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Merge pull request #30574 from pmed/issue_25662_cgroup_memory_limit

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WIP: use cgroup memory limit in getMemoryAmountOrZero
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alexey-milovidov 2021-10-31 14:53:16 +03:00 committed by GitHub
commit a487ee6f25
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1 changed files with 12 additions and 0 deletions
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12
base/base/getMemoryAmount.cpp
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@ -1,4 +1,5 @@
#include <stdexcept> #include <stdexcept>
#include <fstream>
#include <base/getMemoryAmount.h> #include <base/getMemoryAmount.h>
#include <base/getPageSize.h> #include <base/getPageSize.h>
@ -15,6 +16,17 @@
*/ */
uint64_t getMemoryAmountOrZero() uint64_t getMemoryAmountOrZero()
{ {
#if defined(OS_LINUX)
// Try to lookup at the Cgroup limit
std::ifstream cgroup_limit("/sys/fs/cgroup/memory/memory.limit_in_bytes");
if (cgroup_limit.is_open())
{
uint64_t amount = 0; // in case of read error
cgroup_limit >> amount;
return amount;
}
#endif
int64_t num_pages = sysconf(_SC_PHYS_PAGES); int64_t num_pages = sysconf(_SC_PHYS_PAGES);
if (num_pages <= 0) if (num_pages <= 0)
return 0; return 0;