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server-skynet-source-3rd-je.../include/jemalloc/internal/arena_inlines_b.h

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Break up headers into constituent parts This is part of a broader change to make header files better represent the dependencies between one another (see https://github.com/jemalloc/jemalloc/issues/533). It breaks up component headers into smaller parts that can be made to have a simpler dependency graph. For the autogenerated headers (smoothstep.h and size_classes.h), no splitting was necessary, so I didn't add support to emit multiple headers.
2017-01-11 10:06:31 +08:00
#ifndef JEMALLOC_INTERNAL_ARENA_INLINES_B_H
#define JEMALLOC_INTERNAL_ARENA_INLINES_B_H
Header refactoring: move jemalloc_internal_types.h out of the catch-all
2017-04-18 06:52:44 +08:00
#include "jemalloc/internal/jemalloc_internal_types.h"
Header refactoring: unify and de-catchall mutex module
2017-05-24 03:28:19 +08:00
#include "jemalloc/internal/mutex.h"
Header refactoring: unify and de-catchall rtree module.
2017-05-24 05:26:31 +08:00
#include "jemalloc/internal/rtree.h"
Hide size class computation behind a layer of indirection. This class removes almost all the dependencies on size_classes.h, accessing the data there only via the new module sc.h, which does not depend on any configuration options. In a subsequent commit, we'll remove the configure-time size class computations, doing them at boot time, instead.
2017-12-15 04:46:39 +08:00
#include "jemalloc/internal/sc.h"
Header refactoring: Pull size helpers out of jemalloc module.
2017-05-31 01:45:37 +08:00
#include "jemalloc/internal/sz.h"
Header refactoring: ticker module - remove from the catchall and unify.
2017-04-20 04:39:33 +08:00
#include "jemalloc/internal/ticker.h"
Header refactoring: move jemalloc_internal_types.h out of the catch-all
2017-04-18 06:52:44 +08:00
Avoid potential issues on extent zero-out. When custom extent_hooks or transparent huge pages are in use, the purging semantics may change, which means we may not get zeroed pages on repopulating. Fixing the issue by manually memset for such cases.
2018-08-11 07:08:50 +08:00
JEMALLOC_ALWAYS_INLINE bool
arena_has_default_hooks(arena_t *arena) {
return (extent_hooks_get(arena) == &extent_hooks_default);
}
Implement huge arena: opt.huge_threshold. The feature allows using a dedicated arena for huge allocations. We want the addtional arena to separate huge allocation because: 1) mixing small extents with huge ones causes fragmentation over the long run (this feature reduces VM size significantly); 2) with many arenas, huge extents rarely get reused across threads; and 3) huge allocations happen way less frequently, therefore no concerns for lock contention.
2018-05-22 04:33:48 +08:00
JEMALLOC_ALWAYS_INLINE arena_t *
arena_choose_maybe_huge(tsd_t *tsd, arena_t *arena, size_t size) {
if (arena != NULL) {
return arena;
}
/*
* For huge allocations, use the dedicated huge arena if both are true:
* 1) is using auto arena selection (i.e. arena == NULL), and 2) the
* thread is not assigned to a manual arena.
*/
Rename huge_threshold to oversize_threshold. The keyword huge tend to remind people of huge pages which is not relevent to the feature.
2019-01-25 08:15:04 +08:00
if (unlikely(size >= oversize_threshold)) {
Implement huge arena: opt.huge_threshold. The feature allows using a dedicated arena for huge allocations. We want the addtional arena to separate huge allocation because: 1) mixing small extents with huge ones causes fragmentation over the long run (this feature reduces VM size significantly); 2) with many arenas, huge extents rarely get reused across threads; and 3) huge allocations happen way less frequently, therefore no concerns for lock contention.
2018-05-22 04:33:48 +08:00
arena_t *tsd_arena = tsd_arena_get(tsd);
if (tsd_arena == NULL || arena_is_auto(tsd_arena)) {
return arena_choose_huge(tsd);
}
}
return arena_choose(tsd, NULL);
}
Pass alloc_ctx down profiling path. With this change, when profiling is enabled, we avoid doing redundant rtree lookups. Also changed dalloc_atx_t to alloc_atx_t, as it's now used on allocation path as well (to speed up profiling).
2017-04-12 09:13:10 +08:00
JEMALLOC_ALWAYS_INLINE prof_tctx_t *
arena_prof_tctx_get(tsdn_t *tsdn, const void *ptr, alloc_ctx_t *alloc_ctx) {
Break up headers into constituent parts This is part of a broader change to make header files better represent the dependencies between one another (see https://github.com/jemalloc/jemalloc/issues/533). It breaks up component headers into smaller parts that can be made to have a simpler dependency graph. For the autogenerated headers (smoothstep.h and size_classes.h), no splitting was necessary, so I didn't add support to emit multiple headers.
2017-01-11 10:06:31 +08:00
cassert(config_prof);
assert(ptr != NULL);
Pass alloc_ctx down profiling path. With this change, when profiling is enabled, we avoid doing redundant rtree lookups. Also changed dalloc_atx_t to alloc_atx_t, as it's now used on allocation path as well (to speed up profiling).
2017-04-12 09:13:10 +08:00
/* Static check. */
if (alloc_ctx == NULL) {
const extent_t *extent = iealloc(tsdn, ptr);
if (unlikely(!extent_slab_get(extent))) {
return large_prof_tctx_get(tsdn, extent);
}
} else {
if (unlikely(!alloc_ctx->slab)) {
return large_prof_tctx_get(tsdn, iealloc(tsdn, ptr));
}
Update brace style. Add braces around single-line blocks, and remove line breaks before function-opening braces. This resolves #537.
2017-01-16 08:56:30 +08:00
}
Remove extraneous parens around return arguments. This resolves #540.
2017-01-20 10:15:45 +08:00
return (prof_tctx_t *)(uintptr_t)1U;
Break up headers into constituent parts This is part of a broader change to make header files better represent the dependencies between one another (see https://github.com/jemalloc/jemalloc/issues/533). It breaks up component headers into smaller parts that can be made to have a simpler dependency graph. For the autogenerated headers (smoothstep.h and size_classes.h), no splitting was necessary, so I didn't add support to emit multiple headers.
2017-01-11 10:06:31 +08:00
}
Pass alloc_ctx down profiling path. With this change, when profiling is enabled, we avoid doing redundant rtree lookups. Also changed dalloc_atx_t to alloc_atx_t, as it's now used on allocation path as well (to speed up profiling).
