Extents: Split out extent struct.
This commit is contained in:
David T. Goldblatt
David Goldblatt
parent
41187bdfb0
commit
723ccc6c27
@ -99,6 +99,7 @@ C_SRCS := $(srcroot)src/jemalloc.c \
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$(srcroot)src/background_thread.c \
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$(srcroot)src/base.c \
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$(srcroot)src/bin.c \
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$(srcroot)src/bin_info.c \
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$(srcroot)src/bitmap.c \
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$(srcroot)src/ckh.c \
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$(srcroot)src/ctl.c \
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@ -1,6 +1,7 @@
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#ifndef JEMALLOC_INTERNAL_BASE_STRUCTS_H
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#define JEMALLOC_INTERNAL_BASE_STRUCTS_H
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#include "jemalloc/internal/extent.h"
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#include "jemalloc/internal/jemalloc_internal_types.h"
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#include "jemalloc/internal/mutex.h"
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#include "jemalloc/internal/sc.h"
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@ -3,6 +3,7 @@
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#include "jemalloc/internal/bin_stats.h"
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#include "jemalloc/internal/bin_types.h"
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#include "jemalloc/internal/extent.h"
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#include "jemalloc/internal/extent_types.h"
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#include "jemalloc/internal/extent_structs.h"
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#include "jemalloc/internal/mutex.h"
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@ -12,49 +13,6 @@
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* A bin contains a set of extents that are currently being used for slab
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* allocations.
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*/
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/*
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* Read-only information associated with each element of arena_t's bins array
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* is stored separately, partly to reduce memory usage (only one copy, rather
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* than one per arena), but mainly to avoid false cacheline sharing.
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*
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* Each slab has the following layout:
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*
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* /--------------------\
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* | region 0 |
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* |--------------------|
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* | region 1 |
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* |--------------------|
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* | ... |
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* | ... |
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* | ... |
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* |--------------------|
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* | region nregs-1 |
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* \--------------------/
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*/
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typedef struct bin_info_s bin_info_t;
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struct bin_info_s {
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/* Size of regions in a slab for this bin's size class. */
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size_t reg_size;
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/* Total size of a slab for this bin's size class. */
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size_t slab_size;
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/* Total number of regions in a slab for this bin's size class. */
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uint32_t nregs;
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/* Number of sharded bins in each arena for this size class. */
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uint32_t n_shards;
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/*
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* Metadata used to manipulate bitmaps for slabs associated with this
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* bin.
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*/
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bitmap_info_t bitmap_info;
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};
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extern bin_info_t bin_infos[SC_NBINS];
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typedef struct bin_s bin_t;
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struct bin_s {
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/* All operations on bin_t fields require lock ownership. */
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@ -92,7 +50,6 @@ struct bins_s {
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void bin_shard_sizes_boot(unsigned bin_shards[SC_NBINS]);
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bool bin_update_shard_size(unsigned bin_shards[SC_NBINS], size_t start_size,
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size_t end_size, size_t nshards);
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void bin_boot(sc_data_t *sc_data, unsigned bin_shard_sizes[SC_NBINS]);
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/* Initializes a bin to empty. Returns true on error. */
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bool bin_init(bin_t *bin);
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50
include/jemalloc/internal/bin_info.h
Normal file
50
include/jemalloc/internal/bin_info.h
Normal file
@ -0,0 +1,50 @@
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#ifndef JEMALLOC_INTERNAL_BIN_INFO_H
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#define JEMALLOC_INTERNAL_BIN_INFO_H
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#include "jemalloc/internal/bitmap.h"
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/*
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* Read-only information associated with each element of arena_t's bins array
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* is stored separately, partly to reduce memory usage (only one copy, rather
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* than one per arena), but mainly to avoid false cacheline sharing.
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*
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* Each slab has the following layout:
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*
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* /--------------------\
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* | region 0 |
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* |--------------------|
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* | region 1 |
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* |--------------------|
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* | ... |
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* | ... |
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* | ... |
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* |--------------------|
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* | region nregs-1 |
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* \--------------------/
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*/
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typedef struct bin_info_s bin_info_t;
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struct bin_info_s {
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/* Size of regions in a slab for this bin's size class. */
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size_t reg_size;
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/* Total size of a slab for this bin's size class. */
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size_t slab_size;
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/* Total number of regions in a slab for this bin's size class. */
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uint32_t nregs;
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/* Number of sharded bins in each arena for this size class. */
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uint32_t n_shards;
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/*
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* Metadata used to manipulate bitmaps for slabs associated with this
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* bin.
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*/
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bitmap_info_t bitmap_info;
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};
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extern bin_info_t bin_infos[SC_NBINS];
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void bin_info_boot(sc_data_t *sc_data, unsigned bin_shard_sizes[SC_NBINS]);
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#endif /* JEMALLOC_INTERNAL_BIN_INFO_H */
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626
include/jemalloc/internal/extent.h
Normal file
626
include/jemalloc/internal/extent.h
Normal file
@ -0,0 +1,626 @@
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#ifndef JEMALLOC_INTERNAL_EXTENT_H
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#define JEMALLOC_INTERNAL_EXTENT_H
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#include "jemalloc/internal/atomic.h"
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#include "jemalloc/internal/bin_info.h"
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#include "jemalloc/internal/bit_util.h"
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#include "jemalloc/internal/nstime.h"
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#include "jemalloc/internal/ph.h"
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#include "jemalloc/internal/ql.h"
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#include "jemalloc/internal/sc.h"
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#include "jemalloc/internal/slab_data.h"
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#include "jemalloc/internal/sz.h"
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enum extent_state_e {
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extent_state_active = 0,
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extent_state_dirty = 1,
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extent_state_muzzy = 2,
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extent_state_retained = 3
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};
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typedef enum extent_state_e extent_state_t;
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enum extent_head_state_e {
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EXTENT_NOT_HEAD,
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EXTENT_IS_HEAD /* Only relevant for Windows && opt.retain. */
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};
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typedef enum extent_head_state_e extent_head_state_t;
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/* Extent (span of pages). Use accessor functions for e_* fields. */
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typedef struct extent_s extent_t;
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typedef ql_head(extent_t) extent_list_t;
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typedef ph(extent_t) extent_tree_t;
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typedef ph(extent_t) extent_heap_t;
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struct extent_s {
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/*
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* Bitfield containing several fields:
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*
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* a: arena_ind
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* b: slab
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* c: committed
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* d: dumpable
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* z: zeroed
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* t: state
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* i: szind
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* f: nfree
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* s: bin_shard
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* n: sn
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*
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* nnnnnnnn ... nnnnnnss ssssffff ffffffii iiiiiitt zdcbaaaa aaaaaaaa
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*
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* arena_ind: Arena from which this extent came, or all 1 bits if
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* unassociated.
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*
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* slab: The slab flag indicates whether the extent is used for a slab
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* of small regions. This helps differentiate small size classes,
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* and it indicates whether interior pointers can be looked up via
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* iealloc().
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*
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* committed: The committed flag indicates whether physical memory is
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* committed to the extent, whether explicitly or implicitly
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* as on a system that overcommits and satisfies physical
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* memory needs on demand via soft page faults.
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*
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* dumpable: The dumpable flag indicates whether or not we've set the
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* memory in question to be dumpable. Note that this
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* interacts somewhat subtly with user-specified extent hooks,
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* since we don't know if *they* are fiddling with
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* dumpability (in which case, we don't want to undo whatever
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* they're doing). To deal with this scenario, we:
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* - Make dumpable false only for memory allocated with the
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* default hooks.
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* - Only allow memory to go from non-dumpable to dumpable,
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* and only once.
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* - Never make the OS call to allow dumping when the
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* dumpable bit is already set.
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* These three constraints mean that we will never
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* accidentally dump user memory that the user meant to set
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* nondumpable with their extent hooks.
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*
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*
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* zeroed: The zeroed flag is used by extent recycling code to track
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* whether memory is zero-filled.
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*
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* state: The state flag is an extent_state_t.
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*
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* szind: The szind flag indicates usable size class index for
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* allocations residing in this extent, regardless of whether the
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* extent is a slab. Extent size and usable size often differ
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* even for non-slabs, either due to sz_large_pad or promotion of
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* sampled small regions.
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*
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* nfree: Number of free regions in slab.
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*
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* bin_shard: the shard of the bin from which this extent came.
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*
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* sn: Serial number (potentially non-unique).
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*
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* Serial numbers may wrap around if !opt_retain, but as long as
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* comparison functions fall back on address comparison for equal
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* serial numbers, stable (if imperfect) ordering is maintained.
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*
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* Serial numbers may not be unique even in the absence of
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* wrap-around, e.g. when splitting an extent and assigning the same
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* serial number to both resulting adjacent extents.
