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Add mallctl for dumping last-N profiling records

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This commit is contained in:
Yinan Zhang
2020-02-04 16:05:11 -08:00
committed by Qi Wang
parent bc05ecebf6
commit 68e8ddcaff
2 changed files with 225 additions and 0 deletions
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33
src/ctl.c
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@@ -237,6 +237,7 @@ CTL_PROTO(experimental_utilization_batch_query)
CTL_PROTO(experimental_arenas_i_pactivep)
INDEX_PROTO(experimental_arenas_i)
CTL_PROTO(experimental_prof_recent_alloc_max)
CTL_PROTO(experimental_prof_recent_alloc_dump)
#define MUTEX_STATS_CTL_PROTO_GEN(n) \
CTL_PROTO(stats_##n##_num_ops) \
@@ -631,6 +632,7 @@ static const ctl_indexed_node_t experimental_arenas_node[] = {
static const ctl_named_node_t experimental_prof_recent_node[] = {
{NAME("alloc_max"), CTL(experimental_prof_recent_alloc_max)},
{NAME("alloc_dump"), CTL(experimental_prof_recent_alloc_dump)},
};
static const ctl_named_node_t experimental_node[] = {
@@ -3549,3 +3551,34 @@ experimental_prof_recent_alloc_max_ctl(tsd_t *tsd, const size_t *mib,
label_return:
return ret;
}
typedef struct write_cb_packet_s write_cb_packet_t;
struct write_cb_packet_s {
void (*write_cb)(void *, const char *);
void *cbopaque;
};
static int
experimental_prof_recent_alloc_dump_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;
}
assert(sizeof(write_cb_packet_t) == sizeof(void *) * 2);
WRITEONLY();
write_cb_packet_t write_cb_packet;
ASSURED_WRITE(write_cb_packet, write_cb_packet_t);
prof_recent_alloc_dump(tsd, write_cb_packet.write_cb,
write_cb_packet.cbopaque);
ret = 0;
label_return:
return ret;
}