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Format change: HPA shard counters from prose to structured rows

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Table-output change: emit the HPA shard counters as structured key:value rows
keyed by the JSON field names, instead of the previous free-form prose.  JSON
output is byte-identical; only the human-readable table changes.
This commit is contained in:
Slobodan Predolac 2026-07-16 05:39:01 -07:00
parent ab2520fe94
commit c3700194f0
1 changed files with 41 additions and 52 deletions
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93
src/stats.c
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@ -1178,60 +1178,49 @@ stats_arena_pac_sec_print(emitter_t *emitter, unsigned i) {
static void
stats_emit_arena_hpa_counters(emitter_t *emitter,
const stats_arena_hpa_counters_t *c, uint64_t uptime) {
emitter_table_printf(emitter,
"HPA shard stats:\n"
" Pageslabs: %zu (%zu huge, %zu nonhuge)\n"
" Active pages: %zu (%zu huge, %zu nonhuge)\n"
" Dirty pages: %zu (%zu huge, %zu nonhuge)\n"
" Retained pages: %zu\n"
" Purge passes: %" FMTu64 " (%" FMTu64
" / sec)\n"
" Purges: %" FMTu64 " (%" FMTu64
" / sec)\n"
" Hugeifies: %" FMTu64 " (%" FMTu64
" / sec)\n"
" Hugify failures: %" FMTu64 " (%" FMTu64
" / sec)\n"
" Dehugifies: %" FMTu64 " (%" FMTu64 " / sec)\n",
c->npageslabs, c->npageslabs_huge, c->npageslabs_nonhuge, c->nactive,
c->nactive_huge, c->nactive_nonhuge, c->ndirty, c->ndirty_huge,
c->ndirty_nonhuge, c->nretained_nonhuge, c->npurge_passes,
rate_per_second(c->npurge_passes, uptime), c->npurges,
rate_per_second(c->npurges, uptime), c->nhugifies,
rate_per_second(c->nhugifies, uptime), c->nhugify_failures,
rate_per_second(c->nhugify_failures, uptime), c->ndehugifies,
rate_per_second(c->ndehugifies, uptime));
/* Merged pageslab / page counts (broken down by huginess below). */
emitter_kv(emitter, "npageslabs", "npageslabs", emitter_type_size,
&c->npageslabs);
emitter_kv(emitter, "nactive", "nactive", emitter_type_size,
&c->nactive);
emitter_kv(emitter, "ndirty", "ndirty", emitter_type_size, &c->ndirty);
emitter_json_kv(emitter, "npageslabs", emitter_type_size, &c->npageslabs);
emitter_json_kv(emitter, "nactive", emitter_type_size, &c->nactive);
emitter_json_kv(emitter, "ndirty", emitter_type_size, &c->ndirty);
uint64_t npurge_passes_ps = rate_per_second(c->npurge_passes, uptime);
uint64_t npurges_ps = rate_per_second(c->npurges, uptime);
uint64_t nhugifies_ps = rate_per_second(c->nhugifies, uptime);
uint64_t nhugify_failures_ps =
rate_per_second(c->nhugify_failures, uptime);
uint64_t ndehugifies_ps = rate_per_second(c->ndehugifies, uptime);
emitter_kv_note(emitter, "npurge_passes", "npurge_passes",
emitter_type_uint64, &c->npurge_passes, "per_sec",
emitter_type_uint64, &npurge_passes_ps);
emitter_kv_note(emitter, "npurges", "npurges", emitter_type_uint64,
&c->npurges, "per_sec", emitter_type_uint64, &npurges_ps);
emitter_kv_note(emitter, "nhugifies", "nhugifies", emitter_type_uint64,
&c->nhugifies, "per_sec", emitter_type_uint64, &nhugifies_ps);
emitter_kv_note(emitter, "nhugify_failures", "nhugify_failures",
emitter_type_uint64, &c->nhugify_failures, "per_sec",
emitter_type_uint64, &nhugify_failures_ps);
emitter_kv_note(emitter, "ndehugifies", "ndehugifies",
emitter_type_uint64, &c->ndehugifies, "per_sec",
emitter_type_uint64, &ndehugifies_ps);
emitter_json_kv(
emitter, "npurge_passes", emitter_type_uint64, &c->npurge_passes);
emitter_json_kv(emitter, "npurges", emitter_type_uint64, &c->npurges);
emitter_json_kv(emitter, "nhugifies", emitter_type_uint64, &c->nhugifies);
emitter_json_kv(emitter, "nhugify_failures", emitter_type_uint64,
&c->nhugify_failures);
emitter_json_kv(
emitter, "ndehugifies", emitter_type_uint64, &c->ndehugifies);
emitter_json_object_kv_begin(emitter, "slabs");
emitter_json_kv(emitter, "npageslabs_nonhuge", emitter_type_size,
&c->npageslabs_nonhuge);
emitter_json_kv(
emitter, "nactive_nonhuge", emitter_type_size, &c->nactive_nonhuge);
emitter_json_kv(
emitter, "ndirty_nonhuge", emitter_type_size, &c->ndirty_nonhuge);
emitter_json_kv(emitter, "nretained_nonhuge", emitter_type_size,
&c->nretained_nonhuge);
emitter_json_kv(
emitter, "npageslabs_huge", emitter_type_size, &c->npageslabs_huge);
emitter_json_kv(
emitter, "nactive_huge", emitter_type_size, &c->nactive_huge);
emitter_json_kv(
emitter, "ndirty_huge", emitter_type_size, &c->ndirty_huge);
emitter_json_object_end(emitter); /* End "slabs" */
emitter_dict_begin(emitter, "slabs", "slabs");
emitter_kv(emitter, "npageslabs_nonhuge", "npageslabs_nonhuge",
emitter_type_size, &c->npageslabs_nonhuge);
emitter_kv(emitter, "nactive_nonhuge", "nactive_nonhuge",
emitter_type_size, &c->nactive_nonhuge);
emitter_kv(emitter, "ndirty_nonhuge", "ndirty_nonhuge",
emitter_type_size, &c->ndirty_nonhuge);
emitter_kv(emitter, "nretained_nonhuge", "nretained_nonhuge",
emitter_type_size, &c->nretained_nonhuge);
emitter_kv(emitter, "npageslabs_huge", "npageslabs_huge",
emitter_type_size, &c->npageslabs_huge);
emitter_kv(emitter, "nactive_huge", "nactive_huge", emitter_type_size,
&c->nactive_huge);
emitter_kv(emitter, "ndirty_huge", "ndirty_huge", emitter_type_size,
&c->ndirty_huge);
emitter_dict_end(emitter);
}
static void