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Add logging for sampled allocations

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- prof_opt_log flag starts logging automatically at runtime
- prof_log_{start,stop} mallctl for manual control
This commit is contained in:
Tyler Etzel
2018-07-05 10:56:33 -07:00
committed by David Goldblatt
parent eb261e53a6
commit b664bd7935
11 changed files with 702 additions and 24 deletions
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44
src/ctl.c
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@@ -148,6 +148,8 @@ CTL_PROTO(prof_gdump)
CTL_PROTO(prof_reset)
CTL_PROTO(prof_interval)
CTL_PROTO(lg_prof_sample)
CTL_PROTO(prof_log_start)
CTL_PROTO(prof_log_stop)
CTL_PROTO(stats_arenas_i_small_allocated)
CTL_PROTO(stats_arenas_i_small_nmalloc)
CTL_PROTO(stats_arenas_i_small_ndalloc)
@@ -389,7 +391,9 @@ static const ctl_named_node_t prof_node[] = {
{NAME("gdump"), CTL(prof_gdump)},
{NAME("reset"), CTL(prof_reset)},
{NAME("interval"), CTL(prof_interval)},
{NAME("lg_sample"), CTL(lg_prof_sample)}
{NAME("lg_sample"), CTL(lg_prof_sample)},
{NAME("log_start"), CTL(prof_log_start)},
{NAME("log_stop"), CTL(prof_log_stop)}
};
static const ctl_named_node_t stats_arenas_i_small_node[] = {
@@ -2644,6 +2648,44 @@ label_return:
CTL_RO_NL_CGEN(config_prof, prof_interval, prof_interval, uint64_t)
CTL_RO_NL_CGEN(config_prof, lg_prof_sample, lg_prof_sample, size_t)
static int
prof_log_start_ctl(tsd_t *tsd, const size_t *mib, size_t miblen, void *oldp,
size_t *oldlenp, void *newp, size_t newlen) {
int ret;
const char *filename = NULL;
if (!config_prof) {
return ENOENT;
}
WRITEONLY();
WRITE(filename, const char *);
if (prof_log_start(tsd_tsdn(tsd), filename)) {
ret = EFAULT;
goto label_return;
}
ret = 0;
label_return:
return ret;
}
static int
prof_log_stop_ctl(tsd_t *tsd, const size_t *mib, size_t miblen, void *oldp,
size_t *oldlenp, void *newp, size_t newlen) {
if (!config_prof) {
return ENOENT;
}
if (prof_log_stop(tsd_tsdn(tsd))) {
return EFAULT;
}
return 0;
}
/******************************************************************************/
CTL_RO_CGEN(config_stats, stats_allocated, ctl_stats->allocated, size_t)