Re: oom-killer

From: Michal Hocko
Date: Tue Aug 06 2019 - 11:11:28 EST


On Tue 06-08-19 20:25:51, Pankaj Suryawanshi wrote:
[...]
> lowmem reserve ? it is min_free_kbytes or something else.

Nope. Lowmem rezerve is a measure to protect from allocations targetting
higher zones (have a look at setup_per_zone_lowmem_reserve). The value
for each zone depends on the amount of memory managed by the zone
and the ratio which can be tuned from the userspace. min_free_kbytes
controls reclaim watermarks.

--
Michal Hocko
SUSE Labs