2017-04-12 09:13:10 +08:00
JEMALLOC_ALWAYS_INLINE void
Clean compilation -Wextra Before this commit jemalloc produced many warnings when compiled with -Wextra with both Clang and GCC. This commit fixes the issues raised by these warnings or suppresses them if they were spurious at least for the Clang and GCC versions covered by CI. This commit: * adds `JEMALLOC_DIAGNOSTIC` macros: `JEMALLOC_DIAGNOSTIC_{PUSH,POP}` are used to modify the stack of enabled diagnostics. The `JEMALLOC_DIAGNOSTIC_IGNORE_...` macros are used to ignore a concrete diagnostic. * adds `JEMALLOC_FALLTHROUGH` macro to explicitly state that falling through `case` labels in a `switch` statement is intended * Removes all UNUSED annotations on function parameters. The warning -Wunused-parameter is now disabled globally in `jemalloc_internal_macros.h` for all translation units that include that header. It is never re-enabled since that header cannot be included by users. * locally suppresses some -Wextra diagnostics: * `-Wmissing-field-initializer` is buggy in older Clang and GCC versions, where it does not understanding that, in C, `= {0}` is a common C idiom to initialize a struct to zero * `-Wtype-bounds` is suppressed in a particular situation where a generic macro, used in multiple different places, compares an unsigned integer for smaller than zero, which is always true. * `-Walloc-larger-than-size=` diagnostics warn when an allocation function is called with a size that is too large (out-of-range). These are suppressed in the parts of the tests where `jemalloc` explicitly does this to test that the allocation functions fail properly. * adds a new CI build bot that runs the log unit test on CI. Closes #1196 .
2018-05-03 17:40:53 +08:00
arena_prof_tctx_set(tsdn_t *tsdn, const void *ptr, size_t usize,
Pass alloc_ctx down profiling path. With this change, when profiling is enabled, we avoid doing redundant rtree lookups. Also changed dalloc_atx_t to alloc_atx_t, as it's now used on allocation path as well (to speed up profiling).
2017-04-12 09:13:10 +08:00
alloc_ctx_t *alloc_ctx, prof_tctx_t *tctx) {
Break up headers into constituent parts This is part of a broader change to make header files better represent the dependencies between one another (see https://github.com/jemalloc/jemalloc/issues/533). It breaks up component headers into smaller parts that can be made to have a simpler dependency graph. For the autogenerated headers (smoothstep.h and size_classes.h), no splitting was necessary, so I didn't add support to emit multiple headers.
2017-01-11 10:06:31 +08:00
cassert(config_prof);
assert(ptr != NULL);
Pass alloc_ctx down profiling path. With this change, when profiling is enabled, we avoid doing redundant rtree lookups. Also changed dalloc_atx_t to alloc_atx_t, as it's now used on allocation path as well (to speed up profiling).
2017-04-12 09:13:10 +08:00
/* Static check. */
if (alloc_ctx == NULL) {
extent_t *extent = iealloc(tsdn, ptr);
if (unlikely(!extent_slab_get(extent))) {
large_prof_tctx_set(tsdn, extent, tctx);
}
} else {
if (unlikely(!alloc_ctx->slab)) {
large_prof_tctx_set(tsdn, iealloc(tsdn, ptr), tctx);
}
Update brace style. Add braces around single-line blocks, and remove line breaks before function-opening braces. This resolves #537.
2017-01-16 08:56:30 +08:00
}
Break up headers into constituent parts This is part of a broader change to make header files better represent the dependencies between one another (see https://github.com/jemalloc/jemalloc/issues/533). It breaks up component headers into smaller parts that can be made to have a simpler dependency graph. For the autogenerated headers (smoothstep.h and size_classes.h), no splitting was necessary, so I didn't add support to emit multiple headers.
2017-01-11 10:06:31 +08:00
}
Get rid of most of the various inline macros.
2017-04-22 00:37:34 +08:00
static inline void
Clean compilation -Wextra Before this commit jemalloc produced many warnings when compiled with -Wextra with both Clang and GCC. This commit fixes the issues raised by these warnings or suppresses them if they were spurious at least for the Clang and GCC versions covered by CI. This commit: * adds `JEMALLOC_DIAGNOSTIC` macros: `JEMALLOC_DIAGNOSTIC_{PUSH,POP}` are used to modify the stack of enabled diagnostics. The `JEMALLOC_DIAGNOSTIC_IGNORE_...` macros are used to ignore a concrete diagnostic. * adds `JEMALLOC_FALLTHROUGH` macro to explicitly state that falling through `case` labels in a `switch` statement is intended * Removes all UNUSED annotations on function parameters. The warning -Wunused-parameter is now disabled globally in `jemalloc_internal_macros.h` for all translation units that include that header. It is never re-enabled since that header cannot be included by users. * locally suppresses some -Wextra diagnostics: * `-Wmissing-field-initializer` is buggy in older Clang and GCC versions, where it does not understanding that, in C, `= {0}` is a common C idiom to initialize a struct to zero * `-Wtype-bounds` is suppressed in a particular situation where a generic macro, used in multiple different places, compares an unsigned integer for smaller than zero, which is always true. * `-Walloc-larger-than-size=` diagnostics warn when an allocation function is called with a size that is too large (out-of-range). These are suppressed in the parts of the tests where `jemalloc` explicitly does this to test that the allocation functions fail properly. * adds a new CI build bot that runs the log unit test on CI. Closes #1196 .
2018-05-03 17:40:53 +08:00
arena_prof_tctx_reset(tsdn_t *tsdn, const void *ptr, prof_tctx_t *tctx) {
Break up headers into constituent parts This is part of a broader change to make header files better represent the dependencies between one another (see https://github.com/jemalloc/jemalloc/issues/533). It breaks up component headers into smaller parts that can be made to have a simpler dependency graph. For the autogenerated headers (smoothstep.h and size_classes.h), no splitting was necessary, so I didn't add support to emit multiple headers.
2017-01-11 10:06:31 +08:00
cassert(config_prof);
assert(ptr != NULL);
Push down iealloc() calls. Call iealloc() as deep into call chains as possible without causing redundant calls.
2017-03-21 02:00:07 +08:00
extent_t *extent = iealloc(tsdn, ptr);
Break up headers into constituent parts This is part of a broader change to make header files better represent the dependencies between one another (see https://github.com/jemalloc/jemalloc/issues/533). It breaks up component headers into smaller parts that can be made to have a simpler dependency graph. For the autogenerated headers (smoothstep.h and size_classes.h), no splitting was necessary, so I didn't add support to emit multiple headers.
2017-01-11 10:06:31 +08:00
assert(!extent_slab_get(extent));
large_prof_tctx_reset(tsdn, extent);
}
Add logging for sampled allocations - prof_opt_log flag starts logging automatically at runtime - prof_log_{start,stop} mallctl for manual control
2018-07-06 01:56:33 +08:00
JEMALLOC_ALWAYS_INLINE nstime_t
arena_prof_alloc_time_get(tsdn_t *tsdn, const void *ptr,
alloc_ctx_t *alloc_ctx) {
cassert(config_prof);
assert(ptr != NULL);
extent_t *extent = iealloc(tsdn, ptr);
Safety checks: Add a redzoning feature.
