85 lines
2.5 KiB
C
85 lines
2.5 KiB
C
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#ifndef JEMALLOC_INTERNAL_MUTEX_PROF_H
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#define JEMALLOC_INTERNAL_MUTEX_PROF_H
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#include "jemalloc/internal/atomic.h"
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#include "jemalloc/internal/nstime.h"
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#define MUTEX_PROF_GLOBAL_MUTEXES \
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OP(ctl) \
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OP(prof)
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typedef enum {
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#define OP(mtx) global_prof_mutex_##mtx,
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MUTEX_PROF_GLOBAL_MUTEXES
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#undef OP
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mutex_prof_num_global_mutexes
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} mutex_prof_global_ind_t;
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#define MUTEX_PROF_ARENA_MUTEXES \
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OP(large) \
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OP(extent_avail) \
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OP(extents_dirty) \
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OP(extents_muzzy) \
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OP(extents_retained) \
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OP(decay_dirty) \
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OP(decay_muzzy) \
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OP(base) \
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OP(tcache_list)
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typedef enum {
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#define OP(mtx) arena_prof_mutex_##mtx,
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MUTEX_PROF_ARENA_MUTEXES
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#undef OP
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mutex_prof_num_arena_mutexes
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} mutex_prof_arena_ind_t;
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#define MUTEX_PROF_COUNTERS \
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OP(num_ops, uint64_t) \
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OP(num_wait, uint64_t) \
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OP(num_spin_acq, uint64_t) \
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OP(num_owner_switch, uint64_t) \
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OP(total_wait_time, uint64_t) \
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OP(max_wait_time, uint64_t) \
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OP(max_num_thds, uint32_t)
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typedef enum {
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#define OP(counter, type) mutex_counter_##counter,
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MUTEX_PROF_COUNTERS
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#undef OP
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mutex_prof_num_counters
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} mutex_prof_counter_ind_t;
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typedef struct mutex_prof_data_s {
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/*
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* Counters touched on the slow path, i.e. when there is lock
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* contention. We update them once we have the lock.
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*/
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/* Total time (in nano seconds) spent waiting on this mutex. */
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nstime_t tot_wait_time;
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/* Max time (in nano seconds) spent on a single lock operation. */
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nstime_t max_wait_time;
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/* # of times have to wait for this mutex (after spinning). */
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uint64_t n_wait_times;
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/* # of times acquired the mutex through local spinning. */
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uint64_t n_spin_acquired;
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/* Max # of threads waiting for the mutex at the same time. */
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uint32_t max_n_thds;
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/* Current # of threads waiting on the lock. Atomic synced. */
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atomic_u32_t n_waiting_thds;
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/*
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* Data touched on the fast path. These are modified right after we
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* grab the lock, so it's placed closest to the end (i.e. right before
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* the lock) so that we have a higher chance of them being on the same
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* cacheline.
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*/
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/* # of times the mutex holder is different than the previous one. */
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uint64_t n_owner_switches;
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/* Previous mutex holder, to facilitate n_owner_switches. */
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tsdn_t *prev_owner;
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/* # of lock() operations in total. */
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uint64_t n_lock_ops;
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} mutex_prof_data_t;
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#endif /* JEMALLOC_INTERNAL_MUTEX_PROF_H */
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