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Add arena lock stats output.

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This commit is contained in:
Qi Wang 2017-03-10 12:14:05 -08:00 committed by Qi Wang
parent a4f176af57
commit 0fb5c0e853
9 changed files with 269 additions and 51 deletions
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8
include/jemalloc/internal/ctl_externs.h
View File

@ -1,6 +1,14 @@
#ifndef JEMALLOC_INTERNAL_CTL_EXTERNS_H
#define JEMALLOC_INTERNAL_CTL_EXTERNS_H
/* Maximum ctl tree depth. */
#define CTL_MAX_DEPTH 7
#define NUM_ARENA_PROF_LOCKS 6
#define NUM_LOCK_PROF_COUNTERS 7
const char *arena_lock_names[NUM_ARENA_PROF_LOCKS];
const char *lock_counter_names[NUM_LOCK_PROF_COUNTERS];
int ctl_byname(tsd_t *tsd, const char *name, void *oldp, size_t *oldlenp,
void *newp, size_t newlen);
int ctl_nametomib(tsdn_t *tsdn, const char *name, size_t *mibp,

6
include/jemalloc/internal/mutex_inlines.h
View File

@ -29,9 +29,9 @@ malloc_mutex_trylock(malloc_mutex_t *mutex) {
/* Aggregate lock prof data. */
JEMALLOC_INLINE void
malloc_lock_prof_merge(lock_prof_data_t *sum, lock_prof_data_t *data) {
nstime_add(&sum->tot_wait_time, &data->tot_wait_time);
if (nstime_compare(&data->max_wait_time, &sum->max_wait_time)) {
nstime_copy(&sum->max_wait_time, &data->max_wait_time);
sum->tot_wait_time += data->tot_wait_time;
if (data->max_wait_time > sum->max_wait_time) {
sum->max_wait_time = data->max_wait_time;
}
sum->n_wait_times += data->n_wait_times;
sum->n_spin_acquired += data->n_spin_acquired;

8
include/jemalloc/internal/mutex_structs.h
View File

@ -6,10 +6,10 @@ struct lock_prof_data_s {
* Counters touched on the slow path, i.e. when there is lock
* contention. We update them once we have the lock.
*/
/* Total time spent waiting on this lock. */
nstime_t tot_wait_time;
/* Max time spent on a single lock operation. */
nstime_t max_wait_time;
/* Total time (in nano seconds) spent waiting on this lock. */
uint64_t tot_wait_time;
/* Max time (in nano seconds) spent on a single lock operation. */
uint64_t max_wait_time;
/* # of times have to wait for this lock (after spinning). */
uint64_t n_wait_times;
/* # of times acquired the lock through local spinning. */

3
include/jemalloc/internal/mutex_types.h
View File

@ -28,8 +28,7 @@ typedef struct malloc_mutex_s malloc_mutex_t;
# define MALLOC_MUTEX_TRYLOCK(m) (pthread_mutex_trylock(&(m)->lock) != 0)
#endif
#define LOCK_PROF_DATA_INITIALIZER \
{NSTIME_ZERO_INITIALIZER, NSTIME_ZERO_INITIALIZER, 0, 0, 0, 0, 0, NULL, 0}
#define LOCK_PROF_DATA_INITIALIZER {0, 0, 0, 0, 0, 0, 0, NULL, 0}
#ifdef _WIN32
# define MALLOC_MUTEX_INITIALIZER

7
include/jemalloc/internal/stats_structs.h
View File

@ -124,6 +124,13 @@ struct arena_stats_s {
/* Number of bytes cached in tcache associated with this arena. */
atomic_zu_t tcache_bytes; /* Derived. */
lock_prof_data_t large_mtx_data;
lock_prof_data_t extent_freelist_mtx_data;
lock_prof_data_t extents_cached_mtx_data;
lock_prof_data_t extents_retained_mtx_data;
lock_prof_data_t decay_mtx_data;
lock_prof_data_t tcache_mtx_data;
/* One element for each large size class. */
malloc_large_stats_t lstats[NSIZES - NBINS];
};