2019-03-23 03:53:11 +08:00
/*
Add logging for sampled allocations - prof_opt_log flag starts logging automatically at runtime - prof_log_{start,stop} mallctl for manual control
2018-07-06 01:56:33 +08:00
* Unlike arena_prof_prof_tctx_{get, set}, we only call this once we're
* sure we have a sampled allocation.
*/
assert(!extent_slab_get(extent));
return large_prof_alloc_time_get(extent);
}
JEMALLOC_ALWAYS_INLINE void
arena_prof_alloc_time_set(tsdn_t *tsdn, const void *ptr, alloc_ctx_t *alloc_ctx,
nstime_t t) {
cassert(config_prof);
assert(ptr != NULL);
extent_t *extent = iealloc(tsdn, ptr);
assert(!extent_slab_get(extent));
large_prof_alloc_time_set(extent, t);
}
Break up headers into constituent parts This is part of a broader change to make header files better represent the dependencies between one another (see https://github.com/jemalloc/jemalloc/issues/533). It breaks up component headers into smaller parts that can be made to have a simpler dependency graph. For the autogenerated headers (smoothstep.h and size_classes.h), no splitting was necessary, so I didn't add support to emit multiple headers.
2017-01-11 10:06:31 +08:00
JEMALLOC_ALWAYS_INLINE void
Update brace style. Add braces around single-line blocks, and remove line breaks before function-opening braces. This resolves #537.
2017-01-16 08:56:30 +08:00
arena_decay_ticks(tsdn_t *tsdn, arena_t *arena, unsigned nticks) {
Break up headers into constituent parts This is part of a broader change to make header files better represent the dependencies between one another (see https://github.com/jemalloc/jemalloc/issues/533). It breaks up component headers into smaller parts that can be made to have a simpler dependency graph. For the autogenerated headers (smoothstep.h and size_classes.h), no splitting was necessary, so I didn't add support to emit multiple headers.
2017-01-11 10:06:31 +08:00
tsd_t *tsd;
ticker_t *decay_ticker;
Update brace style. Add braces around single-line blocks, and remove line breaks before function-opening braces. This resolves #537.
2017-01-16 08:56:30 +08:00
if (unlikely(tsdn_null(tsdn))) {
Break up headers into constituent parts This is part of a broader change to make header files better represent the dependencies between one another (see https://github.com/jemalloc/jemalloc/issues/533). It breaks up component headers into smaller parts that can be made to have a simpler dependency graph. For the autogenerated headers (smoothstep.h and size_classes.h), no splitting was necessary, so I didn't add support to emit multiple headers.
2017-01-11 10:06:31 +08:00
return;
Update brace style. Add braces around single-line blocks, and remove line breaks before function-opening braces. This resolves #537.
2017-01-16 08:56:30 +08:00
}
Break up headers into constituent parts This is part of a broader change to make header files better represent the dependencies between one another (see https://github.com/jemalloc/jemalloc/issues/533). It breaks up component headers into smaller parts that can be made to have a simpler dependency graph. For the autogenerated headers (smoothstep.h and size_classes.h), no splitting was necessary, so I didn't add support to emit multiple headers.
2017-01-11 10:06:31 +08:00
tsd = tsdn_tsd(tsdn);
decay_ticker = decay_ticker_get(tsd, arena_ind_get(arena));
Update brace style. Add braces around single-line blocks, and remove line breaks before function-opening braces. This resolves #537.
2017-01-16 08:56:30 +08:00
if (unlikely(decay_ticker == NULL)) {
Break up headers into constituent parts This is part of a broader change to make header files better represent the dependencies between one another (see https://github.com/jemalloc/jemalloc/issues/533). It breaks up component headers into smaller parts that can be made to have a simpler dependency graph. For the autogenerated headers (smoothstep.h and size_classes.h), no splitting was necessary, so I didn't add support to emit multiple headers.
2017-01-11 10:06:31 +08:00
return;
Update brace style. Add braces around single-line blocks, and remove line breaks before function-opening braces. This resolves #537.
2017-01-16 08:56:30 +08:00
}
if (unlikely(ticker_ticks(decay_ticker, nticks))) {
Implementing opt.background_thread. Added opt.background_thread to enable background threads, which handles purging currently. When enabled, decay ticks will not trigger purging (which will be left to the background threads). We limit the max number of threads to NCPUs. When percpu arena is enabled, set CPU affinity for the background threads as well. The sleep interval of background threads is dynamic and determined by computing number of pages to purge in the future (based on backlog).
2017-03-18 03:42:33 +08:00
arena_decay(tsdn, arena, false, false);
Update brace style. Add braces around single-line blocks, and remove line breaks before function-opening braces. This resolves #537.
2017-01-16 08:56:30 +08:00
}
Break up headers into constituent parts This is part of a broader change to make header files better represent the dependencies between one another (see https://github.com/jemalloc/jemalloc/issues/533). It breaks up component headers into smaller parts that can be made to have a simpler dependency graph. For the autogenerated headers (smoothstep.h and size_classes.h), no splitting was necessary, so I didn't add support to emit multiple headers.
2017-01-11 10:06:31 +08:00
}
JEMALLOC_ALWAYS_INLINE void
Update brace style. Add braces around single-line blocks, and remove line breaks before function-opening braces. This resolves #537.
2017-01-16 08:56:30 +08:00
arena_decay_tick(tsdn_t *tsdn, arena_t *arena) {
Implement two-phase decay-based purging. Split decay-based purging into two phases, the first of which uses lazy purging to convert dirty pages to "muzzy", and the second of which uses forced purging, decommit, or unmapping to convert pages to clean or destroy them altogether. Not all operating systems support lazy purging, yet the application may provide extent hooks that implement lazy purging, so care must be taken to dynamically omit the first phase when necessary. The mallctl interfaces change as follows: - opt.decay_time --> opt.{dirty,muzzy}_decay_time - arena.<i>.decay_time --> arena.<i>.{dirty,muzzy}_decay_time - arenas.decay_time --> arenas.{dirty,muzzy}_decay_time - stats.arenas.<i>.pdirty --> stats.arenas.<i>.p{dirty,muzzy} - stats.arenas.<i>.{npurge,nmadvise,purged} --> stats.arenas.<i>.{dirty,muzzy}_{npurge,nmadvise,purged} This resolves #521.
2017-03-09 14:42:57 +08:00
malloc_mutex_assert_not_owner(tsdn, &arena->decay_dirty.mtx);
malloc_mutex_assert_not_owner(tsdn, &arena->decay_muzzy.mtx);
Break up headers into constituent parts This is part of a broader change to make header files better represent the dependencies between one another (see https://github.com/jemalloc/jemalloc/issues/533). It breaks up component headers into smaller parts that can be made to have a simpler dependency graph. For the autogenerated headers (smoothstep.h and size_classes.h), no splitting was necessary, so I didn't add support to emit multiple headers.
