project-base/server-skynet-source-3rd-jemalloc
2
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Rename "dirty chunks" to "cached chunks".

Browse Source 
Rename "dirty chunks" to "cached chunks", in order to avoid overloading
the term "dirty".

Fix the regression caused by 339c2b23b2
(Fix chunk_unmap() to propagate dirty state.), and actually address what
that change attempted, which is to only purge chunks once, and propagate
whether zeroed pages resulted into chunk_record().
This commit is contained in:
Jason Evans 2015-02-18 01:15:50 -08:00
parent 339c2b23b2
commit 738e089a2e
7 changed files with 91 additions and 86 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

22
include/jemalloc/internal/arena.h
View File

@ -318,14 +318,14 @@ struct arena_s {
/* /*
* Unused dirty memory this arena manages. Dirty memory is conceptually * Unused dirty memory this arena manages. Dirty memory is conceptually
* tracked as an arbitrarily interleaved LRU of runs and chunks, but the * tracked as an arbitrarily interleaved LRU of dirty runs and cached
* list linkage is actually semi-duplicated in order to avoid extra * chunks, but the list linkage is actually semi-duplicated in order to
* arena_chunk_map_misc_t space overhead. * avoid extra arena_chunk_map_misc_t space overhead.
* *
* LRU-----------------------------------------------------------MRU * LRU-----------------------------------------------------------MRU
* *
* ______________ ___ ___ * ______________ ___ ___
* ...-->|chunks_dirty|<--------->|c|<-------------------->|c|<--... * ...-->|chunks_cache|<--------->|c|<-------------------->|c|<--...
* -------------- |h| |h| * -------------- |h| |h|
* ____________ _____ |u| _____ _____ |u| * ____________ _____ |u| _____ _____ |u|
* ...-->|runs_dirty|<-->|run|<-->|n|<-->|run|<-->|run|<-->|n|<--... * ...-->|runs_dirty|<-->|run|<-->|n|<-->|run|<-->|run|<-->|n|<--...
@ -333,7 +333,7 @@ struct arena_s {
* --- --- * --- ---
*/ */
arena_chunk_map_misc_t runs_dirty; arena_chunk_map_misc_t runs_dirty;
extent_node_t chunks_dirty; extent_node_t chunks_cache;
/* Extant huge allocations. */ /* Extant huge allocations. */
ql_head(extent_node_t) huge; ql_head(extent_node_t) huge;
@ -347,8 +347,8 @@ struct arena_s {
* orderings are needed, which is why there are two trees with the same * orderings are needed, which is why there are two trees with the same
* contents. * contents.
*/ */
extent_tree_t chunks_szad_dirty; extent_tree_t chunks_szad_cache;
extent_tree_t chunks_ad_dirty; extent_tree_t chunks_ad_cache;
extent_tree_t chunks_szad_mmap; extent_tree_t chunks_szad_mmap;
extent_tree_t chunks_ad_mmap; extent_tree_t chunks_ad_mmap;
extent_tree_t chunks_szad_dss; extent_tree_t chunks_szad_dss;
@ -384,10 +384,10 @@ extern size_t arena_maxclass; /* Max size class for arenas. */
extern unsigned nlclasses; /* Number of large size classes. */ extern unsigned nlclasses; /* Number of large size classes. */
extern unsigned nhclasses; /* Number of huge size classes. */ extern unsigned nhclasses; /* Number of huge size classes. */
void arena_chunk_dirty_maybe_insert(arena_t *arena, extent_node_t *node, void arena_chunk_cache_maybe_insert(arena_t *arena, extent_node_t *node,
bool dirty); bool cache);
void arena_chunk_dirty_maybe_remove(arena_t *arena, extent_node_t *node, void arena_chunk_cache_maybe_remove(arena_t *arena, extent_node_t *node,
bool dirty); bool cache);
extent_node_t *arena_node_alloc(arena_t *arena); extent_node_t *arena_node_alloc(arena_t *arena);
void arena_node_dalloc(arena_t *arena, extent_node_t *node); void arena_node_dalloc(arena_t *arena, extent_node_t *node);
void *arena_chunk_alloc_huge(arena_t *arena, size_t usize, size_t alignment, void *arena_chunk_alloc_huge(arena_t *arena, size_t usize, size_t alignment,