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*/
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uint64_t e_bits;
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#define MASK(CURRENT_FIELD_WIDTH, CURRENT_FIELD_SHIFT) ((((((uint64_t)0x1U) << (CURRENT_FIELD_WIDTH)) - 1)) << (CURRENT_FIELD_SHIFT))
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#define EXTENT_BITS_ARENA_WIDTH MALLOCX_ARENA_BITS
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#define EXTENT_BITS_ARENA_SHIFT 0
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#define EXTENT_BITS_ARENA_MASK MASK(EXTENT_BITS_ARENA_WIDTH, EXTENT_BITS_ARENA_SHIFT)
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#define EXTENT_BITS_SLAB_WIDTH 1
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#define EXTENT_BITS_SLAB_SHIFT (EXTENT_BITS_ARENA_WIDTH + EXTENT_BITS_ARENA_SHIFT)
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#define EXTENT_BITS_SLAB_MASK MASK(EXTENT_BITS_SLAB_WIDTH, EXTENT_BITS_SLAB_SHIFT)
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#define EXTENT_BITS_COMMITTED_WIDTH 1
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#define EXTENT_BITS_COMMITTED_SHIFT (EXTENT_BITS_SLAB_WIDTH + EXTENT_BITS_SLAB_SHIFT)
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#define EXTENT_BITS_COMMITTED_MASK MASK(EXTENT_BITS_COMMITTED_WIDTH, EXTENT_BITS_COMMITTED_SHIFT)
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#define EXTENT_BITS_DUMPABLE_WIDTH 1
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#define EXTENT_BITS_DUMPABLE_SHIFT (EXTENT_BITS_COMMITTED_WIDTH + EXTENT_BITS_COMMITTED_SHIFT)
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#define EXTENT_BITS_DUMPABLE_MASK MASK(EXTENT_BITS_DUMPABLE_WIDTH, EXTENT_BITS_DUMPABLE_SHIFT)
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#define EXTENT_BITS_ZEROED_WIDTH 1
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#define EXTENT_BITS_ZEROED_SHIFT (EXTENT_BITS_DUMPABLE_WIDTH + EXTENT_BITS_DUMPABLE_SHIFT)
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#define EXTENT_BITS_ZEROED_MASK MASK(EXTENT_BITS_ZEROED_WIDTH, EXTENT_BITS_ZEROED_SHIFT)
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#define EXTENT_BITS_STATE_WIDTH 2
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#define EXTENT_BITS_STATE_SHIFT (EXTENT_BITS_ZEROED_WIDTH + EXTENT_BITS_ZEROED_SHIFT)
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#define EXTENT_BITS_STATE_MASK MASK(EXTENT_BITS_STATE_WIDTH, EXTENT_BITS_STATE_SHIFT)
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#define EXTENT_BITS_SZIND_WIDTH LG_CEIL(SC_NSIZES)
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#define EXTENT_BITS_SZIND_SHIFT (EXTENT_BITS_STATE_WIDTH + EXTENT_BITS_STATE_SHIFT)
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#define EXTENT_BITS_SZIND_MASK MASK(EXTENT_BITS_SZIND_WIDTH, EXTENT_BITS_SZIND_SHIFT)
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#define EXTENT_BITS_NFREE_WIDTH (SC_LG_SLAB_MAXREGS + 1)
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#define EXTENT_BITS_NFREE_SHIFT (EXTENT_BITS_SZIND_WIDTH + EXTENT_BITS_SZIND_SHIFT)
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#define EXTENT_BITS_NFREE_MASK MASK(EXTENT_BITS_NFREE_WIDTH, EXTENT_BITS_NFREE_SHIFT)
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#define EXTENT_BITS_BINSHARD_WIDTH 6
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#define EXTENT_BITS_BINSHARD_SHIFT (EXTENT_BITS_NFREE_WIDTH + EXTENT_BITS_NFREE_SHIFT)
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#define EXTENT_BITS_BINSHARD_MASK MASK(EXTENT_BITS_BINSHARD_WIDTH, EXTENT_BITS_BINSHARD_SHIFT)
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#define EXTENT_BITS_IS_HEAD_WIDTH 1
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#define EXTENT_BITS_IS_HEAD_SHIFT (EXTENT_BITS_BINSHARD_WIDTH + EXTENT_BITS_BINSHARD_SHIFT)
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#define EXTENT_BITS_IS_HEAD_MASK MASK(EXTENT_BITS_IS_HEAD_WIDTH, EXTENT_BITS_IS_HEAD_SHIFT)
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#define EXTENT_BITS_SN_SHIFT (EXTENT_BITS_IS_HEAD_WIDTH + EXTENT_BITS_IS_HEAD_SHIFT)
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#define EXTENT_BITS_SN_MASK (UINT64_MAX << EXTENT_BITS_SN_SHIFT)
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/* Pointer to the extent that this structure is responsible for. */
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void *e_addr;
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union {
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/*
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* Extent size and serial number associated with the extent
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* structure (different than the serial number for the extent at
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* e_addr).
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*
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* ssssssss [...] ssssssss ssssnnnn nnnnnnnn
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*/
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size_t e_size_esn;
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#define EXTENT_SIZE_MASK ((size_t)~(PAGE-1))
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#define EXTENT_ESN_MASK ((size_t)PAGE-1)
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/* Base extent size, which may not be a multiple of PAGE. */
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size_t e_bsize;
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};
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/*
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* List linkage, used by a variety of lists:
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* - bin_t's slabs_full
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* - extents_t's LRU
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* - stashed dirty extents
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* - arena's large allocations
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*/
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ql_elm(extent_t) ql_link;
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/*
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* Linkage for per size class sn/address-ordered heaps, and
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* for extent_avail
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*/
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phn(extent_t) ph_link;
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union {
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/* Small region slab metadata. */
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slab_data_t e_slab_data;
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/* Profiling data, used for large objects. */
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struct {
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/* Time when this was allocated. */
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nstime_t e_alloc_time;
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/* Points to a prof_tctx_t. */
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atomic_p_t e_prof_tctx;
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};
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};
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};
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static inline unsigned
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extent_arena_ind_get(const extent_t *extent) {
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unsigned arena_ind = (unsigned)((extent->e_bits &
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EXTENT_BITS_ARENA_MASK) >> EXTENT_BITS_ARENA_SHIFT);
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assert(arena_ind < MALLOCX_ARENA_LIMIT);
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return arena_ind;
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}
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static inline szind_t