18
src/arena.c
View File

@ -292,9 +292,27 @@ arena_stats_merge(tsdn_t *tsdn, arena_t *arena, unsigned *nthreads,
tbin->ncached * index2size(i));
}
}
malloc_lock_prof_read(tsdn, &astats->tcache_mtx_data,
&arena->tcache_ql_mtx);
malloc_mutex_unlock(tsdn, &arena->tcache_ql_mtx);
}
#define READ_ARENA_MUTEX_PROF_DATA(mtx, data) \
malloc_mutex_lock(tsdn, &arena->mtx); \
malloc_lock_prof_read(tsdn, &astats->data, &arena->mtx); \
malloc_mutex_unlock(tsdn, &arena->mtx);
/* Gather per arena mutex profiling data. */
READ_ARENA_MUTEX_PROF_DATA(large_mtx, large_mtx_data)
READ_ARENA_MUTEX_PROF_DATA(extent_freelist_mtx,
extent_freelist_mtx_data)
READ_ARENA_MUTEX_PROF_DATA(extents_cached.mtx,
extents_cached_mtx_data)
READ_ARENA_MUTEX_PROF_DATA(extents_retained.mtx,
extents_retained_mtx_data)
READ_ARENA_MUTEX_PROF_DATA(decay.mtx, decay_mtx_data)
#undef READ_ARENA_MUTEX_PROF_DATA
for (szind_t i = 0; i < NBINS; i++) {
arena_bin_t *bin = &arena->bins[i];