5
include/jemalloc/internal/chunk.h
View File

@ -45,9 +45,10 @@ void *chunk_alloc_arena(chunk_alloc_t *chunk_alloc,
void *chunk_alloc_default(void *new_addr, size_t size, size_t alignment, void *chunk_alloc_default(void *new_addr, size_t size, size_t alignment,
bool *zero, unsigned arena_ind); bool *zero, unsigned arena_ind);
void chunk_record(arena_t *arena, extent_tree_t *chunks_szad, void chunk_record(arena_t *arena, extent_tree_t *chunks_szad,
extent_tree_t *chunks_ad, bool dirty, void *chunk, size_t size); extent_tree_t *chunks_ad, bool cache, void *chunk, size_t size,
bool zeroed);
bool chunk_dalloc_default(void *chunk, size_t size, unsigned arena_ind); bool chunk_dalloc_default(void *chunk, size_t size, unsigned arena_ind);
void chunk_unmap(arena_t *arena, bool dirty, void *chunk, size_t size); void chunk_unmap(arena_t *arena, void *chunk, size_t size, bool zeroed);
bool chunk_boot(void); bool chunk_boot(void);
void chunk_prefork(void); void chunk_prefork(void);
void chunk_postfork_parent(void); void chunk_postfork_parent(void);

27
include/jemalloc/internal/extent.h
View File

@ -33,9 +33,9 @@ struct extent_node_s {
/* Profile counters, used for huge objects. */ /* Profile counters, used for huge objects. */
prof_tctx_t *en_prof_tctx; prof_tctx_t *en_prof_tctx;
/* Linkage for arena's runs_dirty and chunks_dirty rings. */ /* Linkage for arena's runs_dirty and chunks_cache rings. */
qr(extent_node_t) cd_link;
arena_chunk_map_misc_t runs_dirty; arena_chunk_map_misc_t runs_dirty;
qr(extent_node_t) cc_link;
union { union {
/* Linkage for the size/address-ordered tree. */ /* Linkage for the size/address-ordered tree. */
@ -78,6 +78,9 @@ void extent_node_prof_tctx_set(extent_node_t *node, prof_tctx_t *tctx);
void extent_node_init(extent_node_t *node, arena_t *arena, void *addr, void extent_node_init(extent_node_t *node, arena_t *arena, void *addr,
size_t size, bool zeroed); size_t size, bool zeroed);
void extent_node_dirty_linkage_init(extent_node_t *node); void extent_node_dirty_linkage_init(extent_node_t *node);
void extent_node_dirty_insert(extent_node_t *node,
arena_chunk_map_misc_t *runs_dirty, extent_node_t *chunks_dirty);
void extent_node_dirty_remove(extent_node_t *node);
#endif #endif
#if (defined(JEMALLOC_ENABLE_INLINE) || defined(JEMALLOC_EXTENT_C_)) #if (defined(JEMALLOC_ENABLE_INLINE) || defined(JEMALLOC_EXTENT_C_))
@ -183,9 +186,27 @@ JEMALLOC_INLINE void
extent_node_dirty_linkage_init(extent_node_t *node) extent_node_dirty_linkage_init(extent_node_t *node)
{ {
qr_new(node, cd_link);
qr_new(&node->runs_dirty, rd_link); qr_new(&node->runs_dirty, rd_link);
qr_new(node, cc_link);
} }
JEMALLOC_INLINE void
extent_node_dirty_insert(extent_node_t *node,
arena_chunk_map_misc_t *runs_dirty, extent_node_t *chunks_dirty)
{
qr_meld(runs_dirty, &node->runs_dirty, rd_link);
qr_meld(chunks_dirty, node, cc_link);
}
JEMALLOC_INLINE void
extent_node_dirty_remove(extent_node_t *node)
{
qr_remove(&node->runs_dirty, rd_link);
qr_remove(node, cc_link);
}
#endif #endif
#endif /* JEMALLOC_H_INLINES */ #endif /* JEMALLOC_H_INLINES */

