I see. Thank you very much :-)
At 2018-11-21 16:56:29, "Vladimir Davydov" <vdavydov.dev@xxxxxxxxx> wrote: >On Wed, Nov 21, 2018 at 04:46:48PM +0800, dong wrote: >> Sorry, I found when I ran `echo 3 > /proc/sys/vm/drop_caches`, the >> leak memory was released very slowly. >> >> The `Page Cache` of the opened log file is the reason to cause leak. >> Because the `struct page` contains `struct mem_cgroup *mem_cgroup` >> which has a large chunk of memory. Thanks everyone for helping me to >> solve the problem. > >Ah, so it doesn't seem to be kmem problem at all. The email I sent >several minutes ago isn't relevant then. > >> The last question: If I alloc many small pages and not free them, will >> I exhaust the memory ( because every page contains `mem_cgroup` )? > >Once memory usage is close to the limit, the reclaimer will kick in >automatically to free those pages and the associated dead cgroups.