142
src/ctl.c
View File

@ -13,6 +13,24 @@ static bool ctl_initialized;
static ctl_stats_t *ctl_stats;
static ctl_arenas_t *ctl_arenas;
const char *arena_lock_names[NUM_ARENA_PROF_LOCKS] = {
"large",
"extent_freelist",
"extents_cached",
"extents_retained",
"decay",
"tcache"
};
const char *lock_counter_names[NUM_LOCK_PROF_COUNTERS] = {
"num_ops",
"num_wait",
"num_spin_acq",
"num_owner_switch",
"total_wait_time",
"max_wait_time",
"max_num_thds"
};
/******************************************************************************/
/* Helpers for named and indexed nodes. */
@ -145,7 +163,6 @@ CTL_PROTO(stats_arenas_i_bins_j_nflushes)
CTL_PROTO(stats_arenas_i_bins_j_nslabs)
CTL_PROTO(stats_arenas_i_bins_j_nreslabs)
CTL_PROTO(stats_arenas_i_bins_j_curslabs)
CTL_PROTO(stats_arenas_i_bins_j_lock_data)
INDEX_PROTO(stats_arenas_i_bins_j)
CTL_PROTO(stats_arenas_i_lextents_j_nmalloc)
CTL_PROTO(stats_arenas_i_lextents_j_ndalloc)
@ -179,12 +196,30 @@ CTL_PROTO(stats_resident)
CTL_PROTO(stats_mapped)
CTL_PROTO(stats_retained)
#define STATS_LOCKS_CTL_PROTO_GEN(l, n) \
CTL_PROTO(stats_arenas_i_##l##_##n##_num_ops) \
CTL_PROTO(stats_arenas_i_##l##_##n##_num_wait) \
CTL_PROTO(stats_arenas_i_##l##_##n##_num_spin_acq) \
CTL_PROTO(stats_arenas_i_##l##_##n##_num_owner_switch) \
CTL_PROTO(stats_arenas_i_##l##_##n##_total_wait_time) \
CTL_PROTO(stats_arenas_i_##l##_##n##_max_wait_time) \
CTL_PROTO(stats_arenas_i_##l##_##n##_max_num_thds)
#define ARENA_LOCKS_CTL_PROTO_GEN(n) STATS_LOCKS_CTL_PROTO_GEN(locks, n)
ARENA_LOCKS_CTL_PROTO_GEN(large)
ARENA_LOCKS_CTL_PROTO_GEN(extent_freelist)
ARENA_LOCKS_CTL_PROTO_GEN(extents_cached)
ARENA_LOCKS_CTL_PROTO_GEN(extents_retained)
ARENA_LOCKS_CTL_PROTO_GEN(decay)
ARENA_LOCKS_CTL_PROTO_GEN(tcache)
#undef ARENA_LOCKS_CTL_PROTO_GEN
STATS_LOCKS_CTL_PROTO_GEN(bins_j, lock)
#undef STATS_LOCKS_CTL_PROTO_GEN
/******************************************************************************/
/* mallctl tree. */
/* Maximum tree depth. */
#define CTL_MAX_DEPTH 6
#define NAME(n) {true}, n
#define CHILD(t, c) \
sizeof(c##_node) / sizeof(ctl_##t##_node_t), \
@ -349,6 +384,26 @@ static const ctl_named_node_t stats_arenas_i_large_node[] = {
{NAME("nrequests"), CTL(stats_arenas_i_large_nrequests)}
};
#define LOCK_PROF_DATA_NODE(prefix, n) \
static const ctl_named_node_t prefix##_##n##_node[] = { \
{NAME("num_ops"), \
CTL(prefix##_##n##_num_ops)}, \
{NAME("num_wait"), \
CTL(prefix##_##n##_num_wait)}, \
{NAME("num_spin_acq"), \
CTL(prefix##_##n##_num_spin_acq)}, \
{NAME("num_owner_switch"), \
CTL(prefix##_##n##_num_owner_switch)}, \
{NAME("total_wait_time"), \
CTL(prefix##_##n##_total_wait_time)}, \
{NAME("max_wait_time"), \
CTL(prefix##_##n##_max_wait_time)}, \
{NAME("max_num_thds"), \
CTL(prefix##_##n##_max_num_thds)} \
/* Note that # of current waiting thread not provided. */ \
};
LOCK_PROF_DATA_NODE(stats_arenas_i_bins_j, lock)
static const ctl_named_node_t stats_arenas_i_bins_j_node[] = {
{NAME("nmalloc"), CTL(stats_arenas_i_bins_j_nmalloc)},
{NAME("ndalloc"), CTL(stats_arenas_i_bins_j_ndalloc)},
@ -359,8 +414,9 @@ static const ctl_named_node_t stats_arenas_i_bins_j_node[] = {
{NAME("nslabs"), CTL(stats_arenas_i_bins_j_nslabs)},
{NAME("nreslabs"), CTL(stats_arenas_i_bins_j_nreslabs)},
{NAME("curslabs"), CTL(stats_arenas_i_bins_j_curslabs)},
{NAME("lock_data"), CTL(stats_arenas_i_bins_j_lock_data)}
{NAME("lock"), CHILD(named, stats_arenas_i_bins_j_lock)}
};
static const ctl_named_node_t super_stats_arenas_i_bins_j_node[] = {
{NAME(""), CHILD(named, stats_arenas_i_bins_j)}
};
@ -383,6 +439,26 @@ static const ctl_indexed_node_t stats_arenas_i_lextents_node[] = {
{INDEX(stats_arenas_i_lextents_j)}
};
LOCK_PROF_DATA_NODE(stats_arenas_i_locks, large)
LOCK_PROF_DATA_NODE(stats_arenas_i_locks, extent_freelist)
LOCK_PROF_DATA_NODE(stats_arenas_i_locks, extents_cached)
LOCK_PROF_DATA_NODE(stats_arenas_i_locks, extents_retained)
LOCK_PROF_DATA_NODE(stats_arenas_i_locks, decay)
LOCK_PROF_DATA_NODE(stats_arenas_i_locks, tcache)
static const ctl_named_node_t stats_arenas_i_locks_node[] = {
{NAME("large"), CHILD(named, stats_arenas_i_locks_large)},
{NAME("extent_freelist"),
CHILD(named, stats_arenas_i_locks_extent_freelist)},
{NAME("extents_cached"),
CHILD(named, stats_arenas_i_locks_extents_cached)},