6
include/jemalloc/internal/private_symbols.txt
View File

@ -12,9 +12,9 @@ arena_boot
arena_choose arena_choose
arena_choose_hard arena_choose_hard
arena_chunk_alloc_huge arena_chunk_alloc_huge
arena_chunk_cache_maybe_insert
arena_chunk_cache_maybe_remove
arena_chunk_dalloc_huge arena_chunk_dalloc_huge
arena_chunk_dirty_maybe_insert
arena_chunk_dirty_maybe_remove
arena_chunk_ralloc_huge_expand arena_chunk_ralloc_huge_expand
arena_chunk_ralloc_huge_shrink arena_chunk_ralloc_huge_shrink
arena_chunk_ralloc_huge_similar arena_chunk_ralloc_huge_similar
@ -182,7 +182,9 @@ extent_node_addr_get
extent_node_addr_set extent_node_addr_set
extent_node_arena_get extent_node_arena_get
extent_node_arena_set extent_node_arena_set
extent_node_dirty_insert
extent_node_dirty_linkage_init extent_node_dirty_linkage_init
extent_node_dirty_remove
extent_node_init extent_node_init
extent_node_prof_tctx_get extent_node_prof_tctx_get
extent_node_prof_tctx_set extent_node_prof_tctx_set

70
src/arena.c
View File

@ -152,41 +152,24 @@ arena_chunk_dirty_npages(const extent_node_t *node)
return (extent_node_size_get(node) >> LG_PAGE); return (extent_node_size_get(node) >> LG_PAGE);
} }
static void
arena_chunk_dirty_insert(arena_chunk_map_misc_t *runs_dirty,
extent_node_t *chunks_dirty, extent_node_t *node)
{
qr_meld(chunks_dirty, node, cd_link);
qr_meld(runs_dirty, &node->runs_dirty, rd_link);
}
static void
arena_chunk_dirty_remove(extent_node_t *node)
{
qr_remove(node, cd_link);
qr_remove(&node->runs_dirty, rd_link);
}
void void
arena_chunk_dirty_maybe_insert(arena_t *arena, extent_node_t *node, bool dirty) arena_chunk_cache_maybe_insert(arena_t *arena, extent_node_t *node, bool cache)
{ {
if (dirty) { if (cache) {
extent_node_dirty_linkage_init(node); extent_node_dirty_linkage_init(node);
arena_chunk_dirty_insert(&arena->runs_dirty, extent_node_dirty_insert(node, &arena->runs_dirty,
&arena->chunks_dirty, node); &arena->chunks_cache);
arena->ndirty += arena_chunk_dirty_npages(node); arena->ndirty += arena_chunk_dirty_npages(node);
} }
} }
void void
arena_chunk_dirty_maybe_remove(arena_t *arena, extent_node_t *node, bool dirty) arena_chunk_cache_maybe_remove(arena_t *arena, extent_node_t *node, bool dirty)
{ {
if (dirty) { if (dirty) {
arena_chunk_dirty_remove(node); extent_node_dirty_remove(node);
assert(arena->ndirty >= arena_chunk_dirty_npages(node)); assert(arena->ndirty >= arena_chunk_dirty_npages(node));
arena->ndirty -= arena_chunk_dirty_npages(node); arena->ndirty -= arena_chunk_dirty_npages(node);
} }
@ -954,14 +937,14 @@ arena_dirty_count(arena_t *arena)
extent_node_t *chunkselm; extent_node_t *chunkselm;
for (runselm = qr_next(&arena->runs_dirty, rd_link), for (runselm = qr_next(&arena->runs_dirty, rd_link),
chunkselm = qr_next(&arena->chunks_dirty, cd_link); chunkselm = qr_next(&arena->chunks_cache, cc_link);
runselm != &arena->runs_dirty; runselm = qr_next(runselm, runselm != &arena->runs_dirty; runselm = qr_next(runselm,
rd_link)) { rd_link)) {