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extent_szind_get_maybe_invalid(const extent_t *extent) {
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szind_t szind = (szind_t)((extent->e_bits & EXTENT_BITS_SZIND_MASK) >>
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EXTENT_BITS_SZIND_SHIFT);
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assert(szind <= SC_NSIZES);
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return szind;
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}
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static inline szind_t
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extent_szind_get(const extent_t *extent) {
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szind_t szind = extent_szind_get_maybe_invalid(extent);
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assert(szind < SC_NSIZES); /* Never call when "invalid". */
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return szind;
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}
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static inline size_t
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extent_usize_get(const extent_t *extent) {
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return sz_index2size(extent_szind_get(extent));
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}
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static inline unsigned
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extent_binshard_get(const extent_t *extent) {
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unsigned binshard = (unsigned)((extent->e_bits &
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EXTENT_BITS_BINSHARD_MASK) >> EXTENT_BITS_BINSHARD_SHIFT);
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assert(binshard < bin_infos[extent_szind_get(extent)].n_shards);
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return binshard;
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}
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static inline size_t
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extent_sn_get(const extent_t *extent) {
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return (size_t)((extent->e_bits & EXTENT_BITS_SN_MASK) >>
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EXTENT_BITS_SN_SHIFT);
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}
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static inline extent_state_t
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extent_state_get(const extent_t *extent) {
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return (extent_state_t)((extent->e_bits & EXTENT_BITS_STATE_MASK) >>
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EXTENT_BITS_STATE_SHIFT);
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}
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static inline bool
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extent_zeroed_get(const extent_t *extent) {
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return (bool)((extent->e_bits & EXTENT_BITS_ZEROED_MASK) >>
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EXTENT_BITS_ZEROED_SHIFT);
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}
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static inline bool
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extent_committed_get(const extent_t *extent) {
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return (bool)((extent->e_bits & EXTENT_BITS_COMMITTED_MASK) >>
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EXTENT_BITS_COMMITTED_SHIFT);
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}
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static inline bool
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extent_dumpable_get(const extent_t *extent) {
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return (bool)((extent->e_bits & EXTENT_BITS_DUMPABLE_MASK) >>
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EXTENT_BITS_DUMPABLE_SHIFT);
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}
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static inline bool
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extent_slab_get(const extent_t *extent) {
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return (bool)((extent->e_bits & EXTENT_BITS_SLAB_MASK) >>
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EXTENT_BITS_SLAB_SHIFT);
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}
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static inline unsigned
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extent_nfree_get(const extent_t *extent) {
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assert(extent_slab_get(extent));
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return (unsigned)((extent->e_bits & EXTENT_BITS_NFREE_MASK) >>
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EXTENT_BITS_NFREE_SHIFT);
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}
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static inline void *
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extent_base_get(const extent_t *extent) {
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assert(extent->e_addr == PAGE_ADDR2BASE(extent->e_addr) ||
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!extent_slab_get(extent));
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return PAGE_ADDR2BASE(extent->e_addr);
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}
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static inline void *
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extent_addr_get(const extent_t *extent) {
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assert(extent->e_addr == PAGE_ADDR2BASE(extent->e_addr) ||
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!extent_slab_get(extent));
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return extent->e_addr;
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}
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static inline size_t
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extent_size_get(const extent_t *extent) {
|
||||
return (extent->e_size_esn & EXTENT_SIZE_MASK);
|
||||
}
|
||||
|
||||
static inline size_t
|
||||
extent_esn_get(const extent_t *extent) {
|
||||
return (extent->e_size_esn & EXTENT_ESN_MASK);
|
||||
}
|
||||
|
||||
static inline size_t
|
||||
extent_bsize_get(const extent_t *extent) {
|
||||
return extent->e_bsize;
|
||||
}
|
||||
|
||||
static inline void *
|
||||
extent_before_get(const extent_t *extent) {
|
||||
return (void *)((uintptr_t)extent_base_get(extent) - PAGE);
|
||||
}
|
||||
|
||||
static inline void *
|
||||
extent_last_get(const extent_t *extent) {
|
||||
return (void *)((uintptr_t)extent_base_get(extent) +
|
||||
extent_size_get(extent) - PAGE);
|
||||
}
|
||||
|
||||
static inline void *
|
||||
extent_past_get(const extent_t *extent) {
|
||||
return (void *)((uintptr_t)extent_base_get(extent) +
|
||||
extent_size_get(extent));
|
||||
}
|
||||
|
||||
static inline slab_data_t *
|
||||
extent_slab_data_get(extent_t *extent) {
|
||||
assert(extent_slab_get(extent));
|
||||
return &extent->e_slab_data;
|
||||
}
|
||||
|
||||
static inline const slab_data_t *
|
||||
extent_slab_data_get_const(const extent_t *extent) {
|
||||
assert(extent_slab_get(extent));
|
||||
return &extent->e_slab_data;
|
||||
}
|
||||
|
||||
static inline prof_tctx_t *
|
||||
extent_prof_tctx_get(const extent_t *extent) {
|
||||
return (prof_tctx_t *)atomic_load_p(&extent->e_prof_tctx,
|
||||
ATOMIC_ACQUIRE);
|
||||
}
|
||||
|
||||
static inline nstime_t
|
||||
extent_prof_alloc_time_get(const extent_t *extent) {
|
||||
return extent->e_alloc_time;
|
||||
}
|
||||
|
||||
static inline void
|
||||
extent_arena_ind_set(extent_t *extent, unsigned arena_ind) {
|
||||
extent->e_bits = (extent->e_bits & ~EXTENT_BITS_ARENA_MASK) |
|
||||
((uint64_t)arena_ind << EXTENT_BITS_ARENA_SHIFT);
|
||||
}
|
||||
|
||||
static inline void
|
||||
extent_binshard_set(extent_t *extent, unsigned binshard) {
|
||||
/* The assertion assumes szind is set already. */
|
||||