{NAME("extents_retained"),
CHILD(named, stats_arenas_i_locks_extents_retained)},
{NAME("decay"), CHILD(named, stats_arenas_i_locks_decay)},
{NAME("tcache"), CHILD(named, stats_arenas_i_locks_tcache)}
};
#undef LOCK_PROF_DATA_NODE
static const ctl_named_node_t stats_arenas_i_node[] = {
{NAME("nthreads"), CTL(stats_arenas_i_nthreads)},
{NAME("dss"), CTL(stats_arenas_i_dss)},
@ -406,7 +482,8 @@ static const ctl_named_node_t stats_arenas_i_node[] = {
{NAME("small"), CHILD(named, stats_arenas_i_small)},
{NAME("large"), CHILD(named, stats_arenas_i_large)},
{NAME("bins"), CHILD(indexed, stats_arenas_i_bins)},
{NAME("lextents"), CHILD(indexed, stats_arenas_i_lextents)}
{NAME("lextents"), CHILD(indexed, stats_arenas_i_lextents)},
{NAME("locks"), CHILD(named, stats_arenas_i_locks)}
};
static const ctl_named_node_t super_stats_arenas_i_node[] = {
{NAME(""), CHILD(named, stats_arenas_i)}
@ -663,6 +740,22 @@ ctl_arena_stats_sdmerge(ctl_arena_t *ctl_sdarena, ctl_arena_t *ctl_arena,
accum_arena_stats_u64(&sdstats->astats.decay_muzzy.purged,
&astats->astats.decay_muzzy.purged);
malloc_lock_prof_merge(&(sdstats->astats.large_mtx_data),
&(astats->astats.large_mtx_data));
malloc_lock_prof_merge(
&(sdstats->astats.extent_freelist_mtx_data),
&(astats->astats.extent_freelist_mtx_data));
malloc_lock_prof_merge(
&(sdstats->astats.extents_cached_mtx_data),
&(astats->astats.extents_cached_mtx_data));
malloc_lock_prof_merge(
&(sdstats->astats.extents_retained_mtx_data),
&(astats->astats.extents_retained_mtx_data));
malloc_lock_prof_merge(&(sdstats->astats.decay_mtx_data),
&(astats->astats.decay_mtx_data));
malloc_lock_prof_merge(&(sdstats->astats.tcache_mtx_data),
&(astats->astats.tcache_mtx_data));
if (!destroyed) {
accum_atomic_zu(&sdstats->astats.base,
&astats->astats.base);
@ -2319,6 +2412,41 @@ CTL_RO_CGEN(config_stats, stats_arenas_i_large_nrequests,
arena_stats_read_u64(&arenas_i(mib[2])->astats->astats.nmalloc_large),
uint64_t) /* Intentional. */
/* Lock profiling related APIs below. */
#define ARENAS_LOCK_CTL_GEN(l, s, d) \
CTL_RO_CGEN(config_stats, stats_arenas_i_##l##_num_ops, \
arenas_i(mib[2])->astats->s.d.n_lock_ops, uint64_t) \
CTL_RO_CGEN(config_stats, stats_arenas_i_##l##_num_wait, \
arenas_i(mib[2])->astats->s.d.n_wait_times, uint64_t) \
CTL_RO_CGEN(config_stats, stats_arenas_i_##l##_num_spin_acq, \
arenas_i(mib[2])->astats->s.d.n_spin_acquired, uint64_t) \
CTL_RO_CGEN(config_stats, stats_arenas_i_##l##_num_owner_switch, \
arenas_i(mib[2])->astats->s.d.n_owner_switches, uint64_t) \
CTL_RO_CGEN(config_stats, stats_arenas_i_##l##_total_wait_time, \
arenas_i(mib[2])->astats->s.d.tot_wait_time, uint64_t) \
CTL_RO_CGEN(config_stats, stats_arenas_i_##l##_max_wait_time, \
arenas_i(mib[2])->astats->s.d.max_wait_time, uint64_t) \
CTL_RO_CGEN(config_stats, stats_arenas_i_##l##_max_num_thds, \
arenas_i(mib[2])->astats->s.d.max_n_thds, uint64_t)
#define ARENAS_ASTATS_LOCK_CTL_GEN(l, d) \
ARENAS_LOCK_CTL_GEN(locks_##l, astats, d)
/* arena->large_mtx */
ARENAS_ASTATS_LOCK_CTL_GEN(large, large_mtx_data)
/* arena->extent_freelist_mtx */
ARENAS_ASTATS_LOCK_CTL_GEN(extent_freelist, extent_freelist_mtx_data)
/* arena->extents_cached.mtx */
ARENAS_ASTATS_LOCK_CTL_GEN(extents_cached, extents_cached_mtx_data)
/* arena->extents_retained.mtx */
ARENAS_ASTATS_LOCK_CTL_GEN(extents_retained, extents_retained_mtx_data)
/* arena->decay.mtx */
ARENAS_ASTATS_LOCK_CTL_GEN(decay, decay_mtx_data)
/* arena->tcache_ql_mtx */
ARENAS_ASTATS_LOCK_CTL_GEN(tcache, tcache_mtx_data)
/* arena->bins[j].lock */
ARENAS_LOCK_CTL_GEN(bins_j_lock, bstats[mib[4]], lock_data)
CTL_RO_CGEN(config_stats, stats_arenas_i_bins_j_nmalloc,
arenas_i(mib[2])->astats->bstats[mib[4]].nmalloc, uint64_t)
CTL_RO_CGEN(config_stats, stats_arenas_i_bins_j_ndalloc,
@ -2337,8 +2465,6 @@ CTL_RO_CGEN(config_stats, stats_arenas_i_bins_j_nreslabs,
arenas_i(mib[2])->astats->bstats[mib[4]].reslabs, uint64_t)
CTL_RO_CGEN(config_stats, stats_arenas_i_bins_j_curslabs,
arenas_i(mib[2])->astats->bstats[mib[4]].curslabs, size_t)
CTL_RO_CGEN(config_stats, stats_arenas_i_bins_j_lock_data,
arenas_i(mib[2])->astats->bstats[mib[4]].lock_data, lock_prof_data_t)
static const ctl_named_node_t *
stats_arenas_i_bins_j_index(tsdn_t *tsdn, const size_t *mib, size_t miblen,