size_t npages; size_t npages;
if (runselm == &chunkselm->runs_dirty) { if (runselm == &chunkselm->runs_dirty) {
npages = extent_node_size_get(chunkselm) >> LG_PAGE; npages = extent_node_size_get(chunkselm) >> LG_PAGE;
chunkselm = qr_next(chunkselm, cd_link); chunkselm = qr_next(chunkselm, cc_link);
} else { } else {
arena_chunk_t *chunk = (arena_chunk_t arena_chunk_t *chunk = (arena_chunk_t
*)CHUNK_ADDR2BASE(runselm); *)CHUNK_ADDR2BASE(runselm);
@ -1010,7 +993,7 @@ arena_stash_dirty(arena_t *arena, bool all, size_t npurge,
/* Stash at least npurge pages. */ /* Stash at least npurge pages. */
for (runselm = qr_next(&arena->runs_dirty, rd_link), for (runselm = qr_next(&arena->runs_dirty, rd_link),
chunkselm = qr_next(&arena->chunks_dirty, cd_link); chunkselm = qr_next(&arena->chunks_cache, cc_link);
runselm != &arena->runs_dirty; runselm = runselm_next) { runselm != &arena->runs_dirty; runselm = runselm_next) {
size_t npages; size_t npages;
runselm_next = qr_next(runselm, rd_link); runselm_next = qr_next(runselm, rd_link);
@ -1022,7 +1005,7 @@ arena_stash_dirty(arena_t *arena, bool all, size_t npurge,
bool zeroed, zero; bool zeroed, zero;
UNUSED void *chunk; UNUSED void *chunk;
chunkselm_next = qr_next(chunkselm, cd_link); chunkselm_next = qr_next(chunkselm, cc_link);
/* /*
* Cache contents of chunkselm prior to it being * Cache contents of chunkselm prior to it being
* destroyed as a side effect of allocating the chunk. * destroyed as a side effect of allocating the chunk.
@ -1038,19 +1021,16 @@ arena_stash_dirty(arena_t *arena, bool all, size_t npurge,
assert(zero == zeroed); assert(zero == zeroed);
/* /*
* Create a temporary node to link into the ring of * Create a temporary node to link into the ring of
* stashed allocations. * stashed allocations. OOM shouldn't be possible
* because chunk allocation just cached a node.
*/ */
tnode = arena_node_alloc(arena); tnode = arena_node_alloc(arena);
/*
* OOM shouldn't be possible because chunk allocation
* just cached a node.
*/
assert(tnode != NULL); assert(tnode != NULL);
/* Stash. */
extent_node_init(tnode, arena, addr, size, zeroed); extent_node_init(tnode, arena, addr, size, zeroed);
extent_node_dirty_linkage_init(tnode); extent_node_dirty_linkage_init(tnode);
/* Stash. */ extent_node_dirty_insert(tnode, purge_runs_sentinel,
arena_chunk_dirty_insert(purge_runs_sentinel, purge_chunks_sentinel);
purge_chunks_sentinel, tnode);
npages = size >> LG_PAGE; npages = size >> LG_PAGE;
chunkselm = chunkselm_next; chunkselm = chunkselm_next;
} else { } else {
@ -1108,7 +1088,7 @@ arena_purge_stashed(arena_t *arena, arena_chunk_map_misc_t *purge_runs_sentinel,
malloc_mutex_unlock(&arena->lock); malloc_mutex_unlock(&arena->lock);
for (runselm = qr_next(purge_runs_sentinel, rd_link), for (runselm = qr_next(purge_runs_sentinel, rd_link),
chunkselm = qr_next(purge_chunks_sentinel, cd_link); chunkselm = qr_next(purge_chunks_sentinel, cc_link);
runselm != purge_runs_sentinel; runselm = qr_next(runselm, runselm != purge_runs_sentinel; runselm = qr_next(runselm,