assert(binshard < bin_infos[extent_szind_get(extent)].n_shards);
|
||||
extent->e_bits = (extent->e_bits & ~EXTENT_BITS_BINSHARD_MASK) |
|
||||
((uint64_t)binshard << EXTENT_BITS_BINSHARD_SHIFT);
|
||||
}
|
||||
|
||||
static inline void
|
||||
extent_addr_set(extent_t *extent, void *addr) {
|
||||
extent->e_addr = addr;
|
||||
}
|
||||
|
||||
static inline void
|
||||
extent_size_set(extent_t *extent, size_t size) {
|
||||
assert((size & ~EXTENT_SIZE_MASK) == 0);
|
||||
extent->e_size_esn = size | (extent->e_size_esn & ~EXTENT_SIZE_MASK);
|
||||
}
|
||||
|
||||
static inline void
|
||||
extent_esn_set(extent_t *extent, size_t esn) {
|
||||
extent->e_size_esn = (extent->e_size_esn & ~EXTENT_ESN_MASK) | (esn &
|
||||
EXTENT_ESN_MASK);
|
||||
}
|
||||
|
||||
static inline void
|
||||
extent_bsize_set(extent_t *extent, size_t bsize) {
|
||||
extent->e_bsize = bsize;
|
||||
}
|
||||
|
||||
static inline void
|
||||
extent_szind_set(extent_t *extent, szind_t szind) {
|
||||
assert(szind <= SC_NSIZES); /* SC_NSIZES means "invalid". */
|
||||
extent->e_bits = (extent->e_bits & ~EXTENT_BITS_SZIND_MASK) |
|
||||
((uint64_t)szind << EXTENT_BITS_SZIND_SHIFT);
|
||||
}
|
||||
|
||||
static inline void
|
||||
extent_nfree_set(extent_t *extent, unsigned nfree) {
|
||||
assert(extent_slab_get(extent));
|
||||
extent->e_bits = (extent->e_bits & ~EXTENT_BITS_NFREE_MASK) |
|
||||
((uint64_t)nfree << EXTENT_BITS_NFREE_SHIFT);
|
||||
}
|
||||
|
||||
static inline void
|
||||
extent_nfree_binshard_set(extent_t *extent, unsigned nfree, unsigned binshard) {
|
||||
/* The assertion assumes szind is set already. */
|
||||
assert(binshard < bin_infos[extent_szind_get(extent)].n_shards);
|
||||
extent->e_bits = (extent->e_bits &
|
||||
(~EXTENT_BITS_NFREE_MASK & ~EXTENT_BITS_BINSHARD_MASK)) |
|
||||
((uint64_t)binshard << EXTENT_BITS_BINSHARD_SHIFT) |
|
||||
((uint64_t)nfree << EXTENT_BITS_NFREE_SHIFT);
|
||||
}
|
||||
|
||||
static inline void
|
||||
extent_nfree_inc(extent_t *extent) {
|
||||
assert(extent_slab_get(extent));
|
||||
extent->e_bits += ((uint64_t)1U << EXTENT_BITS_NFREE_SHIFT);
|
||||
}
|
||||
|
||||
static inline void
|
||||
extent_nfree_dec(extent_t *extent) {
|
||||
assert(extent_slab_get(extent));
|
||||
extent->e_bits -= ((uint64_t)1U << EXTENT_BITS_NFREE_SHIFT);
|
||||
}
|
||||
|
||||
static inline void
|
||||
extent_nfree_sub(extent_t *extent, uint64_t n) {
|
||||
assert(extent_slab_get(extent));
|
||||
extent->e_bits -= (n << EXTENT_BITS_NFREE_SHIFT);
|
||||
}
|
||||
|
||||
static inline void
|
||||
extent_sn_set(extent_t *extent, size_t sn) {
|
||||
extent->e_bits = (extent->e_bits & ~EXTENT_BITS_SN_MASK) |
|
||||
((uint64_t)sn << EXTENT_BITS_SN_SHIFT);
|
||||
}
|
||||
|
||||
static inline void
|
||||
extent_state_set(extent_t *extent, extent_state_t state) {
|
||||
extent->e_bits = (extent->e_bits & ~EXTENT_BITS_STATE_MASK) |
|
||||
((uint64_t)state << EXTENT_BITS_STATE_SHIFT);
|
||||
}
|
||||
|
||||
static inline void
|
||||
extent_zeroed_set(extent_t *extent, bool zeroed) {
|
||||
extent->e_bits = (extent->e_bits & ~EXTENT_BITS_ZEROED_MASK) |
|
||||
((uint64_t)zeroed << EXTENT_BITS_ZEROED_SHIFT);
|
||||
}
|
||||
|
||||
static inline void
|
||||
extent_committed_set(extent_t *extent, bool committed) {
|
||||
extent->e_bits = (extent->e_bits & ~EXTENT_BITS_COMMITTED_MASK) |
|
||||
((uint64_t)committed << EXTENT_BITS_COMMITTED_SHIFT);
|
||||
}
|
||||
|
||||
static inline void
|
||||
extent_dumpable_set(extent_t *extent, bool dumpable) {
|
||||
extent->e_bits = (extent->e_bits & ~EXTENT_BITS_DUMPABLE_MASK) |
|
||||
((uint64_t)dumpable << EXTENT_BITS_DUMPABLE_SHIFT);
|
||||
}
|
||||
|
||||
static inline void
|
||||
extent_slab_set(extent_t *extent, bool slab) {
|
||||
extent->e_bits = (extent->e_bits & ~EXTENT_BITS_SLAB_MASK) |
|
||||
((uint64_t)slab << EXTENT_BITS_SLAB_SHIFT);
|
||||
}
|
||||
|
||||
static inline void
|
||||
extent_prof_tctx_set(extent_t *extent, prof_tctx_t *tctx) {
|
||||
atomic_store_p(&extent->e_prof_tctx, tctx, ATOMIC_RELEASE);
|
||||
}
|
||||
|
||||
static inline void
|
||||
extent_prof_alloc_time_set(extent_t *extent, nstime_t t) {
|
||||
nstime_copy(&extent->e_alloc_time, &t);
|
||||
}
|
||||
|
||||
static inline bool
|
||||
extent_is_head_get(extent_t *extent) {
|
||||
if (maps_coalesce) {
|
||||
not_reached();
|
||||
}
|
||||
|
||||
return (bool)((extent->e_bits & EXTENT_BITS_IS_HEAD_MASK) >>
|
||||
EXTENT_BITS_IS_HEAD_SHIFT);
|
||||
}
|
||||
|
||||
static inline void
|
||||
extent_is_head_set(extent_t *extent, bool is_head) {
|
||||
if (maps_coalesce) {
|
||||
not_reached();
|
||||
}
|
||||
|
||||
extent->e_bits = (extent->e_bits & ~EXTENT_BITS_IS_HEAD_MASK) |
|
||||
((uint64_t)is_head << EXTENT_BITS_IS_HEAD_SHIFT);
|
||||
}
|
||||
|
||||
static inline void
|
||||
extent_init(extent_t *extent, unsigned arena_ind, void *addr, size_t size,
|
||||
bool slab, szind_t szind, size_t sn, extent_state_t state, bool zeroed,
|
||||
bool committed, bool dumpable, extent_head_state_t is_head) {
|
||||
assert(addr == PAGE_ADDR2BASE(addr) || !slab);
|
||||
|
||||
extent_arena_ind_set(extent, arena_ind);
|
||||
extent_addr_set(extent, addr);
|
||||
extent_size_set(extent, size);
|
||||
extent_slab_set(extent, slab);
|
||||
extent_szind_set(extent, szind);
|
||||
extent_sn_set(extent, sn);
|
||||
extent_state_set(extent, state);
|
||||
extent_zeroed_set(extent, zeroed);
|
||||
extent_committed_set(extent, committed);
|
||||
extent_dumpable_set(extent, dumpable);
|
||||
ql_elm_new(extent, ql_link);
|
||||
if (!maps_coalesce) {
|
||||
extent_is_head_set(extent, (is_head == EXTENT_IS_HEAD) ? true :
|
||||
false);
|
||||
}
|
||||
if (config_prof) {
|
||||
extent_prof_tctx_set(extent, NULL);
|
||||
}
|
||||
}
|
||||
|
||||
static inline void
|
||||
extent_binit(extent_t *extent, void *addr, size_t bsize, size_t sn) {
|
||||
extent_arena_ind_set(extent, (1U << MALLOCX_ARENA_BITS) - 1);
|
||||
extent_addr_set(extent, addr);
|
||||
extent_bsize_set(extent, bsize);
|
||||
extent_slab_set(extent, false);
|
||||
extent_szind_set(extent, SC_NSIZES);
|
||||
extent_sn_set(extent, sn);
|
||||
extent_state_set(extent, extent_state_active);
|
||||
extent_zeroed_set(extent, true);
|
||||
extent_committed_set(extent, true);
|
||||
extent_dumpable_set(extent, true);
|
||||
}
|
||||
|
||||
static inline void
|
||||
extent_list_init(extent_list_t *list) {
|
||||
ql_new(list);
|
||||
}
|
||||
|
||||
static inline extent_t *
|
||||
extent_list_first(const extent_list_t *list) {
|
||||
return ql_first(list);
|
||||
}
|
||||
|
||||
static inline extent_t *
|
||||
extent_list_last(const extent_list_t *list) {
|
||||
return ql_last(list, ql_link);
|
||||
}
|
||||
|
||||
static inline void
|
||||
extent_list_append(extent_list_t *list, extent_t *extent) {
|
||||
ql_tail_insert(list, extent, ql_link);
|
||||
}
|
||||
|
||||
static inline void
|
||||
extent_list_prepend(extent_list_t *list, extent_t *extent) {
|
||||
ql_head_insert(list, extent, ql_link);
|
||||
}
|
||||
|
||||
static inline void
|
||||
extent_list_replace(extent_list_t *list, extent_t *to_remove,
|
||||
extent_t *to_insert) {
|
||||
ql_after_insert(to_remove, to_insert, ql_link);
|
||||
ql_remove(list, to_remove, ql_link);
|
||||
}
|
||||
|
||||
static inline void
|
||||
extent_list_remove(extent_list_t *list, extent_t *extent) {
|
||||
ql_remove(list, extent, ql_link);
|
||||
}
|
||||
|
||||
static inline int
|
||||
extent_sn_comp(const extent_t *a, const extent_t *b) {
|
||||
size_t a_sn = extent_sn_get(a);
|
||||
size_t b_sn = extent_sn_get(b);
|
||||
|
||||
return (a_sn > b_sn) - (a_sn < b_sn);
|
||||
}
|
||||
|
||||
static inline int
|
||||
extent_esn_comp(const extent_t *a, const extent_t *b) {
|
||||
size_t a_esn = extent_esn_get(a);
|
||||
size_t b_esn = extent_esn_get(b);
|
||||
|
||||
return (a_esn > b_esn) - (a_esn < b_esn);
|
||||
}
|
||||
|
||||
static inline int
|
||||
extent_ad_comp(const extent_t *a, const extent_t *b) {
|
||||
uintptr_t a_addr = (uintptr_t)extent_addr_get(a);
|
||||
uintptr_t b_addr = (uintptr_t)extent_addr_get(b);
|
||||
|
||||
return (a_addr > b_addr) - (a_addr < b_addr);
|
||||
}
|
||||
|
||||
static inline int
|
||||
