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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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82
src/stats.c
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@@ -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);
}