2017-01-11 10:06:31 +08:00
arena_decay_ticks(tsdn, arena, 1);
}
Eagerly purge oversized merged extents. This change improves memory usage slightly, at virtually no CPU cost.
2019-03-13 06:02:41 +08:00
/* Purge a single extent to retained / unmapped directly. */
JEMALLOC_ALWAYS_INLINE void
arena_decay_extent(tsdn_t *tsdn,arena_t *arena, extent_hooks_t **r_extent_hooks,
extent_t *extent) {
size_t extent_size = extent_size_get(extent);
extent_dalloc_wrapper(tsdn, arena,
r_extent_hooks, extent);
if (config_stats) {
/* Update stats accordingly. */
arena_stats_lock(tsdn, &arena->stats);
arena_stats_add_u64(tsdn, &arena->stats,
&arena->decay_dirty.stats->nmadvise, 1);
arena_stats_add_u64(tsdn, &arena->stats,
&arena->decay_dirty.stats->purged, extent_size >> LG_PAGE);
arena_stats_sub_zu(tsdn, &arena->stats, &arena->stats.mapped,
extent_size);
arena_stats_unlock(tsdn, &arena->stats);
}
}
Break up headers into constituent parts This is part of a broader change to make header files better represent the dependencies between one another (see https://github.com/jemalloc/jemalloc/issues/533). It breaks up component headers into smaller parts that can be made to have a simpler dependency graph. For the autogenerated headers (smoothstep.h and size_classes.h), no splitting was necessary, so I didn't add support to emit multiple headers.
2017-01-11 10:06:31 +08:00
JEMALLOC_ALWAYS_INLINE void *
arena_malloc(tsdn_t *tsdn, arena_t *arena, size_t size, szind_t ind, bool zero,
Update brace style. Add braces around single-line blocks, and remove line breaks before function-opening braces. This resolves #537.
2017-01-16 08:56:30 +08:00
tcache_t *tcache, bool slow_path) {
Break up headers into constituent parts This is part of a broader change to make header files better represent the dependencies between one another (see https://github.com/jemalloc/jemalloc/issues/533). It breaks up component headers into smaller parts that can be made to have a simpler dependency graph. For the autogenerated headers (smoothstep.h and size_classes.h), no splitting was necessary, so I didn't add support to emit multiple headers.
2017-01-11 10:06:31 +08:00
assert(!tsdn_null(tsdn) || tcache == NULL);
if (likely(tcache != NULL)) {
SC: Make some key size classes static. The largest small class, smallest large class, and largest large class may all be needed down fast paths; to avoid the risk of touching another cache line, we can make them available as constants.
2018-07-12 07:05:58 +08:00
if (likely(size <= SC_SMALL_MAXCLASS)) {
Remove extraneous parens around return arguments. This resolves #540.
2017-01-20 10:15:45 +08:00
return tcache_alloc_small(tsdn_tsd(tsdn), arena,
tcache, size, ind, zero, slow_path);
Break up headers into constituent parts This is part of a broader change to make header files better represent the dependencies between one another (see https://github.com/jemalloc/jemalloc/issues/533). It breaks up component headers into smaller parts that can be made to have a simpler dependency graph. For the autogenerated headers (smoothstep.h and size_classes.h), no splitting was necessary, so I didn't add support to emit multiple headers.
2017-01-11 10:06:31 +08:00
}
if (likely(size <= tcache_maxclass)) {
Remove extraneous parens around return arguments. This resolves #540.
2017-01-20 10:15:45 +08:00
return tcache_alloc_large(tsdn_tsd(tsdn), arena,
tcache, size, ind, zero, slow_path);
Break up headers into constituent parts This is part of a broader change to make header files better represent the dependencies between one another (see https://github.com/jemalloc/jemalloc/issues/533). It breaks up component headers into smaller parts that can be made to have a simpler dependency graph. For the autogenerated headers (smoothstep.h and size_classes.h), no splitting was necessary, so I didn't add support to emit multiple headers.
2017-01-11 10:06:31 +08:00
}
/* (size > tcache_maxclass) case falls through. */
assert(size > tcache_maxclass);
}
Remove extraneous parens around return arguments. This resolves #540.
2017-01-20 10:15:45 +08:00
return arena_malloc_hard(tsdn, arena, size, ind, zero);
Break up headers into constituent parts This is part of a broader change to make header files better represent the dependencies between one another (see https://github.com/jemalloc/jemalloc/issues/533). It breaks up component headers into smaller parts that can be made to have a simpler dependency graph. For the autogenerated headers (smoothstep.h and size_classes.h), no splitting was necessary, so I didn't add support to emit multiple headers.
2017-01-11 10:06:31 +08:00
}
JEMALLOC_ALWAYS_INLINE arena_t *
Update brace style. Add braces around single-line blocks, and remove line breaks before function-opening braces. This resolves #537.
2017-01-16 08:56:30 +08:00
arena_aalloc(tsdn_t *tsdn, const void *ptr) {
Remove extraneous parens around return arguments. This resolves #540.
2017-01-20 10:15:45 +08:00
return extent_arena_get(iealloc(tsdn, ptr));
Break up headers into constituent parts This is part of a broader change to make header files better represent the dependencies between one another (see https://github.com/jemalloc/jemalloc/issues/533). It breaks up component headers into smaller parts that can be made to have a simpler dependency graph. For the autogenerated headers (smoothstep.h and size_classes.h), no splitting was necessary, so I didn't add support to emit multiple headers.
2017-01-11 10:06:31 +08:00
}
JEMALLOC_ALWAYS_INLINE size_t
Remove extent arg from isalloc() and arena_salloc().
2017-03-17 16:25:12 +08:00
arena_salloc(tsdn_t *tsdn, const void *ptr) {
Break up headers into constituent parts This is part of a broader change to make header files better represent the dependencies between one another (see https://github.com/jemalloc/jemalloc/issues/533). It breaks up component headers into smaller parts that can be made to have a simpler dependency graph. For the autogenerated headers (smoothstep.h and size_classes.h), no splitting was necessary, so I didn't add support to emit multiple headers.
2017-01-11 10:06:31 +08:00
assert(ptr != NULL);
Incorporate szind/slab into rtree leaves. Expand and restructure the rtree API such that all common operations can be achieved with minimal work, regardless of whether the rtree leaf fields are independent versus packed into a single atomic pointer.
