| #ifndef JEMALLOC_INTERNAL_TCACHE_STRUCTS_H |
| #define JEMALLOC_INTERNAL_TCACHE_STRUCTS_H |
| |
| #include "jemalloc/internal/ql.h" |
| #include "jemalloc/internal/size_classes.h" |
| #include "jemalloc/internal/cache_bin.h" |
| #include "jemalloc/internal/ticker.h" |
| |
| struct tcache_s { |
| /* |
| * To minimize our cache-footprint, we put the frequently accessed data |
| * together at the start of this struct. |
| */ |
| |
| /* Cleared after arena_prof_accum(). */ |
| uint64_t prof_accumbytes; |
| /* Drives incremental GC. */ |
| ticker_t gc_ticker; |
| /* |
| * The pointer stacks associated with bins follow as a contiguous array. |
| * During tcache initialization, the avail pointer in each element of |
| * tbins is initialized to point to the proper offset within this array. |
| */ |
| cache_bin_t bins_small[NBINS]; |
| |
| /* |
| * This data is less hot; we can be a little less careful with our |
| * footprint here. |
| */ |
| /* Lets us track all the tcaches in an arena. */ |
| ql_elm(tcache_t) link; |
| /* |
| * The descriptor lets the arena find our cache bins without seeing the |
| * tcache definition. This enables arenas to aggregate stats across |
| * tcaches without having a tcache dependency. |
| */ |
| cache_bin_array_descriptor_t cache_bin_array_descriptor; |
| |
| /* The arena this tcache is associated with. */ |
| arena_t *arena; |
| /* Next bin to GC. */ |
| szind_t next_gc_bin; |
| /* For small bins, fill (ncached_max >> lg_fill_div). */ |
| uint8_t lg_fill_div[NBINS]; |
| /* |
| * We put the cache bins for large size classes at the end of the |
| * struct, since some of them might not get used. This might end up |
| * letting us avoid touching an extra page if we don't have to. |
| */ |
| cache_bin_t bins_large[NSIZES-NBINS]; |
| }; |
| |
| /* Linkage for list of available (previously used) explicit tcache IDs. */ |
| struct tcaches_s { |
| union { |
| tcache_t *tcache; |
| tcaches_t *next; |
| }; |
| }; |
| |
| #endif /* JEMALLOC_INTERNAL_TCACHE_STRUCTS_H */ |