extent_ead_comp(const extent_t *a, const extent_t *b) {
|
||||
uintptr_t a_eaddr = (uintptr_t)a;
|
||||
uintptr_t b_eaddr = (uintptr_t)b;
|
||||
|
||||
return (a_eaddr > b_eaddr) - (a_eaddr < b_eaddr);
|
||||
}
|
||||
|
||||
static inline int
|
||||
extent_snad_comp(const extent_t *a, const extent_t *b) {
|
||||
int ret;
|
||||
|
||||
ret = extent_sn_comp(a, b);
|
||||
if (ret != 0) {
|
||||
return ret;
|
||||
}
|
||||
|
||||
ret = extent_ad_comp(a, b);
|
||||
return ret;
|
||||
}
|
||||
|
||||
static inline int
|
||||
extent_esnead_comp(const extent_t *a, const extent_t *b) {
|
||||
int ret;
|
||||
|
||||
ret = extent_esn_comp(a, b);
|
||||
if (ret != 0) {
|
||||
return ret;
|
||||
}
|
||||
|
||||
ret = extent_ead_comp(a, b);
|
||||
return ret;
|
||||
}
|
||||
|
||||
#endif /* JEMALLOC_INTERNAL_EXTENT_H */
|
||||
@ -35,432 +35,4 @@ extent_unlock2(tsdn_t *tsdn, extent_t *extent1, extent_t *extent2) {
|
||||
(uintptr_t)extent2);
|
||||
}
|
||||
|
||||
static inline unsigned
|
||||
extent_arena_ind_get(const extent_t *extent) {
|
||||
unsigned arena_ind = (unsigned)((extent->e_bits &
|
||||
EXTENT_BITS_ARENA_MASK) >> EXTENT_BITS_ARENA_SHIFT);
|
||||
assert(arena_ind < MALLOCX_ARENA_LIMIT);
|
||||
|
||||
return arena_ind;
|
||||
}
|
||||
|
||||
static inline szind_t
|
||||
extent_szind_get_maybe_invalid(const extent_t *extent) {
|
||||
szind_t szind = (szind_t)((extent->e_bits & EXTENT_BITS_SZIND_MASK) >>
|
||||
EXTENT_BITS_SZIND_SHIFT);
|
||||
assert(szind <= SC_NSIZES);
|
||||
return szind;
|
||||
}
|
||||
|
||||
static inline szind_t
|
||||
extent_szind_get(const extent_t *extent) {
|
||||
szind_t szind = extent_szind_get_maybe_invalid(extent);
|
||||
assert(szind < SC_NSIZES); /* Never call when "invalid". */
|
||||
return szind;
|
||||
}
|
||||
|
||||
static inline size_t
|
||||
extent_usize_get(const extent_t *extent) {
|
||||
return sz_index2size(extent_szind_get(extent));
|
||||
}
|
||||
|
||||
static inline unsigned
|
||||
extent_binshard_get(const extent_t *extent) {
|
||||
unsigned binshard = (unsigned)((extent->e_bits &
|
||||
EXTENT_BITS_BINSHARD_MASK) >> EXTENT_BITS_BINSHARD_SHIFT);
|
||||
assert(binshard < bin_infos[extent_szind_get(extent)].n_shards);
|
||||
return binshard;
|
||||
}
|
||||
|
||||
static inline size_t
|
||||
extent_sn_get(const extent_t *extent) {
|
||||
return (size_t)((extent->e_bits & EXTENT_BITS_SN_MASK) >>
|
||||
EXTENT_BITS_SN_SHIFT);
|
||||
}
|
||||
|
||||
static inline extent_state_t
|
||||
extent_state_get(const extent_t *extent) {
|
||||
return (extent_state_t)((extent->e_bits & EXTENT_BITS_STATE_MASK) >>
|
||||
EXTENT_BITS_STATE_SHIFT);
|
||||
}
|
||||
|
||||
static inline bool
|
||||
extent_zeroed_get(const extent_t *extent) {
|
||||
return (bool)((extent->e_bits & EXTENT_BITS_ZEROED_MASK) >>
|
||||
EXTENT_BITS_ZEROED_SHIFT);
|
||||
}
|
||||
|
||||
static inline bool
|
||||
extent_committed_get(const extent_t *extent) {
|
||||
return (bool)((extent->e_bits & EXTENT_BITS_COMMITTED_MASK) >>
|
||||
EXTENT_BITS_COMMITTED_SHIFT);
|
||||
}
|
||||
|
||||
static inline bool
|
||||
extent_dumpable_get(const extent_t *extent) {
|
||||
return (bool)((extent->e_bits & EXTENT_BITS_DUMPABLE_MASK) >>
|
||||
EXTENT_BITS_DUMPABLE_SHIFT);
|
||||
}
|
||||
|
||||
static inline bool
|
||||
extent_slab_get(const extent_t *extent) {
|
||||
return (bool)((extent->e_bits & EXTENT_BITS_SLAB_MASK) >>
|
||||
EXTENT_BITS_SLAB_SHIFT);
|
||||
}
|
||||
|
||||
static inline unsigned
|
||||
extent_nfree_get(const extent_t *extent) {
|
||||
assert(extent_slab_get(extent));
|
||||
return (unsigned)((extent->e_bits & EXTENT_BITS_NFREE_MASK) >>
|
||||
EXTENT_BITS_NFREE_SHIFT);
|
||||
}
|
||||
|
||||
static inline void *
|
||||
extent_base_get(const extent_t *extent) {
|
||||
assert(extent->e_addr == PAGE_ADDR2BASE(extent->e_addr) ||
|
||||
!extent_slab_get(extent));
|
||||
return PAGE_ADDR2BASE(extent->e_addr);
|
||||
}
|
||||
|
||||
static inline void *
|
||||
extent_addr_get(const extent_t *extent) {
|
||||
assert(extent->e_addr == PAGE_ADDR2BASE(extent->e_addr) ||
|
||||
!extent_slab_get(extent));
|
||||
return extent->e_addr;
|
||||
}
|
||||
|
||||
static inline size_t
|
||||
extent_size_get(const extent_t *extent) {
|
||||
return (extent->e_size_esn & EXTENT_SIZE_MASK);
|
||||
}
|
||||
|
||||
static inline size_t
|
||||
extent_esn_get(const extent_t *extent) {
|
||||
return (extent->e_size_esn & EXTENT_ESN_MASK);
|
||||
}
|
||||
|
||||
static inline size_t
|
||||
extent_bsize_get(const extent_t *extent) {
|
||||
return extent->e_bsize;
|
||||
}
|
||||
|
||||
static inline void *
|
||||
extent_before_get(const extent_t *extent) {
|
||||
return (void *)((uintptr_t)extent_base_get(extent) - PAGE);
|
||||
}
|
||||
|
||||
static inline void *
|
||||
extent_last_get(const extent_t *extent) {
|
||||
return (void *)((uintptr_t)extent_base_get(extent) +
|
||||
extent_size_get(extent) - PAGE);
|
||||
}
|
||||
|
||||
static inline void *
|
||||
extent_past_get(const extent_t *extent) {
|
||||
return (void *)((uintptr_t)extent_base_get(extent) +
|
||||
extent_size_get(extent));
|
||||
}
|
||||
|
||||
static inline slab_data_t *
|
||||
extent_slab_data_get(extent_t *extent) {
|
||||
assert(extent_slab_get(extent));
|
||||
return &extent->e_slab_data;
|
||||
}
|
||||
|
||||
static inline const slab_data_t *
|
||||
extent_slab_data_get_const(const extent_t *extent) {
|
||||
assert(extent_slab_get(extent));
|
||||
return &extent->e_slab_data;
|
||||
}
|
||||
|
||||
static inline prof_tctx_t *
|
||||
extent_prof_tctx_get(const extent_t *extent) {
|
||||
return (prof_tctx_t *)atomic_load_p(&extent->e_prof_tctx,
|
||||
ATOMIC_ACQUIRE);
|
||||
}
|
||||
|
||||
static inline nstime_t
|
||||
extent_prof_alloc_time_get(const extent_t *extent) {
|
||||
return extent->e_alloc_time;
|
||||
}
|
||||
|
||||
static inline void
|
||||
extent_arena_ind_set(extent_t *extent, unsigned arena_ind) {
|
||||
extent->e_bits = (extent->e_bits & ~EXTENT_BITS_ARENA_MASK) |
|
||||
((uint64_t)arena_ind << EXTENT_BITS_ARENA_SHIFT);
|
||||
}
|
||||
|
||||
static inline void
|
||||
extent_binshard_set(extent_t *extent, unsigned binshard) {
|
||||
/* The assertion assumes szind is set already. */
|
||||
assert(binshard < bin_infos[extent_szind_get(extent)].n_shards);
|
||||
extent->e_bits = (extent->e_bits & ~EXTENT_BITS_BINSHARD_MASK) |
|
||||
((uint64_t)binshard << EXTENT_BITS_BINSHARD_SHIFT);
|
||||
}
|
||||
|
||||
static inline void
|
||||
extent_addr_set(extent_t *extent, void *addr) {
|
||||
extent->e_addr = addr;
|
||||
}
|
||||
|
||||
static inline void
|
||||
extent_size_set(extent_t *extent, size_t size) {
|
||||
assert((size & ~EXTENT_SIZE_MASK) == 0);
|
||||
extent->e_size_esn = size | (extent->e_size_esn & ~EXTENT_SIZE_MASK);
|
||||
}
|
||||
|
||||
static inline void
|
||||
extent_esn_set(extent_t *extent, size_t esn) {
|
||||
extent->e_size_esn = (extent->e_size_esn & ~EXTENT_ESN_MASK) | (esn &
|
||||
EXTENT_ESN_MASK);
|
||||
}
|
||||
|
||||
static inline void
|
||||
extent_bsize_set(extent_t *extent, size_t bsize) {
|
||||
extent->e_bsize = bsize;
|
||||
}
|
||||
|
||||
static inline void
|
||||
extent_szind_set(extent_t *extent, szind_t szind) {
|
||||
assert(szind <= SC_NSIZES); /* SC_NSIZES means "invalid". */
|
||||
extent->e_bits = (extent->e_bits & ~EXTENT_BITS_SZIND_MASK) |
|
||||
((uint64_t)szind << EXTENT_BITS_SZIND_SHIFT);
|
||||
}
|
||||
|
||||
static inline void
|
||||
extent_nfree_set(extent_t *extent, unsigned nfree) {
|
||||
assert(extent_slab_get(extent));
|
||||
extent->e_bits = (extent->e_bits & ~EXTENT_BITS_NFREE_MASK) |
|
||||
((uint64_t)nfree << EXTENT_BITS_NFREE_SHIFT);
|
||||
}
|
||||
|
||||
static inline void
|
||||
extent_nfree_binshard_set(extent_t *extent, unsigned nfree, unsigned binshard) {
|
||||
/* The assertion assumes szind is set already. */
|
||||
assert(binshard < bin_infos[extent_szind_get(extent)].n_shards);
|
||||
extent->e_bits = (extent->e_bits &
|
||||
(~EXTENT_BITS_NFREE_MASK & ~EXTENT_BITS_BINSHARD_MASK)) |
|
||||
((uint64_t)binshard << EXTENT_BITS_BINSHARD_SHIFT) |
|
||||
((uint64_t)nfree << EXTENT_BITS_NFREE_SHIFT);
|
||||
}
|
||||
|
||||
static inline void
|
||||
extent_nfree_inc(extent_t *extent) {
