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Linux: individual huge page values in the huge page meter

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This commit is contained in:
David Zarzycki
2021-01-14 09:46:37 -05:00
committed by cgzones
parent 4d85848988
commit 03824da684
5 changed files with 83 additions and 10 deletions
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9
linux/LinuxProcessList.c
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@ -1533,7 +1533,9 @@ static inline void LinuxProcessList_scanMemoryInfo(ProcessList* this) {
static void LinuxProcessList_scanHugePages(LinuxProcessList* this) {
this->totalHugePageMem = 0;
this->freeHugePageMem = 0;
for (unsigned i = 0; i < HTOP_HUGEPAGE_COUNT; i++) {
this->usedHugePageMem[i] = ULLONG_MAX;
}
DIR* dir = opendir("/sys/kernel/mm/hugepages");
if (!dir)
@ -1575,8 +1577,11 @@ static void LinuxProcessList_scanHugePages(LinuxProcessList* this) {
unsigned long long int free = strtoull(content, NULL, 10);
int shift = ffsl(hugePageSize) - 1 - (HTOP_HUGEPAGE_BASE_SHIFT - 10);
assert(shift >= 0 && shift < HTOP_HUGEPAGE_COUNT);
this->totalHugePageMem += total * hugePageSize;
this->freeHugePageMem += free * hugePageSize;
this->usedHugePageMem[shift] = (total - free) * hugePageSize;
}
closedir(dir);