rd_link)) { rd_link)) {
size_t npages; size_t npages;
@ -1121,7 +1101,7 @@ arena_purge_stashed(arena_t *arena, arena_chunk_map_misc_t *purge_runs_sentinel,
unzeroed = pages_purge(extent_node_addr_get(chunkselm), unzeroed = pages_purge(extent_node_addr_get(chunkselm),
size); size);
extent_node_zeroed_set(chunkselm, !unzeroed); extent_node_zeroed_set(chunkselm, !unzeroed);
chunkselm = qr_next(chunkselm, cd_link); chunkselm = qr_next(chunkselm, cc_link);
} else { } else {
arena_chunk_t *chunk; arena_chunk_t *chunk;
size_t pageind, run_size, flag_unzeroed, i; size_t pageind, run_size, flag_unzeroed, i;
@ -1178,19 +1158,19 @@ arena_unstash_purged(arena_t *arena,
/* Deallocate runs. */ /* Deallocate runs. */
for (runselm = qr_next(purge_runs_sentinel, rd_link), for (runselm = qr_next(purge_runs_sentinel, rd_link),
chunkselm = qr_next(purge_chunks_sentinel, cd_link); chunkselm = qr_next(purge_chunks_sentinel, cc_link);
runselm != purge_runs_sentinel; runselm = runselm_next) { runselm != purge_runs_sentinel; runselm = runselm_next) {
runselm_next = qr_next(runselm, rd_link); runselm_next = qr_next(runselm, rd_link);
if (runselm == &chunkselm->runs_dirty) { if (runselm == &chunkselm->runs_dirty) {
extent_node_t *chunkselm_next = qr_next(chunkselm, extent_node_t *chunkselm_next = qr_next(chunkselm,
cd_link); cc_link);
bool dirty = !extent_node_zeroed_get(chunkselm);
void *addr = extent_node_addr_get(chunkselm); void *addr = extent_node_addr_get(chunkselm);
size_t size = extent_node_size_get(chunkselm); size_t size = extent_node_size_get(chunkselm);
arena_chunk_dirty_remove(chunkselm); bool zeroed = extent_node_zeroed_get(chunkselm);
extent_node_dirty_remove(chunkselm);
arena_node_dalloc(arena, chunkselm); arena_node_dalloc(arena, chunkselm);
chunkselm = chunkselm_next; chunkselm = chunkselm_next;
chunk_unmap(arena, dirty, addr, size); chunk_unmap(arena, addr, size, zeroed);
} else { } else {
arena_run_t *run = &runselm->run; arena_run_t *run = &runselm->run;
qr_remove(runselm, rd_link); qr_remove(runselm, rd_link);
@ -2612,14 +2592,14 @@ arena_new(unsigned ind)
arena_avail_tree_new(&arena->runs_avail); arena_avail_tree_new(&arena->runs_avail);
qr_new(&arena->runs_dirty, rd_link); qr_new(&arena->runs_dirty, rd_link);
qr_new(&arena->chunks_dirty, cd_link); qr_new(&arena->chunks_cache, cc_link);
ql_new(&arena->huge); ql_new(&arena->huge);
if (malloc_mutex_init(&arena->huge_mtx)) if (malloc_mutex_init(&arena->huge_mtx))
return (NULL); return (NULL);
extent_tree_szad_new(&arena->chunks_szad_dirty); extent_tree_szad_new(&arena->chunks_szad_cache);
extent_tree_ad_new(&arena->chunks_ad_dirty); extent_tree_ad_new(&arena->chunks_ad_cache);
extent_tree_szad_new(&arena->chunks_szad_mmap); extent_tree_szad_new(&arena->chunks_szad_mmap);
extent_tree_ad_new(&arena->chunks_ad_mmap); extent_tree_ad_new(&arena->chunks_ad_mmap);
extent_tree_szad_new(&arena->chunks_szad_dss); extent_tree_szad_new(&arena->chunks_szad_dss);