36
src/mutex.c
View File

@ -68,49 +68,55 @@ JEMALLOC_EXPORT int _pthread_mutex_init_calloc_cb(pthread_mutex_t *mutex,
void
malloc_mutex_lock_slow(malloc_mutex_t *mutex) {
lock_prof_data_t *data = &mutex->prof_data;
bool spin_success = false;
{//TODO: a smart spin policy
if (!malloc_mutex_trylock(mutex)) {
spin_success = true;
goto label_locked;
data->n_spin_acquired++;
return;
}
}
nstime_t now, before;
uint32_t n_thds;
nstime_init(&now, 0);
nstime_update(&now);
n_thds = atomic_add_u32(&data->n_waiting_thds, 1);
nstime_copy(&before, &now);
uint32_t n_thds = atomic_add_u32(&data->n_waiting_thds, 1);
/* One last try as above two calls may take quite some cycles. */
if (!malloc_mutex_trylock(mutex)) {
spin_success = true;
atomic_sub_u32(&data->n_waiting_thds, 1);
goto label_locked;
data->n_spin_acquired++;
return;
}
nstime_copy(&before, &now);
/* True slow path. */
malloc_mutex_lock_final(mutex);
atomic_sub_u32(&data->n_waiting_thds, 1);
nstime_update(&now);
/* Update more slow-path only counters. */
nstime_subtract(&now, &before);
label_locked:
if (spin_success) {
data->n_spin_acquired++;
} else {
uint64_t wait_time = nstime_ns(&now);
data->n_wait_times++;
nstime_add(&data->tot_wait_time, &now);
if (nstime_compare(&now, &data->max_wait_time)) {
nstime_copy(&data->max_wait_time, &now);
data->tot_wait_time += wait_time;
if (wait_time > data->max_wait_time) {
data->max_wait_time = wait_time;
}
if (n_thds > data->max_n_thds) {
data->max_n_thds = n_thds;
}
}
static void
lock_prof_data_init(lock_prof_data_t *data) {
memset(data, 0, sizeof(lock_prof_data_t));
data->prev_owner = NULL;
}
bool
malloc_mutex_init(malloc_mutex_t *mutex, const char *name,
witness_rank_t rank) {
lock_prof_data_init(&mutex->prof_data);
#ifdef _WIN32
# if _WIN32_WINNT >= 0x0600
InitializeSRWLock(&mutex->lock);