|
||||
assert(extent_slab_get(extent));
|
||||
extent->e_bits += ((uint64_t)1U << EXTENT_BITS_NFREE_SHIFT);
|
||||
}
|
||||
|
||||
static inline void
|
||||
extent_nfree_dec(extent_t *extent) {
|
||||
assert(extent_slab_get(extent));
|
||||
extent->e_bits -= ((uint64_t)1U << EXTENT_BITS_NFREE_SHIFT);
|
||||
}
|
||||
|
||||
static inline void
|
||||
extent_nfree_sub(extent_t *extent, uint64_t n) {
|
||||
assert(extent_slab_get(extent));
|
||||
extent->e_bits -= (n << EXTENT_BITS_NFREE_SHIFT);
|
||||
}
|
||||
|
||||
static inline void
|
||||
extent_sn_set(extent_t *extent, size_t sn) {
|
||||
extent->e_bits = (extent->e_bits & ~EXTENT_BITS_SN_MASK) |
|
||||
((uint64_t)sn << EXTENT_BITS_SN_SHIFT);
|
||||
}
|
||||
|
||||
static inline void
|
||||
extent_state_set(extent_t *extent, extent_state_t state) {
|
||||
extent->e_bits = (extent->e_bits & ~EXTENT_BITS_STATE_MASK) |
|
||||
((uint64_t)state << EXTENT_BITS_STATE_SHIFT);
|
||||
}
|
||||
|
||||
static inline void
|
||||
extent_zeroed_set(extent_t *extent, bool zeroed) {
|
||||
extent->e_bits = (extent->e_bits & ~EXTENT_BITS_ZEROED_MASK) |
|
||||
((uint64_t)zeroed << EXTENT_BITS_ZEROED_SHIFT);
|
||||
}
|
||||
|
||||
static inline void
|
||||
extent_committed_set(extent_t *extent, bool committed) {
|
||||
extent->e_bits = (extent->e_bits & ~EXTENT_BITS_COMMITTED_MASK) |
|
||||
((uint64_t)committed << EXTENT_BITS_COMMITTED_SHIFT);
|
||||
}
|
||||
|
||||
static inline void
|
||||
extent_dumpable_set(extent_t *extent, bool dumpable) {
|
||||
extent->e_bits = (extent->e_bits & ~EXTENT_BITS_DUMPABLE_MASK) |
|
||||
((uint64_t)dumpable << EXTENT_BITS_DUMPABLE_SHIFT);
|
||||
}
|
||||
|
||||
static inline void
|
||||
extent_slab_set(extent_t *extent, bool slab) {
|
||||
extent->e_bits = (extent->e_bits & ~EXTENT_BITS_SLAB_MASK) |
|
||||
((uint64_t)slab << EXTENT_BITS_SLAB_SHIFT);
|
||||
}
|
||||
|
||||
static inline void
|
||||
extent_prof_tctx_set(extent_t *extent, prof_tctx_t *tctx) {
|
||||
atomic_store_p(&extent->e_prof_tctx, tctx, ATOMIC_RELEASE);
|
||||
}
|
||||
|
||||
static inline void
|
||||
extent_prof_alloc_time_set(extent_t *extent, nstime_t t) {
|
||||
nstime_copy(&extent->e_alloc_time, &t);
|
||||
}
|
||||
|
||||
static inline bool
|
||||
extent_is_head_get(extent_t *extent) {
|
||||
if (maps_coalesce) {
|
||||
not_reached();
|
||||
}
|
||||
|
||||
return (bool)((extent->e_bits & EXTENT_BITS_IS_HEAD_MASK) >>
|
||||
EXTENT_BITS_IS_HEAD_SHIFT);
|
||||
}
|
||||
|
||||
static inline void
|
||||
extent_is_head_set(extent_t *extent, bool is_head) {
|
||||
if (maps_coalesce) {
|
||||
not_reached();
|
||||
}
|
||||
|
||||
extent->e_bits = (extent->e_bits & ~EXTENT_BITS_IS_HEAD_MASK) |
|
||||
((uint64_t)is_head << EXTENT_BITS_IS_HEAD_SHIFT);
|
||||
}
|
||||
|
||||
static inline void
|
||||
extent_init(extent_t *extent, unsigned arena_ind, void *addr, size_t size,
|
||||
bool slab, szind_t szind, size_t sn, extent_state_t state, bool zeroed,
|
||||
bool committed, bool dumpable, extent_head_state_t is_head) {
|
||||
assert(addr == PAGE_ADDR2BASE(addr) || !slab);
|
||||
|
||||
extent_arena_ind_set(extent, arena_ind);
|
||||
extent_addr_set(extent, addr);
|
||||
extent_size_set(extent, size);
|
||||
extent_slab_set(extent, slab);
|
||||
extent_szind_set(extent, szind);
|
||||
extent_sn_set(extent, sn);
|
||||
extent_state_set(extent, state);
|
||||
extent_zeroed_set(extent, zeroed);
|
||||
extent_committed_set(extent, committed);
|
||||
extent_dumpable_set(extent, dumpable);
|
||||
ql_elm_new(extent, ql_link);
|
||||
if (!maps_coalesce) {
|
||||
extent_is_head_set(extent, (is_head == EXTENT_IS_HEAD) ? true :
|
||||
false);
|
||||
}
|
||||
if (config_prof) {
|
||||
extent_prof_tctx_set(extent, NULL);
|
||||
}
|
||||
}
|
||||
|
||||
static inline void
|
||||
extent_binit(extent_t *extent, void *addr, size_t bsize, size_t sn) {
|
||||
extent_arena_ind_set(extent, (1U << MALLOCX_ARENA_BITS) - 1);
|
||||
extent_addr_set(extent, addr);
|
||||
extent_bsize_set(extent, bsize);
|
||||
extent_slab_set(extent, false);
|
||||
extent_szind_set(extent, SC_NSIZES);
|
||||
extent_sn_set(extent, sn);
|
||||
extent_state_set(extent, extent_state_active);
|
||||
extent_zeroed_set(extent, true);
|
||||
extent_committed_set(extent, true);
|
||||
extent_dumpable_set(extent, true);
|
||||
}
|
||||
|
||||
static inline void
|
||||
extent_list_init(extent_list_t *list) {
|
||||
ql_new(list);
|
||||
}
|
||||
|
||||
static inline extent_t *
|
||||
extent_list_first(const extent_list_t *list) {
|
||||
return ql_first(list);
|
||||
}
|
||||
|
||||
static inline extent_t *
|
||||
extent_list_last(const extent_list_t *list) {
|
||||
return ql_last(list, ql_link);
|
||||
}
|
||||
|
||||
static inline void
|
||||
extent_list_append(extent_list_t *list, extent_t *extent) {
|
||||
ql_tail_insert(list, extent, ql_link);
|
||||
}
|
||||
|
||||
static inline void
|
||||
extent_list_prepend(extent_list_t *list, extent_t *extent) {
|
||||
ql_head_insert(list, extent, ql_link);
|
||||
}
|
||||
|
||||
static inline void
|
||||
extent_list_replace(extent_list_t *list, extent_t *to_remove,
|
||||
extent_t *to_insert) {
|
||||
ql_after_insert(to_remove, to_insert, ql_link);
|
||||
ql_remove(list, to_remove, ql_link);
|
||||
}
|
||||
|
||||
static inline void
|
||||
extent_list_remove(extent_list_t *list, extent_t *extent) {
|
||||
ql_remove(list, extent, ql_link);
|
||||
}
|
||||
|
||||
static inline int
|
||||
extent_sn_comp(const extent_t *a, const extent_t *b) {
|
||||
size_t a_sn = extent_sn_get(a);
|
||||
size_t b_sn = extent_sn_get(b);
|
||||
|
||||
return (a_sn > b_sn) - (a_sn < b_sn);
|
||||
}
|
||||
|
||||
static inline int
|
||||
extent_esn_comp(const extent_t *a, const extent_t *b) {
|
||||
size_t a_esn = extent_esn_get(a);
|
||||
size_t b_esn = extent_esn_get(b);
|
||||
|
||||
return (a_esn > b_esn) - (a_esn < b_esn);
|
||||
}
|
||||
|
||||
static inline int
|
||||
extent_ad_comp(const extent_t *a, const extent_t *b) {
|
||||
uintptr_t a_addr = (uintptr_t)extent_addr_get(a);
|
||||
uintptr_t b_addr = (uintptr_t)extent_addr_get(b);
|
||||
|
||||
return (a_addr > b_addr) - (a_addr < b_addr);
|
||||
}
|
||||
|
||||
static inline int
|
||||
extent_ead_comp(const extent_t *a, const extent_t *b) {
|
||||
uintptr_t a_eaddr = (uintptr_t)a;
|
||||
uintptr_t b_eaddr = (uintptr_t)b;
|
||||
|
||||
return (a_eaddr > b_eaddr) - (a_eaddr < b_eaddr);
|
||||
}
|
||||
|
||||
static inline int
|
||||
extent_snad_comp(const extent_t *a, const extent_t *b) {
|
||||
int ret;
|
||||
|
||||
ret = extent_sn_comp(a, b);
|
||||
if (ret != 0) {
|
||||
return ret;
|
||||
}
|
||||
|
||||
ret = extent_ad_comp(a, b);
|
||||
return ret;
|
||||
}
|
||||
|
||||
static inline int
|
||||
extent_esnead_comp(const extent_t *a, const extent_t *b) {
|
||||
int ret;
|
||||
|
||||
ret = extent_esn_comp(a, b);
|
||||
if (ret != 0) {
|
||||
return ret;
|
||||
}
|
||||
|
||||
ret = extent_ead_comp(a, b);
|
||||
return ret;
|
||||
}
|
||||
|
||||
#endif /* JEMALLOC_INTERNAL_EXTENT_INLINES_H */
|
||||
|
||||
@ -2,7 +2,6 @@
|
||||
#define JEMALLOC_INTERNAL_EXTENT_STRUCTS_H
|
||||
|
||||
#include "jemalloc/internal/atomic.h"
|
||||
#include "jemalloc/internal/bit_util.h"
|
||||
#include "jemalloc/internal/bitmap.h"
|
||||
#include "jemalloc/internal/mutex.h"
|
||||
#include "jemalloc/internal/ql.h"
|
||||
@ -10,182 +9,6 @@
|
||||
#include "jemalloc/internal/sc.h"
|
||||
#include "jemalloc/internal/slab_data.h"
|
||||
|
||||
typedef enum {
|
||||
extent_state_active = 0,
|
||||
extent_state_dirty = 1,
|
||||
extent_state_muzzy = 2,
|
||||
extent_state_retained = 3
|
||||
} extent_state_t;
|
||||
|
||||
/* Extent (span of pages). Use accessor functions for e_* fields. */
|
||||
struct extent_s {
|
||||
/*
|
||||
* Bitfield containing several fields:
|
||||
*
|
||||
* a: arena_ind
|
||||
* b: slab
|
||||
* c: committed
|
||||
* d: dumpable
|
||||
* z: zeroed
|
||||
* t: state
|
||||
* i: szind
|
||||
* f: nfree
|
||||
* s: bin_shard
|
||||
* n: sn
|
||||
*
|
||||
* nnnnnnnn ... nnnnnnss ssssffff ffffffii iiiiiitt zdcbaaaa aaaaaaaa
|
||||
*
|
||||
* arena_ind: Arena from which this extent came, or all 1 bits if
|
||||
* unassociated.
