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Move empty slab tracking to the psset.

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We're moving towards a world in which purging decisions are less rigidly
enforced at a single-hugepage level.  In that world, it makes sense to keep
around some hpdatas which are not completely purged, in which case we'll need to
track them.
This commit is contained in:
David Goldblatt 2020-12-05 17:42:04 -08:00 • committed by David Goldblatt
parent 99fc0717e6
commit bf64557ed6
10 changed files with 193 additions and 169 deletions
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7
src/stats.c
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@ -790,14 +790,11 @@ stats_arena_hpa_shard_print(emitter_t *emitter, unsigned i, uint64_t uptime) {
emitter_row_t row;
emitter_row_init(&row);
uint64_t nevictions;
uint64_t npurge_passes;
uint64_t npurges;
uint64_t nhugifies;
uint64_t ndehugifies;
CTL_M2_GET("stats.arenas.0.hpa_shard.nevictions",
i, &nevictions, uint64_t);
CTL_M2_GET("stats.arenas.0.hpa_shard.npurge_passes",
i, &npurge_passes, uint64_t);
CTL_M2_GET("stats.arenas.0.hpa_shard.npurges",
@ -839,7 +836,6 @@ stats_arena_hpa_shard_print(emitter_t *emitter, unsigned i, uint64_t uptime) {
emitter_table_printf(emitter,
"HPA shard stats:\n"
" Evictions: %" FMTu64 " (%" FMTu64 " / sec)\n"
" Purge passes: %" FMTu64 " (%" FMTu64 " / sec)\n"
" Purges: %" FMTu64 " (%" FMTu64 " / sec)\n"
" Hugeifies: %" FMTu64 " (%" FMTu64 " / sec)\n"
@ -850,7 +846,6 @@ stats_arena_hpa_shard_print(emitter_t *emitter, unsigned i, uint64_t uptime) {
" nactive: %zu huge, %zu nonhuge \n"
" ndirty: %zu huge, %zu nonhuge \n"
" nretained: 0 huge, %zu nonhuge \n",
nevictions, rate_per_second(nevictions, uptime),
npurge_passes, rate_per_second(npurge_passes, uptime),
npurges, rate_per_second(npurges, uptime),
nhugifies, rate_per_second(nhugifies, uptime),
@ -861,8 +856,6 @@ stats_arena_hpa_shard_print(emitter_t *emitter, unsigned i, uint64_t uptime) {
nretained_nonhuge);
emitter_json_object_kv_begin(emitter, "hpa_shard");
emitter_json_kv(emitter, "nevictions", emitter_type_uint64,
&nevictions);
emitter_json_kv(emitter, "npurge_passes", emitter_type_uint64,
&npurge_passes);
emitter_json_kv(emitter, "npurges", emitter_type_uint64,