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Diffstat (limited to 'deps/jemalloc/include/jemalloc/internal/arena_structs_b.h')
| -rw-r--r-- | deps/jemalloc/include/jemalloc/internal/arena_structs_b.h | 229 |
1 files changed, 0 insertions, 229 deletions
diff --git a/deps/jemalloc/include/jemalloc/internal/arena_structs_b.h b/deps/jemalloc/include/jemalloc/internal/arena_structs_b.h deleted file mode 100644 index 38bc95962..000000000 --- a/deps/jemalloc/include/jemalloc/internal/arena_structs_b.h +++ /dev/null @@ -1,229 +0,0 @@ -#ifndef JEMALLOC_INTERNAL_ARENA_STRUCTS_B_H -#define JEMALLOC_INTERNAL_ARENA_STRUCTS_B_H - -#include "jemalloc/internal/arena_stats.h" -#include "jemalloc/internal/atomic.h" -#include "jemalloc/internal/bin.h" -#include "jemalloc/internal/bitmap.h" -#include "jemalloc/internal/extent_dss.h" -#include "jemalloc/internal/jemalloc_internal_types.h" -#include "jemalloc/internal/mutex.h" -#include "jemalloc/internal/nstime.h" -#include "jemalloc/internal/ql.h" -#include "jemalloc/internal/size_classes.h" -#include "jemalloc/internal/smoothstep.h" -#include "jemalloc/internal/ticker.h" - -struct arena_decay_s { - /* Synchronizes all non-atomic fields. */ - malloc_mutex_t mtx; - /* - * True if a thread is currently purging the extents associated with - * this decay structure. - */ - bool purging; - /* - * Approximate time in milliseconds from the creation of a set of unused - * dirty pages until an equivalent set of unused dirty pages is purged - * and/or reused. - */ - atomic_zd_t time_ms; - /* time / SMOOTHSTEP_NSTEPS. */ - nstime_t interval; - /* - * Time at which the current decay interval logically started. We do - * not actually advance to a new epoch until sometime after it starts - * because of scheduling and computation delays, and it is even possible - * to completely skip epochs. In all cases, during epoch advancement we - * merge all relevant activity into the most recently recorded epoch. - */ - nstime_t epoch; - /* Deadline randomness generator. */ - uint64_t jitter_state; - /* - * Deadline for current epoch. This is the sum of interval and per - * epoch jitter which is a uniform random variable in [0..interval). - * Epochs always advance by precise multiples of interval, but we - * randomize the deadline to reduce the likelihood of arenas purging in - * lockstep. - */ - nstime_t deadline; - /* - * Number of unpurged pages at beginning of current epoch. During epoch - * advancement we use the delta between arena->decay_*.nunpurged and - * extents_npages_get(&arena->extents_*) to determine how many dirty - * pages, if any, were generated. - */ - size_t nunpurged; - /* - * Trailing log of how many unused dirty pages were generated during - * each of the past SMOOTHSTEP_NSTEPS decay epochs, where the last - * element is the most recent epoch. Corresponding epoch times are - * relative to epoch. - */ - size_t backlog[SMOOTHSTEP_NSTEPS]; - - /* - * Pointer to associated stats. These stats are embedded directly in - * the arena's stats due to how stats structures are shared between the - * arena and ctl code. - * - * Synchronization: Same as associated arena's stats field. */ - arena_stats_decay_t *stats; - /* Peak number of pages in associated extents. Used for debug only. */ - uint64_t ceil_npages; -}; - -struct arena_s { - /* - * Number of threads currently assigned to this arena. Each thread has - * two distinct assignments, one for application-serving allocation, and - * the other for internal metadata allocation. Internal metadata must - * not be allocated from arenas explicitly created via the arenas.create - * mallctl, because the arena.<i>.reset mallctl indiscriminately - * discards all allocations for the affected arena. - * - * 0: Application allocation. - * 1: Internal metadata allocation. - * - * Synchronization: atomic. - */ - atomic_u_t nthreads[2]; - - /* - * When percpu_arena is enabled, to amortize the cost of reading / - * updating the current CPU id, track the most recent thread accessing - * this arena, and only read CPU if there is a mismatch. - */ - tsdn_t *last_thd; - - /* Synchronization: internal. */ - arena_stats_t stats; - - /* - * Lists of tcaches and cache_bin_array_descriptors for extant threads - * associated with this arena. Stats from these are merged - * incrementally, and at exit if opt_stats_print is enabled. - * - * Synchronization: tcache_ql_mtx. - */ - ql_head(tcache_t) tcache_ql; - ql_head(cache_bin_array_descriptor_t) cache_bin_array_descriptor_ql; - malloc_mutex_t tcache_ql_mtx; - - /* Synchronization: internal. */ - prof_accum_t prof_accum; - uint64_t prof_accumbytes; - - /* - * PRNG state for cache index randomization of large allocation base - * pointers. - * - * Synchronization: atomic. - */ - atomic_zu_t offset_state; - - /* - * Extent serial number generator state. - * - * Synchronization: atomic. - */ - atomic_zu_t extent_sn_next; - - /* - * Represents a dss_prec_t, but atomically. - * - * Synchronization: atomic. - */ - atomic_u_t dss_prec; - - /* - * Number of pages in active extents. - * - * Synchronization: atomic. - */ - atomic_zu_t nactive; - - /* - * Extant large allocations. - * - * Synchronization: large_mtx. - */ - extent_list_t large; - /* Synchronizes all large allocation/update/deallocation. */ - malloc_mutex_t large_mtx; - - /* - * Collections of extents that were previously allocated. These are - * used when allocating extents, in an attempt to re-use address space. - * - * Synchronization: internal. - */ - extents_t extents_dirty; - extents_t extents_muzzy; - extents_t extents_retained; - - /* - * Decay-based purging state, responsible for scheduling extent state - * transitions. - * - * Synchronization: internal. - */ - arena_decay_t decay_dirty; /* dirty --> muzzy */ - arena_decay_t decay_muzzy; /* muzzy --> retained */ - - /* - * Next extent size class in a growing series to use when satisfying a - * request via the extent hooks (only if opt_retain). This limits the - * number of disjoint virtual memory ranges so that extent merging can - * be effective even if multiple arenas' extent allocation requests are - * highly interleaved. - * - * retain_grow_limit is the max allowed size ind to expand (unless the - * required size is greater). Default is no limit, and controlled - * through mallctl only. - * - * Synchronization: extent_grow_mtx - */ - pszind_t extent_grow_next; - pszind_t retain_grow_limit; - malloc_mutex_t extent_grow_mtx; - - /* - * Available extent structures that were allocated via - * base_alloc_extent(). - * - * Synchronization: extent_avail_mtx. - */ - extent_tree_t extent_avail; - malloc_mutex_t extent_avail_mtx; - - /* - * bins is used to store heaps of free regions. - * - * Synchronization: internal. - */ - bin_t bins[NBINS]; - - /* - * Base allocator, from which arena metadata are allocated. - * - * Synchronization: internal. - */ - base_t *base; - /* Used to determine uptime. Read-only after initialization. */ - nstime_t create_time; -}; - -/* Used in conjunction with tsd for fast arena-related context lookup. */ -struct arena_tdata_s { - ticker_t decay_ticker; -}; - -/* Used to pass rtree lookup context down the path. */ -struct alloc_ctx_s { - szind_t szind; - bool slab; -}; - -#endif /* JEMALLOC_INTERNAL_ARENA_STRUCTS_B_H */ |