project-base/server-skynet-source-3rd-jemalloc
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Implement the arena.<i>.reset mallctl.

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This makes it possible to discard all of an arena's allocations in a
single operation.

This resolves #146.
This commit is contained in:
Jason Evans
2016-04-22 14:37:17 -07:00
parent 66cd953514
commit 19ff2cefba
8 changed files with 411 additions and 39 deletions
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5
include/jemalloc/internal/arena.h
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@@ -330,6 +330,10 @@ struct arena_s {
dss_prec_t dss_prec;
/* Extant arena chunks. */
ql_head(extent_node_t) achunks;
/*
* In order to avoid rapid chunk allocation/deallocation when an arena
* oscillates right on the cusp of needing a new chunk, cache the most
@@ -533,6 +537,7 @@ ssize_t arena_decay_time_get(tsd_t *tsd, arena_t *arena);
bool arena_decay_time_set(tsd_t *tsd, arena_t *arena, ssize_t decay_time);
void arena_purge(tsd_t *tsd, arena_t *arena, bool all);
void arena_maybe_purge(tsd_t *tsd, arena_t *arena);
void arena_reset(tsd_t *tsd, arena_t *arena);
void arena_tcache_fill_small(tsd_t *tsd, arena_t *arena, tcache_bin_t *tbin,
szind_t binind, uint64_t prof_accumbytes);
void arena_alloc_junk_small(void *ptr, arena_bin_info_t *bin_info,

2
include/jemalloc/internal/extent.h
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@@ -48,7 +48,7 @@ struct extent_node_s {
/* Linkage for the size/address-ordered tree. */
rb_node(extent_node_t) szad_link;
/* Linkage for arena's huge and node_cache lists. */
/* Linkage for arena's achunks, huge, and node_cache lists. */
ql_elm(extent_node_t) ql_link;
};

1
include/jemalloc/internal/private_symbols.txt
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@@ -100,6 +100,7 @@ arena_ralloc_junk_large
arena_ralloc_no_move
arena_rd_to_miscelm
arena_redzone_corruption
arena_reset
arena_run_regind
arena_run_to_miscelm
arena_salloc