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Track the leaked VM space via the abandoned_vm counter.

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The counter is 0 unless metadata allocation failed (indicates OOM), and is
mainly for sanity checking.
This commit is contained in:
Qi Wang
2019-07-15 15:56:05 -07:00
committed by Qi Wang
parent 42807fcd9e
commit 4e36ce34c1
5 changed files with 26 additions and 5 deletions
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7
src/ctl.c
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@@ -210,6 +210,7 @@ CTL_PROTO(stats_arenas_i_internal)
CTL_PROTO(stats_arenas_i_metadata_thp)
CTL_PROTO(stats_arenas_i_tcache_bytes)
CTL_PROTO(stats_arenas_i_resident)
CTL_PROTO(stats_arenas_i_abandoned_vm)
INDEX_PROTO(stats_arenas_i)
CTL_PROTO(stats_allocated)
CTL_PROTO(stats_active)
@@ -543,6 +544,7 @@ static const ctl_named_node_t stats_arenas_i_node[] = {
{NAME("metadata_thp"), CTL(stats_arenas_i_metadata_thp)},
{NAME("tcache_bytes"), CTL(stats_arenas_i_tcache_bytes)},
{NAME("resident"), CTL(stats_arenas_i_resident)},
{NAME("abandoned_vm"), CTL(stats_arenas_i_abandoned_vm)},
{NAME("small"), CHILD(named, stats_arenas_i_small)},
{NAME("large"), CHILD(named, stats_arenas_i_large)},
{NAME("bins"), CHILD(indexed, stats_arenas_i_bins)},
@@ -913,6 +915,8 @@ MUTEX_PROF_ARENA_MUTEXES
&astats->astats.ndalloc_large);
ctl_accum_arena_stats_u64(&sdstats->astats.nrequests_large,
&astats->astats.nrequests_large);
accum_atomic_zu(&sdstats->astats.abandoned_vm,
&astats->astats.abandoned_vm);
accum_atomic_zu(&sdstats->astats.tcache_bytes,
&astats->astats.tcache_bytes);
@@ -2871,6 +2875,9 @@ CTL_RO_CGEN(config_stats, stats_arenas_i_tcache_bytes,
CTL_RO_CGEN(config_stats, stats_arenas_i_resident,
atomic_load_zu(&arenas_i(mib[2])->astats->astats.resident, ATOMIC_RELAXED),
size_t)
CTL_RO_CGEN(config_stats, stats_arenas_i_abandoned_vm,
atomic_load_zu(&arenas_i(mib[2])->astats->astats.abandoned_vm,
ATOMIC_RELAXED), size_t)
CTL_RO_CGEN(config_stats, stats_arenas_i_small_allocated,
arenas_i(mib[2])->astats->allocated_small, size_t)