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Last-N profiling mode

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This commit is contained in:
Yinan Zhang
2019-12-18 13:38:14 -08:00
parent 7a27a05940
commit 9a60cf54ec
26 changed files with 1218 additions and 44 deletions
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45
src/ctl.c
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@@ -113,6 +113,7 @@ CTL_PROTO(opt_prof_gdump)
CTL_PROTO(opt_prof_final)
CTL_PROTO(opt_prof_leak)
CTL_PROTO(opt_prof_accum)
CTL_PROTO(opt_prof_recent_alloc_max)
CTL_PROTO(opt_zero_realloc)
CTL_PROTO(tcache_create)
CTL_PROTO(tcache_flush)
@@ -232,6 +233,7 @@ CTL_PROTO(experimental_utilization_query)
CTL_PROTO(experimental_utilization_batch_query)
CTL_PROTO(experimental_arenas_i_pactivep)
INDEX_PROTO(experimental_arenas_i)
CTL_PROTO(experimental_prof_recent_alloc_max)
#define MUTEX_STATS_CTL_PROTO_GEN(n) \
CTL_PROTO(stats_##n##_num_ops) \
@@ -343,6 +345,7 @@ static const ctl_named_node_t opt_node[] = {
{NAME("prof_final"), CTL(opt_prof_final)},
{NAME("prof_leak"), CTL(opt_prof_leak)},
{NAME("prof_accum"), CTL(opt_prof_accum)},
{NAME("prof_recent_alloc_max"), CTL(opt_prof_recent_alloc_max)},
{NAME("zero_realloc"), CTL(opt_zero_realloc)}
};
@@ -620,10 +623,15 @@ static const ctl_indexed_node_t experimental_arenas_node[] = {
{INDEX(experimental_arenas_i)}
};
static const ctl_named_node_t experimental_prof_recent_node[] = {
{NAME("alloc_max"), CTL(experimental_prof_recent_alloc_max)},
};
static const ctl_named_node_t experimental_node[] = {
{NAME("hooks"), CHILD(named, experimental_hooks)},
{NAME("utilization"), CHILD(named, experimental_utilization)},
{NAME("arenas"), CHILD(indexed, experimental_arenas)}
{NAME("arenas"), CHILD(indexed, experimental_arenas)},
{NAME("prof_recent"), CHILD(named, experimental_prof_recent)}
};
static const ctl_named_node_t root_node[] = {
@@ -1791,6 +1799,8 @@ CTL_RO_NL_CGEN(config_prof, opt_lg_prof_interval, opt_lg_prof_interval, ssize_t)
CTL_RO_NL_CGEN(config_prof, opt_prof_gdump, opt_prof_gdump, bool)
CTL_RO_NL_CGEN(config_prof, opt_prof_final, opt_prof_final, bool)
CTL_RO_NL_CGEN(config_prof, opt_prof_leak, opt_prof_leak, bool)
CTL_RO_NL_CGEN(config_prof, opt_prof_recent_alloc_max,
opt_prof_recent_alloc_max, ssize_t)
CTL_RO_NL_GEN(opt_zero_realloc,
zero_realloc_mode_names[opt_zero_realloc_action], const char *)
@@ -3461,3 +3471,36 @@ label_return:
malloc_mutex_unlock(tsd_tsdn(tsd), &ctl_mtx);
return ret;
}
static int
experimental_prof_recent_alloc_max_ctl(tsd_t *tsd, const size_t *mib,
size_t miblen, void *oldp, size_t *oldlenp, void *newp, size_t newlen) {
int ret;
if (!(config_prof && opt_prof)) {
ret = ENOENT;
goto label_return;
}
ssize_t old_max;
if (newp != NULL) {
if (newlen != sizeof(ssize_t)) {
ret = EINVAL;
goto label_return;
}
ssize_t max = *(ssize_t *)newp;
if (max < -1) {
ret = EINVAL;
goto label_return;
}
old_max = prof_recent_alloc_max_ctl_write(tsd, max);
} else {
old_max = prof_recent_alloc_max_ctl_read();
}
READ(old_max, ssize_t);
ret = 0;
label_return:
return ret;
}