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Date: Sat, 8 Feb 2020 21:41:49 +0000 (UTC) From: Christopher Lameter <cl@...ux.com> To: Wen Yang <wenyang@...ux.alibaba.com> cc: Pekka Enberg <penberg@...nel.org>, David Rientjes <rientjes@...gle.com>, Joonsoo Kim <iamjoonsoo.kim@....com>, Andrew Morton <akpm@...ux-foundation.org>, Xunlei Pang <xlpang@...ux.alibaba.com>, linux-mm@...ck.org, linux-kernel@...r.kernel.org Subject: Re: [PATCH] mm/slub: Detach node lock from counting free objects On Sat, 8 Feb 2020, Wen Yang wrote: > I would greatly appreciate it if you kindly give me some feedback on this > patch. I think the measure is too severe given its use and the general impact on code. Maybe avoid taking the lock or reducing the time a lock is taken when reading /proc/slabinfo is the best approach? Also you could cache the value in the userspace application? Why is this value read continually?
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