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HPA: Correctly calculate retained pages

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Retained pages are those which haven't been touched and are unbacked from OS
perspective. For a pageslab their number should equal "total pages in slab"
minus "touched pages".
This commit is contained in:
Alex Lapenkou 2021-08-19 15:16:11 -07:00 • committed by Alexander Lapenkov
parent 2c625d5cd9
commit c01a885e94
1 changed files with 1 additions and 1 deletions
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include/jemalloc/internal/hpdata.h
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@ -292,7 +292,7 @@ hpdata_ndirty_get(hpdata_t *hpdata) {
static inline size_t
hpdata_nretained_get(hpdata_t *hpdata) {
return hpdata->h_nactive - hpdata->h_ntouched;
return HUGEPAGE_PAGES - hpdata->h_ntouched;
}
static inline void