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Add stats for stashed bytes in tcache.

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This commit is contained in:
Qi Wang
2021-11-30 14:39:34 -08:00
committed by Qi Wang
parent b75822bc6e
commit e491cef9ab
9 changed files with 112 additions and 36 deletions
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14
test/unit/stats.c
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@@ -367,7 +367,7 @@ TEST_END
static void
test_tcache_bytes_for_usize(size_t usize) {
uint64_t epoch;
size_t tcache_bytes;
size_t tcache_bytes, tcache_stashed_bytes;
size_t sz = sizeof(tcache_bytes);
void *ptr = mallocx(usize, 0);
@@ -377,7 +377,11 @@ test_tcache_bytes_for_usize(size_t usize) {
assert_d_eq(mallctl(
"stats.arenas." STRINGIFY(MALLCTL_ARENAS_ALL) ".tcache_bytes",
&tcache_bytes, &sz, NULL, 0), 0, "Unexpected mallctl failure");
size_t tcache_bytes_before = tcache_bytes;
assert_d_eq(mallctl(
"stats.arenas." STRINGIFY(MALLCTL_ARENAS_ALL)
".tcache_stashed_bytes", &tcache_stashed_bytes, &sz, NULL, 0), 0,
"Unexpected mallctl failure");
size_t tcache_bytes_before = tcache_bytes + tcache_stashed_bytes;
dallocx(ptr, 0);
expect_d_eq(mallctl("epoch", NULL, NULL, (void *)&epoch, sizeof(epoch)),
@@ -385,7 +389,11 @@ test_tcache_bytes_for_usize(size_t usize) {
assert_d_eq(mallctl(
"stats.arenas." STRINGIFY(MALLCTL_ARENAS_ALL) ".tcache_bytes",
&tcache_bytes, &sz, NULL, 0), 0, "Unexpected mallctl failure");
size_t tcache_bytes_after = tcache_bytes;
assert_d_eq(mallctl(
"stats.arenas." STRINGIFY(MALLCTL_ARENAS_ALL)
".tcache_stashed_bytes", &tcache_stashed_bytes, &sz, NULL, 0), 0,
"Unexpected mallctl failure");
size_t tcache_bytes_after = tcache_bytes + tcache_stashed_bytes;
assert_zu_eq(tcache_bytes_after - tcache_bytes_before,
usize, "Incorrectly attributed a free");
}