linux-kernel - Re: [PATCH RFC] slub: reap free slabs periodically

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Message-ID: <alpine.DEB.2.20.1606101629520.6786@east.gentwo.org>
Date:	Fri, 10 Jun 2016 16:32:26 -0500 (CDT)
From:	Christoph Lameter <cl@...ux.com>
To:	Vladimir Davydov <vdavydov@...tuozzo.com>
cc:	Pekka Enberg <penberg@...nel.org>,
	David Rientjes <rientjes@...gle.com>,
	Joonsoo Kim <iamjoonsoo.kim@....com>,
	Andrew Morton <akpm@...ux-foundation.org>, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH RFC] slub: reap free slabs periodically

One reason for SLUBs creation was the 2 second scans in  SLAB which causes
significant disruption of latency sensitive tasksk.

You can simply implement a reaper in userspace by running

slabinfo -s

if you have to have this.


There is no need to duplicate SLAB problems.