45
src/chunk.c
View File

@ -64,7 +64,7 @@ chunk_deregister(const void *chunk, const extent_node_t *node)
static void * static void *
chunk_recycle(arena_t *arena, extent_tree_t *chunks_szad, chunk_recycle(arena_t *arena, extent_tree_t *chunks_szad,
extent_tree_t *chunks_ad, bool dirty, void *new_addr, size_t size, extent_tree_t *chunks_ad, bool cache, void *new_addr, size_t size,
size_t alignment, bool *zero) size_t alignment, bool *zero)
{ {
void *ret; void *ret;
@ -100,13 +100,13 @@ chunk_recycle(arena_t *arena, extent_tree_t *chunks_szad,
/* Remove node from the tree. */ /* Remove node from the tree. */
extent_tree_szad_remove(chunks_szad, node); extent_tree_szad_remove(chunks_szad, node);
extent_tree_ad_remove(chunks_ad, node); extent_tree_ad_remove(chunks_ad, node);
arena_chunk_dirty_maybe_remove(arena, node, dirty); arena_chunk_cache_maybe_remove(arena, node, cache);
if (leadsize != 0) { if (leadsize != 0) {
/* Insert the leading space as a smaller chunk. */ /* Insert the leading space as a smaller chunk. */
extent_node_size_set(node, leadsize); extent_node_size_set(node, leadsize);
extent_tree_szad_insert(chunks_szad, node); extent_tree_szad_insert(chunks_szad, node);
extent_tree_ad_insert(chunks_ad, node); extent_tree_ad_insert(chunks_ad, node);
arena_chunk_dirty_maybe_insert(arena, node, dirty); arena_chunk_cache_maybe_insert(arena, node, cache);
node = NULL; node = NULL;
} }
if (trailsize != 0) { if (trailsize != 0) {
@ -116,7 +116,7 @@ chunk_recycle(arena_t *arena, extent_tree_t *chunks_szad,
if (node == NULL) { if (node == NULL) {
malloc_mutex_unlock(&arena->chunks_mtx); malloc_mutex_unlock(&arena->chunks_mtx);
chunk_record(arena, chunks_szad, chunks_ad, chunk_record(arena, chunks_szad, chunks_ad,
dirty, ret, size); cache, ret, size, zeroed);
return (NULL); return (NULL);
} }
} }
@ -124,7 +124,7 @@ chunk_recycle(arena_t *arena, extent_tree_t *chunks_szad,
trailsize, zeroed); trailsize, zeroed);
extent_tree_szad_insert(chunks_szad, node); extent_tree_szad_insert(chunks_szad, node);
extent_tree_ad_insert(chunks_ad, node); extent_tree_ad_insert(chunks_ad, node);
arena_chunk_dirty_maybe_insert(arena, node, dirty); arena_chunk_cache_maybe_insert(arena, node, cache);
node = NULL; node = NULL;
} }
malloc_mutex_unlock(&arena->chunks_mtx); malloc_mutex_unlock(&arena->chunks_mtx);
@ -177,9 +177,9 @@ chunk_alloc_core(arena_t *arena, void *new_addr, size_t size, size_t alignment,
assert(alignment != 0); assert(alignment != 0);
assert((alignment & chunksize_mask) == 0); assert((alignment & chunksize_mask) == 0);
/* dirty. */ /* cache. */
if ((ret = chunk_recycle(arena, &arena->chunks_szad_dirty, if ((ret = chunk_recycle(arena, &arena->chunks_szad_cache,
&arena->chunks_ad_dirty, true, new_addr, size, alignment, zero)) != &arena->chunks_ad_cache, true, new_addr, size, alignment, zero)) !=
NULL) NULL)
return (ret); return (ret);
/* "primary" dss. */ /* "primary" dss. */
