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Bin batching: add some stats.

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This lets us easily see what fraction of flush load is being taken up by the
bins, and helps guide future optimization approaches (for example: should we
prefetch during cache bin fills? It depends on how many objects the average fill
pops out of the batch).
This commit is contained in:
David Goldblatt
2024-02-20 14:54:43 -08:00
committed by David Goldblatt
parent fc615739cb
commit f9c0b5f7f8
8 changed files with 114 additions and 0 deletions
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30
src/ctl.c
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@@ -239,6 +239,10 @@ CTL_PROTO(stats_arenas_i_bins_j_nslabs)
CTL_PROTO(stats_arenas_i_bins_j_nreslabs)
CTL_PROTO(stats_arenas_i_bins_j_curslabs)
CTL_PROTO(stats_arenas_i_bins_j_nonfull_slabs)
CTL_PROTO(stats_arenas_i_bins_j_batch_pops)
CTL_PROTO(stats_arenas_i_bins_j_batch_failed_pushes)
CTL_PROTO(stats_arenas_i_bins_j_batch_pushes)
CTL_PROTO(stats_arenas_i_bins_j_batch_pushed_elems)
INDEX_PROTO(stats_arenas_i_bins_j)
CTL_PROTO(stats_arenas_i_lextents_j_nmalloc)
CTL_PROTO(stats_arenas_i_lextents_j_ndalloc)
@@ -694,6 +698,14 @@ static const ctl_named_node_t stats_arenas_i_bins_j_node[] = {
{NAME("nreslabs"), CTL(stats_arenas_i_bins_j_nreslabs)},
{NAME("curslabs"), CTL(stats_arenas_i_bins_j_curslabs)},
{NAME("nonfull_slabs"), CTL(stats_arenas_i_bins_j_nonfull_slabs)},
{NAME("batch_pops"),
CTL(stats_arenas_i_bins_j_batch_pops)},
{NAME("batch_failed_pushes"),
CTL(stats_arenas_i_bins_j_batch_failed_pushes)},
{NAME("batch_pushes"),
CTL(stats_arenas_i_bins_j_batch_pushes)},
{NAME("batch_pushed_elems"),
CTL(stats_arenas_i_bins_j_batch_pushed_elems)},
{NAME("mutex"), CHILD(named, stats_arenas_i_bins_j_mutex)}
};
@@ -1246,6 +1258,16 @@ MUTEX_PROF_ARENA_MUTEXES
assert(bstats->curslabs == 0);
assert(bstats->nonfull_slabs == 0);
}
merged->batch_pops
+= bstats->batch_pops;
merged->batch_failed_pushes
+= bstats->batch_failed_pushes;
merged->batch_pushes
+= bstats->batch_pushes;
merged->batch_pushed_elems
+= bstats->batch_pushed_elems;
malloc_mutex_prof_merge(&sdstats->bstats[i].mutex_data,
&astats->bstats[i].mutex_data);
}
@@ -3957,6 +3979,14 @@ CTL_RO_CGEN(config_stats, stats_arenas_i_bins_j_curslabs,
arenas_i(mib[2])->astats->bstats[mib[4]].stats_data.curslabs, size_t)
CTL_RO_CGEN(config_stats, stats_arenas_i_bins_j_nonfull_slabs,
arenas_i(mib[2])->astats->bstats[mib[4]].stats_data.nonfull_slabs, size_t)
CTL_RO_CGEN(config_stats, stats_arenas_i_bins_j_batch_pops,
arenas_i(mib[2])->astats->bstats[mib[4]].stats_data.batch_pops, uint64_t)
CTL_RO_CGEN(config_stats, stats_arenas_i_bins_j_batch_failed_pushes,
arenas_i(mib[2])->astats->bstats[mib[4]].stats_data.batch_failed_pushes, uint64_t)
CTL_RO_CGEN(config_stats, stats_arenas_i_bins_j_batch_pushes,
arenas_i(mib[2])->astats->bstats[mib[4]].stats_data.batch_pushes, uint64_t)
CTL_RO_CGEN(config_stats, stats_arenas_i_bins_j_batch_pushed_elems,
arenas_i(mib[2])->astats->bstats[mib[4]].stats_data.batch_pushed_elems, uint64_t)
static const ctl_named_node_t *
stats_arenas_i_bins_j_index(tsdn_t *tsdn, const size_t *mib,