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Add nonfull_slabs to bin_stats_t.

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When config_stats is enabled track the size of bin->slabs_nonfull in
the new nonfull_slabs counter in bin_stats_t. This metric should be
useful for establishing an upper ceiling on the savings possible by
meshing.
This commit is contained in:
Doron Roberts-Kedes
2019-04-12 07:08:50 -04:00
committed by Qi Wang
parent ae124b8684
commit 7fc4f2a32c
7 changed files with 42 additions and 1 deletions
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7
src/stats.c
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@@ -294,6 +294,7 @@ stats_arena_bins_print(emitter_t *emitter, bool mutex, unsigned i, uint64_t upti
COL_HDR(row, nshards, NULL, right, 9, unsigned)
COL_HDR(row, curregs, NULL, right, 13, size)
COL_HDR(row, curslabs, NULL, right, 13, size)
COL_HDR(row, nonfull_slabs, NULL, right, 15, size)
COL_HDR(row, regs, NULL, right, 5, unsigned)
COL_HDR(row, pgs, NULL, right, 4, size)
/* To buffer a right- and left-justified column. */
@@ -337,6 +338,7 @@ stats_arena_bins_print(emitter_t *emitter, bool mutex, unsigned i, uint64_t upti
uint64_t nslabs;
size_t reg_size, slab_size, curregs;
size_t curslabs;
size_t nonfull_slabs;
uint32_t nregs, nshards;
uint64_t nmalloc, ndalloc, nrequests, nfills, nflushes;
uint64_t nreslabs;
@@ -372,6 +374,8 @@ stats_arena_bins_print(emitter_t *emitter, bool mutex, unsigned i, uint64_t upti
uint64_t);
CTL_M2_M4_GET("stats.arenas.0.bins.0.curslabs", i, j, &curslabs,
size_t);
CTL_M2_M4_GET("stats.arenas.0.bins.0.nonfull_slabs", i, j, &nonfull_slabs,
size_t);
if (mutex) {
mutex_stats_read_arena_bin(i, j, col_mutex64,
@@ -395,6 +399,8 @@ stats_arena_bins_print(emitter_t *emitter, bool mutex, unsigned i, uint64_t upti
&nreslabs);
emitter_json_kv(emitter, "curslabs", emitter_type_size,
&curslabs);
emitter_json_kv(emitter, "nonfull_slabs", emitter_type_size,
&nonfull_slabs);
if (mutex) {
emitter_json_object_kv_begin(emitter, "mutex");
mutex_stats_emit(emitter, NULL, col_mutex64,
@@ -434,6 +440,7 @@ stats_arena_bins_print(emitter_t *emitter, bool mutex, unsigned i, uint64_t upti
col_nshards.unsigned_val = nshards;
col_curregs.size_val = curregs;
col_curslabs.size_val = curslabs;
col_nonfull_slabs.size_val = nonfull_slabs;
col_regs.unsigned_val = nregs;
col_pgs.size_val = slab_size / page;
col_util.str_val = util;