|
||||
*
|
||||
* slab: The slab flag indicates whether the extent is used for a slab
|
||||
* of small regions. This helps differentiate small size classes,
|
||||
* and it indicates whether interior pointers can be looked up via
|
||||
* iealloc().
|
||||
*
|
||||
* committed: The committed flag indicates whether physical memory is
|
||||
* committed to the extent, whether explicitly or implicitly
|
||||
* as on a system that overcommits and satisfies physical
|
||||
* memory needs on demand via soft page faults.
|
||||
*
|
||||
* dumpable: The dumpable flag indicates whether or not we've set the
|
||||
* memory in question to be dumpable. Note that this
|
||||
* interacts somewhat subtly with user-specified extent hooks,
|
||||
* since we don't know if *they* are fiddling with
|
||||
* dumpability (in which case, we don't want to undo whatever
|
||||
* they're doing). To deal with this scenario, we:
|
||||
* - Make dumpable false only for memory allocated with the
|
||||
* default hooks.
|
||||
* - Only allow memory to go from non-dumpable to dumpable,
|
||||
* and only once.
|
||||
* - Never make the OS call to allow dumping when the
|
||||
* dumpable bit is already set.
|
||||
* These three constraints mean that we will never
|
||||
* accidentally dump user memory that the user meant to set
|
||||
* nondumpable with their extent hooks.
|
||||
*
|
||||
*
|
||||
* zeroed: The zeroed flag is used by extent recycling code to track
|
||||
* whether memory is zero-filled.
|
||||
*
|
||||
* state: The state flag is an extent_state_t.
|
||||
*
|
||||
* szind: The szind flag indicates usable size class index for
|
||||
* allocations residing in this extent, regardless of whether the
|
||||
* extent is a slab. Extent size and usable size often differ
|
||||
* even for non-slabs, either due to sz_large_pad or promotion of
|
||||
* sampled small regions.
|
||||
*
|
||||
* nfree: Number of free regions in slab.
|
||||
*
|
||||
* bin_shard: the shard of the bin from which this extent came.
|
||||
*
|
||||
* sn: Serial number (potentially non-unique).
|
||||
*
|
||||
* Serial numbers may wrap around if !opt_retain, but as long as
|
||||
* comparison functions fall back on address comparison for equal
|
||||
* serial numbers, stable (if imperfect) ordering is maintained.
|
||||
*
|
||||
* Serial numbers may not be unique even in the absence of
|
||||
* wrap-around, e.g. when splitting an extent and assigning the same
|
||||
* serial number to both resulting adjacent extents.
|
||||
*/
|
||||
uint64_t e_bits;
|
||||
#define MASK(CURRENT_FIELD_WIDTH, CURRENT_FIELD_SHIFT) ((((((uint64_t)0x1U) << (CURRENT_FIELD_WIDTH)) - 1)) << (CURRENT_FIELD_SHIFT))
|
||||
|
||||
#define EXTENT_BITS_ARENA_WIDTH MALLOCX_ARENA_BITS
|
||||
#define EXTENT_BITS_ARENA_SHIFT 0
|
||||
#define EXTENT_BITS_ARENA_MASK MASK(EXTENT_BITS_ARENA_WIDTH, EXTENT_BITS_ARENA_SHIFT)
|
||||
|
||||
#define EXTENT_BITS_SLAB_WIDTH 1
|
||||
#define EXTENT_BITS_SLAB_SHIFT (EXTENT_BITS_ARENA_WIDTH + EXTENT_BITS_ARENA_SHIFT)
|
||||
#define EXTENT_BITS_SLAB_MASK MASK(EXTENT_BITS_SLAB_WIDTH, EXTENT_BITS_SLAB_SHIFT)
|
||||
|
||||
#define EXTENT_BITS_COMMITTED_WIDTH 1
|
||||
#define EXTENT_BITS_COMMITTED_SHIFT (EXTENT_BITS_SLAB_WIDTH + EXTENT_BITS_SLAB_SHIFT)
|
||||
#define EXTENT_BITS_COMMITTED_MASK MASK(EXTENT_BITS_COMMITTED_WIDTH, EXTENT_BITS_COMMITTED_SHIFT)
|
||||
|
||||
#define EXTENT_BITS_DUMPABLE_WIDTH 1
|
||||
#define EXTENT_BITS_DUMPABLE_SHIFT (EXTENT_BITS_COMMITTED_WIDTH + EXTENT_BITS_COMMITTED_SHIFT)
|
||||
#define EXTENT_BITS_DUMPABLE_MASK MASK(EXTENT_BITS_DUMPABLE_WIDTH, EXTENT_BITS_DUMPABLE_SHIFT)
|
||||
|
||||
#define EXTENT_BITS_ZEROED_WIDTH 1
|
||||
#define EXTENT_BITS_ZEROED_SHIFT (EXTENT_BITS_DUMPABLE_WIDTH + EXTENT_BITS_DUMPABLE_SHIFT)
|
||||
#define EXTENT_BITS_ZEROED_MASK MASK(EXTENT_BITS_ZEROED_WIDTH, EXTENT_BITS_ZEROED_SHIFT)
|
||||
|
||||
#define EXTENT_BITS_STATE_WIDTH 2
|
||||
#define EXTENT_BITS_STATE_SHIFT (EXTENT_BITS_ZEROED_WIDTH + EXTENT_BITS_ZEROED_SHIFT)
|
||||
#define EXTENT_BITS_STATE_MASK MASK(EXTENT_BITS_STATE_WIDTH, EXTENT_BITS_STATE_SHIFT)
|
||||
|
||||
#define EXTENT_BITS_SZIND_WIDTH LG_CEIL(SC_NSIZES)
|
||||
#define EXTENT_BITS_SZIND_SHIFT (EXTENT_BITS_STATE_WIDTH + EXTENT_BITS_STATE_SHIFT)
|
||||
#define EXTENT_BITS_SZIND_MASK MASK(EXTENT_BITS_SZIND_WIDTH, EXTENT_BITS_SZIND_SHIFT)
|
||||
|
||||
#define EXTENT_BITS_NFREE_WIDTH (SC_LG_SLAB_MAXREGS + 1)
|
||||
#define EXTENT_BITS_NFREE_SHIFT (EXTENT_BITS_SZIND_WIDTH + EXTENT_BITS_SZIND_SHIFT)
|
||||
#define EXTENT_BITS_NFREE_MASK MASK(EXTENT_BITS_NFREE_WIDTH, EXTENT_BITS_NFREE_SHIFT)
|
||||
|
||||
#define EXTENT_BITS_BINSHARD_WIDTH 6
|
||||
#define EXTENT_BITS_BINSHARD_SHIFT (EXTENT_BITS_NFREE_WIDTH + EXTENT_BITS_NFREE_SHIFT)
|
||||
#define EXTENT_BITS_BINSHARD_MASK MASK(EXTENT_BITS_BINSHARD_WIDTH, EXTENT_BITS_BINSHARD_SHIFT)
|
||||
|
||||
#define EXTENT_BITS_IS_HEAD_WIDTH 1
|
||||
#define EXTENT_BITS_IS_HEAD_SHIFT (EXTENT_BITS_BINSHARD_WIDTH + EXTENT_BITS_BINSHARD_SHIFT)
|
||||
#define EXTENT_BITS_IS_HEAD_MASK MASK(EXTENT_BITS_IS_HEAD_WIDTH, EXTENT_BITS_IS_HEAD_SHIFT)
|
||||
|
||||
#define EXTENT_BITS_SN_SHIFT (EXTENT_BITS_IS_HEAD_WIDTH + EXTENT_BITS_IS_HEAD_SHIFT)
|
||||
#define EXTENT_BITS_SN_MASK (UINT64_MAX << EXTENT_BITS_SN_SHIFT)
|
||||
|
||||
/* Pointer to the extent that this structure is responsible for. */
|
||||
void *e_addr;
|
||||
|
||||
union {
|
||||
/*
|
||||
* Extent size and serial number associated with the extent
|
||||
* structure (different than the serial number for the extent at
|
||||
* e_addr).