@ -276,13 +276,14 @@ chunk_alloc_default(void *new_addr, size_t size, size_t alignment, bool *zero,
void void
chunk_record(arena_t *arena, extent_tree_t *chunks_szad, chunk_record(arena_t *arena, extent_tree_t *chunks_szad,
extent_tree_t *chunks_ad, bool dirty, void *chunk, size_t size) extent_tree_t *chunks_ad, bool cache, void *chunk, size_t size, bool zeroed)
{ {
bool unzeroed; bool unzeroed;
extent_node_t *node, *prev; extent_node_t *node, *prev;
extent_node_t key; extent_node_t key;
unzeroed = dirty ? true : pages_purge(chunk, size); assert(!cache || !zeroed);
unzeroed = cache || !zeroed;
JEMALLOC_VALGRIND_MAKE_MEM_NOACCESS(chunk, size); JEMALLOC_VALGRIND_MAKE_MEM_NOACCESS(chunk, size);
malloc_mutex_lock(&arena->chunks_mtx); malloc_mutex_lock(&arena->chunks_mtx);
@ -298,13 +299,13 @@ chunk_record(arena_t *arena, extent_tree_t *chunks_szad,
* remove/insert from/into chunks_szad. * remove/insert from/into chunks_szad.
*/ */
extent_tree_szad_remove(chunks_szad, node); extent_tree_szad_remove(chunks_szad, node);
arena_chunk_dirty_maybe_remove(arena, node, dirty); arena_chunk_cache_maybe_remove(arena, node, cache);
extent_node_addr_set(node, chunk); extent_node_addr_set(node, chunk);
extent_node_size_set(node, size + extent_node_size_get(node)); extent_node_size_set(node, size + extent_node_size_get(node));
extent_node_zeroed_set(node, extent_node_zeroed_get(node) && extent_node_zeroed_set(node, extent_node_zeroed_get(node) &&
!unzeroed); !unzeroed);
extent_tree_szad_insert(chunks_szad, node); extent_tree_szad_insert(chunks_szad, node);
arena_chunk_dirty_maybe_insert(arena, node, dirty); arena_chunk_cache_maybe_insert(arena, node, cache);
} else { } else {
/* Coalescing forward failed, so insert a new node. */ /* Coalescing forward failed, so insert a new node. */
node = arena_node_alloc(arena); node = arena_node_alloc(arena);
@ -315,14 +316,14 @@ chunk_record(arena_t *arena, extent_tree_t *chunks_szad,
* pages have already been purged, so that this is only * pages have already been purged, so that this is only
* a virtual memory leak. * a virtual memory leak.
*/ */
if (dirty) if (cache)
pages_purge(chunk, size); pages_purge(chunk, size);
goto label_return; goto label_return;
} }
extent_node_init(node, arena, chunk, size, !unzeroed); extent_node_init(node, arena, chunk, size, !unzeroed);
extent_tree_ad_insert(chunks_ad, node); extent_tree_ad_insert(chunks_ad, node);
extent_tree_szad_insert(chunks_szad, node); extent_tree_szad_insert(chunks_szad, node);
arena_chunk_dirty_maybe_insert(arena, node, dirty); arena_chunk_cache_maybe_insert(arena, node, cache);
} }
/* Try to coalesce backward. */ /* Try to coalesce backward. */
@ -336,16 +337,16 @@ chunk_record(arena_t *arena, extent_tree_t *chunks_szad,
*/ */
extent_tree_szad_remove(chunks_szad, prev); extent_tree_szad_remove(chunks_szad, prev);
extent_tree_ad_remove(chunks_ad, prev); extent_tree_ad_remove(chunks_ad, prev);
