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Add several USDT probes for hpa

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Slobodan Predolac 2025-06-10 11:44:23 -07:00 • committed by Guangli Dai
parent 711fff750c
commit f87bbab22c
2 changed files with 16 additions and 2 deletions
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5
src/hpdata.c
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@ -2,6 +2,7 @@
#include "jemalloc/internal/jemalloc_internal_includes.h"
#include "jemalloc/internal/hpdata.h"
#include "jemalloc/internal/jemalloc_probe.h"
static int
hpdata_age_comp(const hpdata_t *a, const hpdata_t *b) {
@ -100,6 +101,8 @@ hpdata_reserve_alloc(hpdata_t *hpdata, size_t sz) {
hpdata->touched_pages, HUGEPAGE_PAGES, result, npages);
fb_set_range(hpdata->touched_pages, HUGEPAGE_PAGES, result, npages);
hpdata->h_ntouched += new_dirty;
JE_USDT(hpa_reserve, 5, npages, hpdata->h_nactive, hpdata->h_ntouched,
new_dirty, largest_unchosen_range);
/*
* If we allocated out of a range that was the longest in the hpdata, it
@ -160,6 +163,8 @@ hpdata_unreserve(hpdata_t *hpdata, void *addr, size_t sz) {
hpdata->h_nactive -= npages;
hpdata_assert_consistent(hpdata);
JE_USDT(hpa_unreserve, 5, npages, hpdata->h_nactive, hpdata->h_ntouched,
old_longest_range, new_range_len);
}
size_t