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Date: Thu, 7 Sep 2017 19:47:45 +0100 From: Roman Gushchin <guro@...com> To: Shakeel Butt <shakeelb@...gle.com> CC: Johannes Weiner <hannes@...xchg.org>, Linux MM <linux-mm@...ck.org>, Michal Hocko <mhocko@...nel.org>, Vladimir Davydov <vdavydov.dev@...il.com>, <cgroups@...r.kernel.org>, <kernel-team@...com>, LKML <linux-kernel@...r.kernel.org> Subject: Re: [PATCH] mm: memcontrol: use per-cpu stocks for socket memory uncharging On Thu, Sep 07, 2017 at 11:44:12AM -0700, Shakeel Butt wrote: > >> As far as other types of pages go: page cache and anon are already > >> batched pretty well, but I think kmem might benefit from this > >> too. Have you considered using the stock in memcg_kmem_uncharge()? > > > > Good idea! > > I'll try to find an appropriate testcase and check if it really > > brings any benefits. If so, I'll master a patch. > > > > Hi Roman, did you get the chance to try this on memcg_kmem_uncharge()? Hi Shakeel! Not yet, I'll try to it asap. Do you have an example when it's costly? Thanks!
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