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HPA: Manage whole hugepages at a time.

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This redesigns the HPA implementation to allow us to manage hugepages all at
once, locally, without relying on a global fallback.
This commit is contained in:
David Goldblatt
2020-11-09 13:49:30 -08:00
committed by David Goldblatt
parent 63677dde63
commit 43af63fff4
16 changed files with 700 additions and 550 deletions
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21
test/unit/psset.c
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@@ -2,7 +2,7 @@
#include "jemalloc/internal/psset.h"
#define PAGESLAB_PAGES 64
#define PAGESLAB_PAGES (HUGEPAGE / PAGE)
#define PAGESLAB_SIZE (PAGESLAB_PAGES << LG_PAGE)
#define PAGESLAB_SN 123
#define PAGESLAB_ADDR ((void *)(1234 << LG_PAGE))
@@ -296,22 +296,23 @@ TEST_END
static void
stats_expect_empty(psset_bin_stats_t *stats) {
assert_zu_eq(0, stats->npageslabs,
assert_zu_eq(0, stats->npageslabs_nonhuge,
"Supposedly empty bin had positive npageslabs");
expect_zu_eq(0, stats->nactive, "Unexpected nonempty bin"
expect_zu_eq(0, stats->nactive_nonhuge, "Unexpected nonempty bin"
"Supposedly empty bin had positive nactive");
expect_zu_eq(0, stats->ninactive, "Unexpected nonempty bin"
expect_zu_eq(0, stats->ninactive_nonhuge, "Unexpected nonempty bin"
"Supposedly empty bin had positive ninactive");
}
static void
stats_expect(psset_t *psset, size_t nactive) {
if (nactive == PAGESLAB_PAGES) {
expect_zu_eq(1, psset->stats.full_slabs.npageslabs,
expect_zu_eq(1, psset->stats.full_slabs.npageslabs_nonhuge,
"Expected a full slab");
expect_zu_eq(PAGESLAB_PAGES, psset->stats.full_slabs.nactive,
expect_zu_eq(PAGESLAB_PAGES,
psset->stats.full_slabs.nactive_nonhuge,
"Should have exactly filled the bin");
expect_zu_eq(0, psset->stats.full_slabs.ninactive,
expect_zu_eq(0, psset->stats.full_slabs.ninactive_nonhuge,
"Should never have inactive pages in a full slab");
} else {
stats_expect_empty(&psset->stats.full_slabs);
@@ -325,13 +326,13 @@ stats_expect(psset_t *psset, size_t nactive) {
for (pszind_t i = 0; i < PSSET_NPSIZES; i++) {
if (i == nonempty_pind) {
assert_zu_eq(1,
psset->stats.nonfull_slabs[i].npageslabs,
psset->stats.nonfull_slabs[i].npageslabs_nonhuge,
"Should have found a slab");
expect_zu_eq(nactive,
psset->stats.nonfull_slabs[i].nactive,
psset->stats.nonfull_slabs[i].nactive_nonhuge,
"Mismatch in active pages");
expect_zu_eq(ninactive,
psset->stats.nonfull_slabs[i].ninactive,
psset->stats.nonfull_slabs[i].ninactive_nonhuge,
"Mismatch in inactive pages");
} else {
stats_expect_empty(&psset->stats.nonfull_slabs[i]);