arena_chunk_dirty_maybe_remove(arena, prev, dirty); arena_chunk_cache_maybe_remove(arena, prev, cache);
extent_tree_szad_remove(chunks_szad, node); extent_tree_szad_remove(chunks_szad, node);
arena_chunk_dirty_maybe_remove(arena, node, dirty); arena_chunk_cache_maybe_remove(arena, node, cache);
extent_node_addr_set(node, extent_node_addr_get(prev)); extent_node_addr_set(node, extent_node_addr_get(prev));
extent_node_size_set(node, extent_node_size_get(prev) + extent_node_size_set(node, extent_node_size_get(prev) +
extent_node_size_get(node)); extent_node_size_get(node));
extent_node_zeroed_set(node, extent_node_zeroed_get(prev) && extent_node_zeroed_set(node, extent_node_zeroed_get(prev) &&
extent_node_zeroed_get(node)); extent_node_zeroed_get(node));
extent_tree_szad_insert(chunks_szad, node); extent_tree_szad_insert(chunks_szad, node);
arena_chunk_dirty_maybe_insert(arena, node, dirty); arena_chunk_cache_maybe_insert(arena, node, cache);
arena_node_dalloc(arena, prev); arena_node_dalloc(arena, prev);
} }
@ -363,8 +364,8 @@ chunk_cache(arena_t *arena, void *chunk, size_t size)
assert(size != 0); assert(size != 0);
assert((size & chunksize_mask) == 0); assert((size & chunksize_mask) == 0);
chunk_record(arena, &arena->chunks_szad_dirty, &arena->chunks_ad_dirty, chunk_record(arena, &arena->chunks_szad_cache, &arena->chunks_ad_cache,
true, chunk, size); true, chunk, size, false);
} }
/* Default arena chunk deallocation routine in the absence of user override. */ /* Default arena chunk deallocation routine in the absence of user override. */
@ -377,7 +378,7 @@ chunk_dalloc_default(void *chunk, size_t size, unsigned arena_ind)
} }
void void
chunk_unmap(arena_t *arena, bool dirty, void *chunk, size_t size) chunk_unmap(arena_t *arena, void *chunk, size_t size, bool zeroed)
{ {
assert(chunk != NULL); assert(chunk != NULL);
@ -387,10 +388,10 @@ chunk_unmap(arena_t *arena, bool dirty, void *chunk, size_t size)
if (have_dss && chunk_in_dss(chunk)) { if (have_dss && chunk_in_dss(chunk)) {
chunk_record(arena, &arena->chunks_szad_dss, chunk_record(arena, &arena->chunks_szad_dss,
&arena->chunks_ad_dss, dirty, chunk, size); &arena->chunks_ad_dss, false, chunk, size, zeroed);
} else if (chunk_dalloc_mmap(chunk, size)) { } else if (chunk_dalloc_mmap(chunk, size)) {
chunk_record(arena, &arena->chunks_szad_mmap, chunk_record(arena, &arena->chunks_szad_mmap,
&arena->chunks_ad_mmap, dirty, chunk, size); &arena->chunks_ad_mmap, false, chunk, size, zeroed);
} }
} }

2
src/chunk_dss.c
View File

@ -137,7 +137,7 @@ chunk_alloc_dss(arena_t *arena, void *new_addr, size_t size, size_t alignment,
chunk_record(arena, chunk_record(arena,
&arena->chunks_szad_dss, &arena->chunks_szad_dss,
&arena->chunks_ad_dss, false, cpad, &arena->chunks_ad_dss, false, cpad,
cpad_size); cpad_size, false);
} }
if (*zero) { if (*zero) {
JEMALLOC_VALGRIND_MAKE_MEM_UNDEFINED( JEMALLOC_VALGRIND_MAKE_MEM_UNDEFINED(