2017-03-17 08:57:52 +08:00
rtree_ctx_t rtree_ctx_fallback;
rtree_ctx_t *rtree_ctx = tsdn_rtree_ctx(tsdn, &rtree_ctx_fallback);
szind_t szind = rtree_szind_read(tsdn, &extents_rtree, rtree_ctx,
(uintptr_t)ptr, true);
Hide size class computation behind a layer of indirection. This class removes almost all the dependencies on size_classes.h, accessing the data there only via the new module sc.h, which does not depend on any configuration options. In a subsequent commit, we'll remove the configure-time size class computations, doing them at boot time, instead.
2017-12-15 04:46:39 +08:00
assert(szind != SC_NSIZES);
Incorporate szind/slab into rtree leaves. Expand and restructure the rtree API such that all common operations can be achieved with minimal work, regardless of whether the rtree leaf fields are independent versus packed into a single atomic pointer.
2017-03-17 08:57:52 +08:00
Header refactoring: Pull size helpers out of jemalloc module.
2017-05-31 01:45:37 +08:00
return sz_index2size(szind);
Incorporate szind/slab into rtree leaves. Expand and restructure the rtree API such that all common operations can be achieved with minimal work, regardless of whether the rtree leaf fields are independent versus packed into a single atomic pointer.
2017-03-17 08:57:52 +08:00
}
JEMALLOC_ALWAYS_INLINE size_t
arena_vsalloc(tsdn_t *tsdn, const void *ptr) {
/*
* Return 0 if ptr is not within an extent managed by jemalloc. This
* function has two extra costs relative to isalloc():
* - The rtree calls cannot claim to be dependent lookups, which induces
* rtree lookup load dependencies.
* - The lookup may fail, so there is an extra branch to check for
* failure.
*/
rtree_ctx_t rtree_ctx_fallback;
rtree_ctx_t *rtree_ctx = tsdn_rtree_ctx(tsdn, &rtree_ctx_fallback);
extent_t *extent;
szind_t szind;
if (rtree_extent_szind_read(tsdn, &extents_rtree, rtree_ctx,
(uintptr_t)ptr, false, &extent, &szind)) {
return 0;
}
if (extent == NULL) {
return 0;
}
assert(extent_state_get(extent) == extent_state_active);
/* Only slab members should be looked up via interior pointers. */
assert(extent_addr_get(extent) == ptr || extent_slab_get(extent));
Hide size class computation behind a layer of indirection. This class removes almost all the dependencies on size_classes.h, accessing the data there only via the new module sc.h, which does not depend on any configuration options. In a subsequent commit, we'll remove the configure-time size class computations, doing them at boot time, instead.
2017-12-15 04:46:39 +08:00
assert(szind != SC_NSIZES);
Incorporate szind/slab into rtree leaves. Expand and restructure the rtree API such that all common operations can be achieved with minimal work, regardless of whether the rtree leaf fields are independent versus packed into a single atomic pointer.
2017-03-17 08:57:52 +08:00
Header refactoring: Pull size helpers out of jemalloc module.
2017-05-31 01:45:37 +08:00
return sz_index2size(szind);
Break up headers into constituent parts This is part of a broader change to make header files better represent the dependencies between one another (see https://github.com/jemalloc/jemalloc/issues/533). It breaks up component headers into smaller parts that can be made to have a simpler dependency graph. For the autogenerated headers (smoothstep.h and size_classes.h), no splitting was necessary, so I didn't add support to emit multiple headers.
2017-01-11 10:06:31 +08:00
}
Invoke arena_dalloc_promoted() properly w/o tcache. When tcache was disabled, the dalloc promoted case was missing.
2019-07-25 07:12:06 +08:00
static inline void
arena_dalloc_large_no_tcache(tsdn_t *tsdn, void *ptr, szind_t szind) {
if (config_prof && unlikely(szind < SC_NBINS)) {
arena_dalloc_promoted(tsdn, ptr, NULL, true);
} else {
extent_t *extent = iealloc(tsdn, ptr);
large_dalloc(tsdn, extent);
}
}
Get rid of most of the various inline macros.
2017-04-22 00:37:34 +08:00
static inline void
Further specialize arena_[s]dalloc() tcache fast path. Use tsd_rtree_ctx() rather than tsdn_rtree_ctx() when tcache is non-NULL, in order to avoid an extra branch (and potentially extra stack space) in the fast path.
2017-03-23 02:00:40 +08:00
arena_dalloc_no_tcache(tsdn_t *tsdn, void *ptr) {
assert(ptr != NULL);
rtree_ctx_t rtree_ctx_fallback;
rtree_ctx_t *rtree_ctx = tsdn_rtree_ctx(tsdn, &rtree_ctx_fallback);
szind_t szind;
bool slab;
rtree_szind_slab_read(tsdn, &extents_rtree, rtree_ctx, (uintptr_t)ptr,
true, &szind, &slab);
if (config_debug) {
extent_t *extent = rtree_extent_read(tsdn, &extents_rtree,
rtree_ctx, (uintptr_t)ptr, true);
assert(szind == extent_szind_get(extent));
Hide size class computation behind a layer of indirection. This class removes almost all the dependencies on size_classes.h, accessing the data there only via the new module sc.h, which does not depend on any configuration options. In a subsequent commit, we'll remove the configure-time size class computations, doing them at boot time, instead.
2017-12-15 04:46:39 +08:00
assert(szind < SC_NSIZES);
Further specialize arena_[s]dalloc() tcache fast path. Use tsd_rtree_ctx() rather than tsdn_rtree_ctx() when tcache is non-NULL, in order to avoid an extra branch (and potentially extra stack space) in the fast path.
2017-03-23 02:00:40 +08:00
assert(slab == extent_slab_get(extent));
}
if (likely(slab)) {
/* Small allocation. */
arena_dalloc_small(tsdn, ptr);
} else {
Invoke arena_dalloc_promoted() properly w/o tcache. When tcache was disabled, the dalloc promoted case was missing.
2019-07-25 07:12:06 +08:00
arena_dalloc_large_no_tcache(tsdn, ptr, szind);
Further specialize arena_[s]dalloc() tcache fast path. Use tsd_rtree_ctx() rather than tsdn_rtree_ctx() when tcache is non-NULL, in order to avoid an extra branch (and potentially extra stack space) in the fast path.
2017-03-23 02:00:40 +08:00
}
}
Refactor arena_dalloc() / _sdalloc().
2019-07-25 07:27:30 +08:00
JEMALLOC_ALWAYS_INLINE void
arena_dalloc_large(tsdn_t *tsdn, void *ptr, tcache_t *tcache, szind_t szind,
bool slow_path) {
if (szind < nhbins) {
if (config_prof && unlikely(szind < SC_NBINS)) {
arena_dalloc_promoted(tsdn, ptr, tcache, slow_path);
} else {
tcache_dalloc_large(tsdn_tsd(tsdn), tcache, ptr, szind,
slow_path);
}
} else {
extent_t *extent = iealloc(tsdn, ptr);
large_dalloc(tsdn, extent);
}
}
Break up headers into constituent parts This is part of a broader change to make header files better represent the dependencies between one another (see https://github.com/jemalloc/jemalloc/issues/533). It breaks up component headers into smaller parts that can be made to have a simpler dependency graph. For the autogenerated headers (smoothstep.h and size_classes.h), no splitting was necessary, so I didn't add support to emit multiple headers.