|
||||
*
|
||||
* ssssssss [...] ssssssss ssssnnnn nnnnnnnn
|
||||
*/
|
||||
size_t e_size_esn;
|
||||
#define EXTENT_SIZE_MASK ((size_t)~(PAGE-1))
|
||||
#define EXTENT_ESN_MASK ((size_t)PAGE-1)
|
||||
/* Base extent size, which may not be a multiple of PAGE. */
|
||||
size_t e_bsize;
|
||||
};
|
||||
|
||||
/*
|
||||
* List linkage, used by a variety of lists:
|
||||
* - bin_t's slabs_full
|
||||
* - extents_t's LRU
|
||||
* - stashed dirty extents
|
||||
* - arena's large allocations
|
||||
*/
|
||||
ql_elm(extent_t) ql_link;
|
||||
|
||||
/*
|
||||
* Linkage for per size class sn/address-ordered heaps, and
|
||||
* for extent_avail
|
||||
*/
|
||||
phn(extent_t) ph_link;
|
||||
|
||||
union {
|
||||
/* Small region slab metadata. */
|
||||
slab_data_t e_slab_data;
|
||||
|
||||
/* Profiling data, used for large objects. */
|
||||
struct {
|
||||
/* Time when this was allocated. */
|
||||
nstime_t e_alloc_time;
|
||||
/* Points to a prof_tctx_t. */
|
||||
atomic_p_t e_prof_tctx;
|
||||
};
|
||||
};
|
||||
};
|
||||
typedef ql_head(extent_t) extent_list_t;
|
||||
typedef ph(extent_t) extent_tree_t;
|
||||
typedef ph(extent_t) extent_heap_t;
|
||||
|
||||
/* Quantized collection of extents, with built-in LRU queue. */
|
||||
struct extents_s {
|
||||
malloc_mutex_t mtx;
|
||||
|
||||
@ -1,7 +1,6 @@
|
||||
#ifndef JEMALLOC_INTERNAL_EXTENT_TYPES_H
|
||||
#define JEMALLOC_INTERNAL_EXTENT_TYPES_H
|
||||
|
||||
typedef struct extent_s extent_t;
|
||||
typedef struct extents_s extents_t;
|
||||
|
||||
typedef struct extent_util_stats_s extent_util_stats_t;
|
||||
@ -15,9 +14,4 @@ typedef struct extent_util_stats_verbose_s extent_util_stats_verbose_t;
|
||||
*/
|
||||
#define LG_EXTENT_MAX_ACTIVE_FIT_DEFAULT 6
|
||||
|
||||
typedef enum {
|
||||
EXTENT_NOT_HEAD,
|
||||
EXTENT_IS_HEAD /* Only relevant for Windows && opt.retain. */
|
||||
} extent_head_state_t;
|
||||
|
||||
#endif /* JEMALLOC_INTERNAL_EXTENT_TYPES_H */
|
||||
|
||||
@ -50,10 +50,9 @@
|
||||
/* STRUCTS */
|
||||
/******************************************************************************/
|
||||
|
||||
#include "jemalloc/internal/extent_structs.h"
|
||||
#include "jemalloc/internal/base_structs.h"
|
||||
#include "jemalloc/internal/prof_structs.h"
|
||||
#include "jemalloc/internal/arena_structs.h"
|
||||
#include "jemalloc/internal/base_structs.h"
|
||||
#include "jemalloc/internal/tcache_structs.h"
|
||||
#include "jemalloc/internal/background_thread_structs.h"
|
||||
|
||||
|
||||
@ -39,6 +39,7 @@
|
||||
<ClCompile Include="..\..\..\..\src\background_thread.c" />
|
||||
<ClCompile Include="..\..\..\..\src\base.c" />
|
||||
<ClCompile Include="..\..\..\..\src\bin.c" />
|
||||
<ClCompile Include="..\..\..\..\src\bin_info.c" />
|
||||
<ClCompile Include="..\..\..\..\src\bitmap.c" />
|
||||
<ClCompile Include="..\..\..\..\src\ckh.c" />
|
||||
<ClCompile Include="..\..\..\..\src\ctl.c" />
|
||||
|
||||
@ -39,6 +39,7 @@
|
||||
<ClCompile Include="..\..\..\..\src\background_thread.c" />
|
||||
<ClCompile Include="..\..\..\..\src\base.c" />
|
||||
<ClCompile Include="..\..\..\..\src\bin.c" />
|
||||
<ClCompile Include="..\..\..\..\src\bin_info.c" />
|
||||
<ClCompile Include="..\..\..\..\src\bitmap.c" />
|
||||
<ClCompile Include="..\..\..\..\src\ckh.c" />
|
||||
<ClCompile Include="..\..\..\..\src\ctl.c" />
|
||||
|
||||
26
src/bin.c
26
src/bin.c
@ -6,26 +6,6 @@
|
||||
#include "jemalloc/internal/sc.h"
|
||||
#include "jemalloc/internal/witness.h"
|
||||
|
||||
bin_info_t bin_infos[SC_NBINS];
|
||||
|
||||
static void
|
||||
bin_infos_init(sc_data_t *sc_data, unsigned bin_shard_sizes[SC_NBINS],
|
||||
bin_info_t bin_infos[SC_NBINS]) {
|
||||
for (unsigned i = 0; i < SC_NBINS; i++) {
|
||||
bin_info_t *bin_info = &bin_infos[i];
|
||||
sc_t *sc = &sc_data->sc[i];
|
||||
bin_info->reg_size = ((size_t)1U << sc->lg_base)
|
||||
+ ((size_t)sc->ndelta << sc->lg_delta);
|
||||
bin_info->slab_size = (sc->pgs << LG_PAGE);
|
||||
bin_info->nregs =
|
||||
(uint32_t)(bin_info->slab_size / bin_info->reg_size);
|
||||
bin_info->n_shards = bin_shard_sizes[i];
|
||||
bitmap_info_t bitmap_info = BITMAP_INFO_INITIALIZER(
|
||||
bin_info->nregs);
|
||||
bin_info->bitmap_info = bitmap_info;
|
||||
}
|
||||
}
|
||||
|
||||
bool
|
||||
bin_update_shard_size(unsigned bin_shard_sizes[SC_NBINS], size_t start_size,
|
||||
size_t end_size, size_t nshards) {
|
||||
@ -58,12 +38,6 @@ bin_shard_sizes_boot(unsigned bin_shard_sizes[SC_NBINS]) {
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
bin_boot(sc_data_t *sc_data, unsigned bin_shard_sizes[SC_NBINS]) {
|
||||
assert(sc_data->initialized);
|
||||
bin_infos_init(sc_data, bin_shard_sizes, bin_infos);
|
||||
}
|
||||
|
||||
bool
|
||||
bin_init(bin_t *bin) {
|
||||
if (malloc_mutex_init(&bin->lock, "bin", WITNESS_RANK_BIN,
|
||||
|
||||
30
src/bin_info.c
Normal file
30
src/bin_info.c
Normal file
@ -0,0 +1,30 @@
|
||||
#include "jemalloc/internal/jemalloc_preamble.h"
|
||||
#include "jemalloc/internal/jemalloc_internal_includes.h"
|
||||
|
||||
#include "jemalloc/internal/bin_info.h"
|
||||
|
||||
bin_info_t bin_infos[SC_NBINS];
|
||||
|
||||
static void
|
||||
bin_infos_init(sc_data_t *sc_data, unsigned bin_shard_sizes[SC_NBINS],
|
||||
bin_info_t bin_infos[SC_NBINS]) {
|
||||
for (unsigned i = 0; i < SC_NBINS; i++) {
|
||||
bin_info_t *bin_info = &bin_infos[i];
|
||||
sc_t *sc = &sc_data->sc[i];
|
||||
bin_info->reg_size = ((size_t)1U << sc->lg_base)
|
||||
+ ((size_t)sc->ndelta << sc->lg_delta);
|
||||
bin_info->slab_size = (sc->pgs << LG_PAGE);
|
||||
bin_info->nregs =
|
||||
(uint32_t)(bin_info->slab_size / bin_info->reg_size);
|
||||
bin_info->n_shards = bin_shard_sizes[i];
|
||||
bitmap_info_t bitmap_info = BITMAP_INFO_INITIALIZER(
|
||||
bin_info->nregs);
|
||||
bin_info->bitmap_info = bitmap_info;
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
bin_info_boot(sc_data_t *sc_data, unsigned bin_shard_sizes[SC_NBINS]) {
|
||||
assert(sc_data->initialized);
|
||||
bin_infos_init(sc_data, bin_shard_sizes, bin_infos);
|
||||
}
|
||||
@ -1488,8 +1488,8 @@ malloc_init_hard_a0_locked() {
|
||||
* Ordering here is somewhat tricky; we need sc_boot() first, since that
|
||||
* determines what the size classes will be, and then
|
||||
* malloc_conf_init(), since any slab size tweaking will need to be done
|
||||
* before sz_boot and bin_boot, which assume that the values they read
|
||||
* out of sc_data_global are final.
|
||||
* before sz_boot and bin_info_boot, which assume that the values they
|
||||
* read out of sc_data_global are final.
|
||||
*/
|
||||
sc_boot(&sc_data);
|
||||
unsigned bin_shard_sizes[SC_NBINS];
|
||||
@ -1504,7 +1504,7 @@ malloc_init_hard_a0_locked() {
|
||||
}
|
||||
malloc_conf_init(&sc_data, bin_shard_sizes);
|
||||
sz_boot(&sc_data);
|
||||
bin_boot(&sc_data, bin_shard_sizes);
|
||||
bin_info_boot(&sc_data, bin_shard_sizes);
|
||||
|
||||
if (opt_stats_print) {
|
||||
/* Print statistics at exit. */
|
||||
|
||||
Loading…
Reference in New Issue
Block a user