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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
test/unit/stats.c
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@@ -228,7 +228,7 @@ gen_mallctl_str(char *cmd, char *name, unsigned arena_ind) {
TEST_BEGIN(test_stats_arenas_bins) {
void *p;
size_t sz, curslabs, curregs;
size_t sz, curslabs, curregs, nonfull_slabs;
uint64_t epoch, nmalloc, ndalloc, nrequests, nfills, nflushes;
uint64_t nslabs, nreslabs;
int expected = config_stats ? 0 : ENOENT;
@@ -289,6 +289,9 @@ TEST_BEGIN(test_stats_arenas_bins) {
gen_mallctl_str(cmd, "curslabs", arena_ind);
assert_d_eq(mallctl(cmd, (void *)&curslabs, &sz, NULL, 0), expected,
"Unexpected mallctl() result");
gen_mallctl_str(cmd, "nonfull_slabs", arena_ind);
assert_d_eq(mallctl(cmd, (void *)&nonfull_slabs, &sz, NULL, 0),
expected, "Unexpected mallctl() result");
if (config_stats) {
assert_u64_gt(nmalloc, 0,
@@ -309,6 +312,8 @@ TEST_BEGIN(test_stats_arenas_bins) {
"At least one slab should have been allocated");
assert_zu_gt(curslabs, 0,
"At least one slab should be currently allocated");
assert_zu_eq(nonfull_slabs, 0,
"slabs_nonfull should be empty");
}
dallocx(p, 0);