2017-01-11 10:06:31 +08:00
JEMALLOC_ALWAYS_INLINE void
Pass dealloc_ctx down free() fast path. This gets rid of the redundent rtree lookup down fast path.
2017-04-08 05:12:30 +08:00
arena_dalloc(tsdn_t *tsdn, void *ptr, tcache_t *tcache,
Pass alloc_ctx down profiling path. With this change, when profiling is enabled, we avoid doing redundant rtree lookups. Also changed dalloc_atx_t to alloc_atx_t, as it's now used on allocation path as well (to speed up profiling).
2017-04-12 09:13:10 +08:00
alloc_ctx_t *alloc_ctx, bool slow_path) {
Break up headers into constituent parts This is part of a broader change to make header files better represent the dependencies between one another (see https://github.com/jemalloc/jemalloc/issues/533). It breaks up component headers into smaller parts that can be made to have a simpler dependency graph. For the autogenerated headers (smoothstep.h and size_classes.h), no splitting was necessary, so I didn't add support to emit multiple headers.
2017-01-11 10:06:31 +08:00
assert(!tsdn_null(tsdn) || tcache == NULL);
assert(ptr != NULL);
Further specialize arena_[s]dalloc() tcache fast path. Use tsd_rtree_ctx() rather than tsdn_rtree_ctx() when tcache is non-NULL, in order to avoid an extra branch (and potentially extra stack space) in the fast path.
2017-03-23 02:00:40 +08:00
if (unlikely(tcache == NULL)) {
arena_dalloc_no_tcache(tsdn, ptr);
return;
}
Remove extent dereferences from the deallocation fast paths.
2017-03-17 17:45:12 +08:00
szind_t szind;
bool slab;
Pass dealloc_ctx down free() fast path. This gets rid of the redundent rtree lookup down fast path.
2017-04-08 05:12:30 +08:00
rtree_ctx_t *rtree_ctx;
Pass alloc_ctx down profiling path. With this change, when profiling is enabled, we avoid doing redundant rtree lookups. Also changed dalloc_atx_t to alloc_atx_t, as it's now used on allocation path as well (to speed up profiling).
2017-04-12 09:13:10 +08:00
if (alloc_ctx != NULL) {
szind = alloc_ctx->szind;
slab = alloc_ctx->slab;
Hide size class computation behind a layer of indirection. This class removes almost all the dependencies on size_classes.h, accessing the data there only via the new module sc.h, which does not depend on any configuration options. In a subsequent commit, we'll remove the configure-time size class computations, doing them at boot time, instead.
2017-12-15 04:46:39 +08:00
assert(szind != SC_NSIZES);
Pass dealloc_ctx down free() fast path. This gets rid of the redundent rtree lookup down fast path.
2017-04-08 05:12:30 +08:00
} else {
rtree_ctx = tsd_rtree_ctx(tsdn_tsd(tsdn));
rtree_szind_slab_read(tsdn, &extents_rtree, rtree_ctx,
(uintptr_t)ptr, true, &szind, &slab);
}
Remove extent dereferences from the deallocation fast paths.
2017-03-17 17:45:12 +08:00
if (config_debug) {
Pass dealloc_ctx down free() fast path. This gets rid of the redundent rtree lookup down fast path.
2017-04-08 05:12:30 +08:00
rtree_ctx = tsd_rtree_ctx(tsdn_tsd(tsdn));
Remove extent dereferences from the deallocation fast paths.
2017-03-17 17:45:12 +08:00
extent_t *extent = rtree_extent_read(tsdn, &extents_rtree,
rtree_ctx, (uintptr_t)ptr, true);
assert(szind == extent_szind_get(extent));
Hide size class computation behind a layer of indirection. This class removes almost all the dependencies on size_classes.h, accessing the data there only via the new module sc.h, which does not depend on any configuration options. In a subsequent commit, we'll remove the configure-time size class computations, doing them at boot time, instead.
2017-12-15 04:46:39 +08:00
assert(szind < SC_NSIZES);
Remove extent dereferences from the deallocation fast paths.
2017-03-17 17:45:12 +08:00
assert(slab == extent_slab_get(extent));
}
if (likely(slab)) {
Break up headers into constituent parts This is part of a broader change to make header files better represent the dependencies between one another (see https://github.com/jemalloc/jemalloc/issues/533). It breaks up component headers into smaller parts that can be made to have a simpler dependency graph. For the autogenerated headers (smoothstep.h and size_classes.h), no splitting was necessary, so I didn't add support to emit multiple headers.
2017-01-11 10:06:31 +08:00
/* Small allocation. */
Further specialize arena_[s]dalloc() tcache fast path. Use tsd_rtree_ctx() rather than tsdn_rtree_ctx() when tcache is non-NULL, in order to avoid an extra branch (and potentially extra stack space) in the fast path.
2017-03-23 02:00:40 +08:00
tcache_dalloc_small(tsdn_tsd(tsdn), tcache, ptr, szind,
slow_path);
Break up headers into constituent parts This is part of a broader change to make header files better represent the dependencies between one another (see https://github.com/jemalloc/jemalloc/issues/533). It breaks up component headers into smaller parts that can be made to have a simpler dependency graph. For the autogenerated headers (smoothstep.h and size_classes.h), no splitting was necessary, so I didn't add support to emit multiple headers.
2017-01-11 10:06:31 +08:00
} else {
Refactor arena_dalloc() / _sdalloc().
2019-07-25 07:27:30 +08:00
arena_dalloc_large(tsdn, ptr, tcache, szind, slow_path);
Break up headers into constituent parts This is part of a broader change to make header files better represent the dependencies between one another (see https://github.com/jemalloc/jemalloc/issues/533). It breaks up component headers into smaller parts that can be made to have a simpler dependency graph. For the autogenerated headers (smoothstep.h and size_classes.h), no splitting was necessary, so I didn't add support to emit multiple headers.
2017-01-11 10:06:31 +08:00
}
}
Get rid of most of the various inline macros.
2017-04-22 00:37:34 +08:00
static inline void
Further specialize arena_[s]dalloc() tcache fast path. Use tsd_rtree_ctx() rather than tsdn_rtree_ctx() when tcache is non-NULL, in order to avoid an extra branch (and potentially extra stack space) in the fast path.
