From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tejun Heo Subject: Re: [PATCH] doc: cgroup: correct the wrong information about measure of memory pressure Date: Mon, 18 Feb 2019 13:05:04 -0800 Message-ID: <20190218210504.GT50184@devbig004.ftw2.facebook.com> References: <1550278564-81540-1-git-send-email-yang.shi@linux.alibaba.com> Mime-Version: 1.0 Return-path: DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=9DzCR79XKeIjL7+2ReBiux03I1IsbcYYGjv2zjhhJ2U=; b=IvUXzBPQJEIyKxoXbz4dX0We4ImmqwmBbZb8b00WHoEnhmrQvX86N2WSx0rP1NzXFS uwDuVGKTJxW0Bg0RNeRMY2lqSxHlylMUB1QW2kusIPBR/1eSRw3pLDFw0DxTiX4xKIJH HI39c8dzh86yRNfROF1J4MTzi+z8cRaElf9D2wcp1bxf3Ak2psiTe3TVvbaMcSCeL0xz 0v5+CKY58TFKGjYiJixaNyF/JCodpDsL5qER8CF0AdDGaUzq7o2WyEBYDVhxhqSvThX0 wA2HOyR7hXaqWcIJ88Uhcpnx5RhK0K7pvEyKDaPBn85ZliSQTNNAHNknlI/GapPFjD4Q 6KrA== Content-Disposition: inline In-Reply-To: <1550278564-81540-1-git-send-email-yang.shi@linux.alibaba.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Yang Shi Cc: hannes@cmpxchg.org, corbet@lwn.net, cgroups@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org On Sat, Feb 16, 2019 at 08:56:04AM +0800, Yang Shi wrote: > Since PSI has implemented some kind of measure of memory pressure, the > statement about lack of such measure is not true anymore. > > Cc: Tejun Heo > Cc: Johannes Weiner > Cc: Jonathan Corbet > Signed-off-by: Yang Shi > --- > Documentation/admin-guide/cgroup-v2.rst | 3 +-- > 1 file changed, 1 insertion(+), 2 deletions(-) > > diff --git a/Documentation/admin-guide/cgroup-v2.rst b/Documentation/admin-guide/cgroup-v2.rst > index 7bf3f12..9a92013 100644 > --- a/Documentation/admin-guide/cgroup-v2.rst > +++ b/Documentation/admin-guide/cgroup-v2.rst > @@ -1310,8 +1310,7 @@ network to a file can use all available memory but can also operate as > performant with a small amount of memory. A measure of memory > pressure - how much the workload is being impacted due to lack of > memory - is necessary to determine whether a workload needs more > -memory; unfortunately, memory pressure monitoring mechanism isn't > -implemented yet. > +memory. Maybe refer to PSI? Thanks. -- tejun