ee41ad409a
Extend per arena unused dirty page purging to manage unused dirty chunks in aaddtion to unused dirty runs. Rather than immediately unmapping deallocated chunks (or purging them in the --disable-munmap case), store them in a separate set of trees, chunks_[sz]ad_dirty. Preferrentially allocate dirty chunks. When excessive unused dirty pages accumulate, purge runs and chunks in ingegrated LRU order (and unmap chunks in the --enable-munmap case). Refactor extent_node_t to provide accessor functions.
176 lines
4.0 KiB
C
176 lines
4.0 KiB
C
/******************************************************************************/
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#ifdef JEMALLOC_H_TYPES
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typedef struct extent_node_s extent_node_t;
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#endif /* JEMALLOC_H_TYPES */
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/******************************************************************************/
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#ifdef JEMALLOC_H_STRUCTS
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/* Tree of extents. Use accessor functions for en_* fields. */
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struct extent_node_s {
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/* Arena from which this extent came, if any. */
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arena_t *en_arena;
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/* Pointer to the extent that this tree node is responsible for. */
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void *en_addr;
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/* Total region size. */
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size_t en_size;
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/*
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* The zeroed flag is used by chunk recycling code to track whether
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* memory is zero-filled.
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*/
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bool en_zeroed;
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/*
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* The achunk flag is used to validate that huge allocation lookups
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* don't return arena chunks.
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*/
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bool en_achunk;
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union {
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/* Profile counters, used for huge objects. */
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prof_tctx_t *en_prof_tctx;
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struct {
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/*
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* Linkage for arena's runs_dirty and chunks_dirty
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* rings.
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*/
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qr(extent_node_t) cd_link;
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arena_chunk_map_misc_t runs_dirty;
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};
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};
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union {
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/* Linkage for the size/address-ordered tree. */
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rb_node(extent_node_t) szad_link;
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/* Linkage for arena's huge and node_cache lists. */
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ql_elm(extent_node_t) ql_link;
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};
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/* Linkage for the address-ordered tree. */
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rb_node(extent_node_t) ad_link;
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};
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typedef rb_tree(extent_node_t) extent_tree_t;
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#endif /* JEMALLOC_H_STRUCTS */
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/******************************************************************************/
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#ifdef JEMALLOC_H_EXTERNS
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rb_proto(, extent_tree_szad_, extent_tree_t, extent_node_t)
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rb_proto(, extent_tree_ad_, extent_tree_t, extent_node_t)
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#endif /* JEMALLOC_H_EXTERNS */
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/******************************************************************************/
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#ifdef JEMALLOC_H_INLINES
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#ifndef JEMALLOC_ENABLE_INLINE
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arena_t *extent_node_arena_get(const extent_node_t *node);
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void *extent_node_addr_get(const extent_node_t *node);
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size_t extent_node_size_get(const extent_node_t *node);
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bool extent_node_zeroed_get(const extent_node_t *node);
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bool extent_node_achunk_get(const extent_node_t *node);
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prof_tctx_t *extent_node_prof_tctx_get(const extent_node_t *node);
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void extent_node_arena_set(extent_node_t *node, arena_t *arena);
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void extent_node_addr_set(extent_node_t *node, void *addr);
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void extent_node_size_set(extent_node_t *node, size_t size);
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void extent_node_zeroed_set(extent_node_t *node, bool zeroed);
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void extent_node_achunk_set(extent_node_t *node, bool achunk);
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void extent_node_prof_tctx_set(extent_node_t *node, prof_tctx_t *tctx);
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#endif
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#if (defined(JEMALLOC_ENABLE_INLINE) || defined(JEMALLOC_EXTENT_C_))
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JEMALLOC_INLINE arena_t *
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extent_node_arena_get(const extent_node_t *node)
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{
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return (node->en_arena);
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}
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JEMALLOC_INLINE void *
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extent_node_addr_get(const extent_node_t *node)
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{
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return (node->en_addr);
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}
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JEMALLOC_INLINE size_t
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extent_node_size_get(const extent_node_t *node)
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{
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return (node->en_size);
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}
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JEMALLOC_INLINE bool
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extent_node_zeroed_get(const extent_node_t *node)
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{
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return (node->en_zeroed);
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}
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JEMALLOC_INLINE bool
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extent_node_achunk_get(const extent_node_t *node)
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{
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return (node->en_achunk);
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}
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JEMALLOC_INLINE prof_tctx_t *
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extent_node_prof_tctx_get(const extent_node_t *node)
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{
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return (node->en_prof_tctx);
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}
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JEMALLOC_INLINE void
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extent_node_arena_set(extent_node_t *node, arena_t *arena)
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{
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node->en_arena = arena;
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}
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JEMALLOC_INLINE void
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extent_node_addr_set(extent_node_t *node, void *addr)
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{
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node->en_addr = addr;
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}
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JEMALLOC_INLINE void
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extent_node_size_set(extent_node_t *node, size_t size)
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{
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node->en_size = size;
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}
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JEMALLOC_INLINE void
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extent_node_zeroed_set(extent_node_t *node, bool zeroed)
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{
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node->en_zeroed = zeroed;
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}
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JEMALLOC_INLINE void
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extent_node_achunk_set(extent_node_t *node, bool achunk)
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{
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node->en_achunk = achunk;
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}
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JEMALLOC_INLINE void
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extent_node_prof_tctx_set(extent_node_t *node, prof_tctx_t *tctx)
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{
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node->en_prof_tctx = tctx;
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}
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#endif
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#endif /* JEMALLOC_H_INLINES */
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/******************************************************************************/
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