2017-03-23 02:00:40 +08:00
arena_sdalloc_no_tcache(tsdn_t *tsdn, void *ptr, size_t size) {
Break up headers into constituent parts This is part of a broader change to make header files better represent the dependencies between one another (see https://github.com/jemalloc/jemalloc/issues/533). It breaks up component headers into smaller parts that can be made to have a simpler dependency graph. For the autogenerated headers (smoothstep.h and size_classes.h), no splitting was necessary, so I didn't add support to emit multiple headers.
2017-01-11 10:06:31 +08:00
assert(ptr != NULL);
SC: Make some key size classes static. The largest small class, smallest large class, and largest large class may all be needed down fast paths; to avoid the risk of touching another cache line, we can make them available as constants.
2018-07-12 07:05:58 +08:00
assert(size <= SC_LARGE_MAXCLASS);
Break up headers into constituent parts This is part of a broader change to make header files better represent the dependencies between one another (see https://github.com/jemalloc/jemalloc/issues/533). It breaks up component headers into smaller parts that can be made to have a simpler dependency graph. For the autogenerated headers (smoothstep.h and size_classes.h), no splitting was necessary, so I didn't add support to emit multiple headers.
2017-01-11 10:06:31 +08:00
Remove extent dereferences from the deallocation fast paths.
2017-03-17 17:45:12 +08:00
szind_t szind;
bool slab;
if (!config_prof || !opt_prof) {
/*
* There is no risk of being confused by a promoted sampled
* object, so base szind and slab on the given size.
*/
Header refactoring: Pull size helpers out of jemalloc module.
2017-05-31 01:45:37 +08:00
szind = sz_size2index(size);
Hide size class computation behind a layer of indirection. This class removes almost all the dependencies on size_classes.h, accessing the data there only via the new module sc.h, which does not depend on any configuration options. In a subsequent commit, we'll remove the configure-time size class computations, doing them at boot time, instead.
2017-12-15 04:46:39 +08:00
slab = (szind < SC_NBINS);
Remove extent dereferences from the deallocation fast paths.
2017-03-17 17:45:12 +08:00
}
if ((config_prof && opt_prof) || config_debug) {
rtree_ctx_t rtree_ctx_fallback;
rtree_ctx_t *rtree_ctx = tsdn_rtree_ctx(tsdn,
&rtree_ctx_fallback);
rtree_szind_slab_read(tsdn, &extents_rtree, rtree_ctx,
(uintptr_t)ptr, true, &szind, &slab);
Header refactoring: Pull size helpers out of jemalloc module.
2017-05-31 01:45:37 +08:00
assert(szind == sz_size2index(size));
Hide size class computation behind a layer of indirection. This class removes almost all the dependencies on size_classes.h, accessing the data there only via the new module sc.h, which does not depend on any configuration options. In a subsequent commit, we'll remove the configure-time size class computations, doing them at boot time, instead.
2017-12-15 04:46:39 +08:00
assert((config_prof && opt_prof) || slab == (szind < SC_NBINS));
Remove extent dereferences from the deallocation fast paths.
2017-03-17 17:45:12 +08:00
if (config_debug) {
extent_t *extent = rtree_extent_read(tsdn,
&extents_rtree, rtree_ctx, (uintptr_t)ptr, true);
assert(szind == extent_szind_get(extent));
assert(slab == extent_slab_get(extent));
}
}
if (likely(slab)) {
Break up headers into constituent parts This is part of a broader change to make header files better represent the dependencies between one another (see https://github.com/jemalloc/jemalloc/issues/533). It breaks up component headers into smaller parts that can be made to have a simpler dependency graph. For the autogenerated headers (smoothstep.h and size_classes.h), no splitting was necessary, so I didn't add support to emit multiple headers.
2017-01-11 10:06:31 +08:00
/* Small allocation. */
Further specialize arena_[s]dalloc() tcache fast path. Use tsd_rtree_ctx() rather than tsdn_rtree_ctx() when tcache is non-NULL, in order to avoid an extra branch (and potentially extra stack space) in the fast path.
2017-03-23 02:00:40 +08:00
arena_dalloc_small(tsdn, ptr);
} else {
Invoke arena_dalloc_promoted() properly w/o tcache. When tcache was disabled, the dalloc promoted case was missing.
2019-07-25 07:12:06 +08:00
arena_dalloc_large_no_tcache(tsdn, ptr, szind);
Further specialize arena_[s]dalloc() tcache fast path. Use tsd_rtree_ctx() rather than tsdn_rtree_ctx() when tcache is non-NULL, in order to avoid an extra branch (and potentially extra stack space) in the fast path.
2017-03-23 02:00:40 +08:00
}
}
JEMALLOC_ALWAYS_INLINE void
arena_sdalloc(tsdn_t *tsdn, void *ptr, size_t size, tcache_t *tcache,
Pass alloc_ctx down profiling path. With this change, when profiling is enabled, we avoid doing redundant rtree lookups. Also changed dalloc_atx_t to alloc_atx_t, as it's now used on allocation path as well (to speed up profiling).
2017-04-12 09:13:10 +08:00
alloc_ctx_t *alloc_ctx, bool slow_path) {
Further specialize arena_[s]dalloc() tcache fast path. Use tsd_rtree_ctx() rather than tsdn_rtree_ctx() when tcache is non-NULL, in order to avoid an extra branch (and potentially extra stack space) in the fast path.
2017-03-23 02:00:40 +08:00
assert(!tsdn_null(tsdn) || tcache == NULL);
assert(ptr != NULL);
SC: Make some key size classes static. The largest small class, smallest large class, and largest large class may all be needed down fast paths; to avoid the risk of touching another cache line, we can make them available as constants.
2018-07-12 07:05:58 +08:00
assert(size <= SC_LARGE_MAXCLASS);
Further specialize arena_[s]dalloc() tcache fast path. Use tsd_rtree_ctx() rather than tsdn_rtree_ctx() when tcache is non-NULL, in order to avoid an extra branch (and potentially extra stack space) in the fast path.