82
src/stats.c
View File

@ -7,7 +7,7 @@
} while (0)
#define CTL_M2_GET(n, i, v, t) do { \
size_t mib[6]; \
size_t mib[CTL_MAX_DEPTH]; \
size_t miblen = sizeof(mib) / sizeof(size_t); \
size_t sz = sizeof(t); \
xmallctlnametomib(n, mib, &miblen); \
@ -16,7 +16,7 @@
} while (0)
#define CTL_M2_M4_GET(n, i, j, v, t) do { \
size_t mib[6]; \
size_t mib[CTL_MAX_DEPTH]; \
size_t miblen = sizeof(mib) / sizeof(size_t); \
size_t sz = sizeof(t); \
xmallctlnametomib(n, mib, &miblen); \
@ -77,13 +77,13 @@ stats_arena_bins_print(void (*write_cb)(void *, const char *), void *cbopaque,
" ndalloc nrequests curregs"
" curslabs regs pgs util nfills"
" nflushes newslabs reslabs"
" contention max_wait\n");
" contention max_wait_ns\n");
} else {
malloc_cprintf(write_cb, cbopaque,
"bins: size ind allocated nmalloc"
" ndalloc nrequests curregs"
" curslabs regs pgs util newslabs"
" reslabs contention max_wait\n");
" reslabs contention max_wait_ns\n");
}
}
for (j = 0, in_gap = false; j < nbins; j++) {
@ -126,9 +126,14 @@ stats_arena_bins_print(void (*write_cb)(void *, const char *), void *cbopaque,
uint64_t);
CTL_M2_M4_GET("stats.arenas.0.bins.0.curslabs", i, j, &curslabs,
size_t);
lock_prof_data_t lock_data;
CTL_M2_M4_GET("stats.arenas.0.bins.0.lock_data", i, j,
&lock_data, lock_prof_data_t);
uint64_t num_ops, num_wait, max_wait;
CTL_M2_M4_GET("stats.arenas.0.bins.0.lock.num_wait", i, j,
&num_wait, uint64_t);
CTL_M2_M4_GET("stats.arenas.0.bins.0.lock.max_wait_time", i, j,
&max_wait, uint64_t);
CTL_M2_M4_GET("stats.arenas.0.bins.0.lock.num_ops", i, j,
&num_ops, uint64_t);
if (json) {
malloc_cprintf(write_cb, cbopaque,
@ -178,15 +183,12 @@ stats_arena_bins_print(void (*write_cb)(void *, const char *), void *cbopaque,
}
}
char rate[6];
if (get_rate_str(lock_data.n_wait_times,
lock_data.n_lock_ops, rate)) {
if (lock_data.n_lock_ops == 0) {
if (get_rate_str(num_wait, num_ops, rate)) {
if (num_ops == 0) {
malloc_snprintf(rate, sizeof(rate),
"0");
}
}
uint64_t max_wait = nstime_msec(
&lock_data.max_wait_time);
if (config_tcache) {
malloc_cprintf(write_cb, cbopaque,
@ -204,11 +206,11 @@ stats_arena_bins_print(void (*write_cb)(void *, const char *), void *cbopaque,
"%20zu %3u %12zu %12"FMTu64
" %12"FMTu64" %12"FMTu64" %12zu"
" %12zu %4u %3zu %-5s %12"FMTu64
" %12"FMTu64" %12s\n",
" %12"FMTu64" %12s %12"FMTu64"\n",
reg_size, j, curregs * reg_size, nmalloc,
ndalloc, nrequests, curregs, curslabs,
nregs, slab_size / page, util, nslabs,
nreslabs, rate);
nreslabs, rate, max_wait);
}
}
}
@ -287,6 +289,57 @@ stats_arena_lextents_print(void (*write_cb)(void *, const char *),
}
}
static void
gen_ctl_str(char *str, const char *lock, const char *counter) {
sprintf(str, "stats.arenas.0.locks.%s.%s", lock, counter);
}
static void read_arena_lock_stats(unsigned arena_ind,
uint64_t results[NUM_ARENA_PROF_LOCKS][NUM_LOCK_PROF_COUNTERS]) {
char cmd[128];
unsigned i, j;
for (i = 0; i < NUM_ARENA_PROF_LOCKS; i++) {
for (j = 0; j < NUM_LOCK_PROF_COUNTERS; j++) {
gen_ctl_str(cmd, arena_lock_names[i],
lock_counter_names[j]);
CTL_M2_GET(cmd, arena_ind, &results[i][j], uint64_t);
}
}
}
static void
stats_arena_locks_print(void (*write_cb)(void *, const char *),
void *cbopaque, bool json, unsigned arena_ind) {
uint64_t lock_stats[NUM_ARENA_PROF_LOCKS][NUM_LOCK_PROF_COUNTERS];
read_arena_lock_stats(arena_ind, lock_stats);
/* Output lock stats. */
if (json) {
//TODO
} else {
malloc_cprintf(write_cb, cbopaque,
" n_lock_ops n_waiting"
" n_spin_acq n_owner_switch total_wait_ns"
" max_wait_ns max_n_wait_thds\n");
unsigned i, j;
for (i = 0; i < NUM_ARENA_PROF_LOCKS; i++) {
malloc_cprintf(write_cb, cbopaque,
"%s", arena_lock_names[i]);
malloc_cprintf(write_cb, cbopaque, ":%*c",
(int)(18 - strlen(arena_lock_names[i])), ' ');
for (j = 0; j < NUM_LOCK_PROF_COUNTERS; j++) {
malloc_cprintf(write_cb, cbopaque, " %15"FMTu64,
lock_stats[i][j]);
}
malloc_cprintf(write_cb, cbopaque, "\n");
}
}
}
static void
stats_arena_print(void (*write_cb)(void *, const char *), void *cbopaque,
bool json, unsigned i, bool bins, bool large) {
@ -518,6 +571,7 @@ stats_arena_print(void (*write_cb)(void *, const char *), void *cbopaque,
"resident: %12zu\n", resident);
}
stats_arena_locks_print(write_cb, cbopaque, json, i);
if (bins) {
stats_arena_bins_print(write_cb, cbopaque, json, large, i);
}