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Diffstat (limited to 'deps/jemalloc/include/jemalloc/internal/mutex_prof.h')
| -rw-r--r-- | deps/jemalloc/include/jemalloc/internal/mutex_prof.h | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/deps/jemalloc/include/jemalloc/internal/mutex_prof.h b/deps/jemalloc/include/jemalloc/internal/mutex_prof.h new file mode 100644 index 0000000..4a526a5 --- /dev/null +++ b/deps/jemalloc/include/jemalloc/internal/mutex_prof.h @@ -0,0 +1,117 @@ +#ifndef JEMALLOC_INTERNAL_MUTEX_PROF_H +#define JEMALLOC_INTERNAL_MUTEX_PROF_H + +#include "jemalloc/internal/atomic.h" +#include "jemalloc/internal/nstime.h" +#include "jemalloc/internal/tsd_types.h" + +#define MUTEX_PROF_GLOBAL_MUTEXES \ + OP(background_thread) \ + OP(max_per_bg_thd) \ + OP(ctl) \ + OP(prof) \ + OP(prof_thds_data) \ + OP(prof_dump) \ + OP(prof_recent_alloc) \ + OP(prof_recent_dump) \ + OP(prof_stats) + +typedef enum { +#define OP(mtx) global_prof_mutex_##mtx, + MUTEX_PROF_GLOBAL_MUTEXES +#undef OP + mutex_prof_num_global_mutexes +} mutex_prof_global_ind_t; + +#define MUTEX_PROF_ARENA_MUTEXES \ + OP(large) \ + OP(extent_avail) \ + OP(extents_dirty) \ + OP(extents_muzzy) \ + OP(extents_retained) \ + OP(decay_dirty) \ + OP(decay_muzzy) \ + OP(base) \ + OP(tcache_list) \ + OP(hpa_shard) \ + OP(hpa_shard_grow) \ + OP(hpa_sec) + +typedef enum { +#define OP(mtx) arena_prof_mutex_##mtx, + MUTEX_PROF_ARENA_MUTEXES +#undef OP + mutex_prof_num_arena_mutexes +} mutex_prof_arena_ind_t; + +/* + * The forth parameter is a boolean value that is true for derived rate counters + * and false for real ones. + */ +#define MUTEX_PROF_UINT64_COUNTERS \ + OP(num_ops, uint64_t, "n_lock_ops", false, num_ops) \ + OP(num_ops_ps, uint64_t, "(#/sec)", true, num_ops) \ + OP(num_wait, uint64_t, "n_waiting", false, num_wait) \ + OP(num_wait_ps, uint64_t, "(#/sec)", true, num_wait) \ + OP(num_spin_acq, uint64_t, "n_spin_acq", false, num_spin_acq) \ + OP(num_spin_acq_ps, uint64_t, "(#/sec)", true, num_spin_acq) \ + OP(num_owner_switch, uint64_t, "n_owner_switch", false, num_owner_switch) \ + OP(num_owner_switch_ps, uint64_t, "(#/sec)", true, num_owner_switch) \ + OP(total_wait_time, uint64_t, "total_wait_ns", false, total_wait_time) \ + OP(total_wait_time_ps, uint64_t, "(#/sec)", true, total_wait_time) \ + OP(max_wait_time, uint64_t, "max_wait_ns", false, max_wait_time) + +#define MUTEX_PROF_UINT32_COUNTERS \ + OP(max_num_thds, uint32_t, "max_n_thds", false, max_num_thds) + +#define MUTEX_PROF_COUNTERS \ + MUTEX_PROF_UINT64_COUNTERS \ + MUTEX_PROF_UINT32_COUNTERS + +#define OP(counter, type, human, derived, base_counter) mutex_counter_##counter, + +#define COUNTER_ENUM(counter_list, t) \ + typedef enum { \ + counter_list \ + mutex_prof_num_##t##_counters \ + } mutex_prof_##t##_counter_ind_t; + +COUNTER_ENUM(MUTEX_PROF_UINT64_COUNTERS, uint64_t) +COUNTER_ENUM(MUTEX_PROF_UINT32_COUNTERS, uint32_t) + +#undef COUNTER_ENUM +#undef OP + +typedef struct { + /* + * Counters touched on the slow path, i.e. when there is lock + * contention. We update them once we have the lock. + */ + /* Total time (in nano seconds) spent waiting on this mutex. */ + nstime_t tot_wait_time; + /* Max time (in nano seconds) spent on a single lock operation. */ + nstime_t max_wait_time; + /* # of times have to wait for this mutex (after spinning). */ + uint64_t n_wait_times; + /* # of times acquired the mutex through local spinning. */ + uint64_t n_spin_acquired; + /* Max # of threads waiting for the mutex at the same time. */ + uint32_t max_n_thds; + /* Current # of threads waiting on the lock. Atomic synced. */ + atomic_u32_t n_waiting_thds; + + /* + * Data touched on the fast path. These are modified right after we + * grab the lock, so it's placed closest to the end (i.e. right before + * the lock) so that we have a higher chance of them being on the same + * cacheline. + */ + /* # of times the mutex holder is different than the previous one. */ + uint64_t n_owner_switches; + /* Previous mutex holder, to facilitate n_owner_switches. */ + tsdn_t *prev_owner; + /* # of lock() operations in total. */ + uint64_t n_lock_ops; +} mutex_prof_data_t; + +#endif /* JEMALLOC_INTERNAL_MUTEX_PROF_H */ |