2017-03-23 02:00:40 +08:00
if (unlikely(tcache == NULL)) {
arena_sdalloc_no_tcache(tsdn, ptr, size);
return;
}
szind_t szind;
bool slab;
Clean compilation -Wextra Before this commit jemalloc produced many warnings when compiled with -Wextra with both Clang and GCC. This commit fixes the issues raised by these warnings or suppresses them if they were spurious at least for the Clang and GCC versions covered by CI. This commit: * adds `JEMALLOC_DIAGNOSTIC` macros: `JEMALLOC_DIAGNOSTIC_{PUSH,POP}` are used to modify the stack of enabled diagnostics. The `JEMALLOC_DIAGNOSTIC_IGNORE_...` macros are used to ignore a concrete diagnostic. * adds `JEMALLOC_FALLTHROUGH` macro to explicitly state that falling through `case` labels in a `switch` statement is intended * Removes all UNUSED annotations on function parameters. The warning -Wunused-parameter is now disabled globally in `jemalloc_internal_macros.h` for all translation units that include that header. It is never re-enabled since that header cannot be included by users. * locally suppresses some -Wextra diagnostics: * `-Wmissing-field-initializer` is buggy in older Clang and GCC versions, where it does not understanding that, in C, `= {0}` is a common C idiom to initialize a struct to zero * `-Wtype-bounds` is suppressed in a particular situation where a generic macro, used in multiple different places, compares an unsigned integer for smaller than zero, which is always true. * `-Walloc-larger-than-size=` diagnostics warn when an allocation function is called with a size that is too large (out-of-range). These are suppressed in the parts of the tests where `jemalloc` explicitly does this to test that the allocation functions fail properly. * adds a new CI build bot that runs the log unit test on CI. Closes #1196 .
2018-05-03 17:40:53 +08:00
alloc_ctx_t local_ctx;
Pass dalloc_ctx down the sdalloc path. This avoids redundant rtree lookups.
2017-04-12 05:56:43 +08:00
if (config_prof && opt_prof) {
Pass alloc_ctx down profiling path. With this change, when profiling is enabled, we avoid doing redundant rtree lookups. Also changed dalloc_atx_t to alloc_atx_t, as it's now used on allocation path as well (to speed up profiling).
2017-04-12 09:13:10 +08:00
if (alloc_ctx == NULL) {
Pass dalloc_ctx down the sdalloc path. This avoids redundant rtree lookups.
2017-04-12 05:56:43 +08:00
/* Uncommon case and should be a static check. */
rtree_ctx_t rtree_ctx_fallback;
rtree_ctx_t *rtree_ctx = tsdn_rtree_ctx(tsdn,
&rtree_ctx_fallback);
rtree_szind_slab_read(tsdn, &extents_rtree, rtree_ctx,
(uintptr_t)ptr, true, &local_ctx.szind,
&local_ctx.slab);
Header refactoring: Pull size helpers out of jemalloc module.
2017-05-31 01:45:37 +08:00
assert(local_ctx.szind == sz_size2index(size));
Pass alloc_ctx down profiling path. With this change, when profiling is enabled, we avoid doing redundant rtree lookups. Also changed dalloc_atx_t to alloc_atx_t, as it's now used on allocation path as well (to speed up profiling).
2017-04-12 09:13:10 +08:00
alloc_ctx = &local_ctx;
Pass dalloc_ctx down the sdalloc path. This avoids redundant rtree lookups.
2017-04-12 05:56:43 +08:00
}
Pass alloc_ctx down profiling path. With this change, when profiling is enabled, we avoid doing redundant rtree lookups. Also changed dalloc_atx_t to alloc_atx_t, as it's now used on allocation path as well (to speed up profiling).
2017-04-12 09:13:10 +08:00
slab = alloc_ctx->slab;
szind = alloc_ctx->szind;
Pass dalloc_ctx down the sdalloc path. This avoids redundant rtree lookups.
2017-04-12 05:56:43 +08:00
} else {
Further specialize arena_[s]dalloc() tcache fast path. Use tsd_rtree_ctx() rather than tsdn_rtree_ctx() when tcache is non-NULL, in order to avoid an extra branch (and potentially extra stack space) in the fast path.
2017-03-23 02:00:40 +08:00
/*
* There is no risk of being confused by a promoted sampled
* object, so base szind and slab on the given size.
*/
Header refactoring: Pull size helpers out of jemalloc module.
2017-05-31 01:45:37 +08:00
szind = sz_size2index(size);
Hide size class computation behind a layer of indirection. This class removes almost all the dependencies on size_classes.h, accessing the data there only via the new module sc.h, which does not depend on any configuration options. In a subsequent commit, we'll remove the configure-time size class computations, doing them at boot time, instead.
2017-12-15 04:46:39 +08:00
slab = (szind < SC_NBINS);
Further specialize arena_[s]dalloc() tcache fast path. Use tsd_rtree_ctx() rather than tsdn_rtree_ctx() when tcache is non-NULL, in order to avoid an extra branch (and potentially extra stack space) in the fast path.
2017-03-23 02:00:40 +08:00
}
Pass dalloc_ctx down the sdalloc path. This avoids redundant rtree lookups.
2017-04-12 05:56:43 +08:00
if (config_debug) {
Further specialize arena_[s]dalloc() tcache fast path. Use tsd_rtree_ctx() rather than tsdn_rtree_ctx() when tcache is non-NULL, in order to avoid an extra branch (and potentially extra stack space) in the fast path.
2017-03-23 02:00:40 +08:00
rtree_ctx_t *rtree_ctx = tsd_rtree_ctx(tsdn_tsd(tsdn));
rtree_szind_slab_read(tsdn, &extents_rtree, rtree_ctx,
(uintptr_t)ptr, true, &szind, &slab);
Pass dalloc_ctx down the sdalloc path. This avoids redundant rtree lookups.
2017-04-12 05:56:43 +08:00
extent_t *extent = rtree_extent_read(tsdn,
&extents_rtree, rtree_ctx, (uintptr_t)ptr, true);
assert(szind == extent_szind_get(extent));
assert(slab == extent_slab_get(extent));
Further specialize arena_[s]dalloc() tcache fast path. Use tsd_rtree_ctx() rather than tsdn_rtree_ctx() when tcache is non-NULL, in order to avoid an extra branch (and potentially extra stack space) in the fast path.
2017-03-23 02:00:40 +08:00
}
if (likely(slab)) {
/* Small allocation. */
tcache_dalloc_small(tsdn_tsd(tsdn), tcache, ptr, szind,
slow_path);
Break up headers into constituent parts This is part of a broader change to make header files better represent the dependencies between one another (see https://github.com/jemalloc/jemalloc/issues/533). It breaks up component headers into smaller parts that can be made to have a simpler dependency graph. For the autogenerated headers (smoothstep.h and size_classes.h), no splitting was necessary, so I didn't add support to emit multiple headers.
2017-01-11 10:06:31 +08:00
} else {
Refactor arena_dalloc() / _sdalloc().
2019-07-25 07:27:30 +08:00
arena_dalloc_large(tsdn, ptr, tcache, szind, slow_path);
Break up headers into constituent parts This is part of a broader change to make header files better represent the dependencies between one another (see https://github.com/jemalloc/jemalloc/issues/533). It breaks up component headers into smaller parts that can be made to have a simpler dependency graph. For the autogenerated headers (smoothstep.h and size_classes.h), no splitting was necessary, so I didn't add support to emit multiple headers.
2017-01-11 10:06:31 +08:00
}
}
#endif /* JEMALLOC_INTERNAL_ARENA_INLINES_B_H */
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