From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-ig0-f173.google.com (mail-ig0-f173.google.com [209.85.213.173]) by kanga.kvack.org (Postfix) with ESMTP id 6359682F66 for ; Thu, 22 Oct 2015 11:33:22 -0400 (EDT) Received: by igbni9 with SMTP id ni9so16399197igb.1 for ; Thu, 22 Oct 2015 08:33:22 -0700 (PDT) Received: from resqmta-ch2-01v.sys.comcast.net (resqmta-ch2-01v.sys.comcast.net. [2001:558:fe21:29:69:252:207:33]) by mx.google.com with ESMTPS id t5si1635009igd.80.2015.10.22.08.33.21 for (version=TLSv1.2 cipher=RC4-SHA bits=128/128); Thu, 22 Oct 2015 08:33:21 -0700 (PDT) Date: Thu, 22 Oct 2015 10:33:20 -0500 (CDT) From: Christoph Lameter Subject: Re: [PATCH] mm,vmscan: Use accurate values for zone_reclaimable() checks In-Reply-To: <20151022151528.GG30579@mtj.duckdns.org> Message-ID: References: <20151021143337.GD8805@dhcp22.suse.cz> <20151021145505.GE8805@dhcp22.suse.cz> <201510222037.ACH86458.OFOLFtQFOHJSVM@I-love.SAKURA.ne.jp> <20151022140944.GA30579@mtj.duckdns.org> <20151022150623.GE26854@dhcp22.suse.cz> <20151022151528.GG30579@mtj.duckdns.org> Content-Type: text/plain; charset=US-ASCII Sender: owner-linux-mm@kvack.org List-ID: To: Tejun Heo Cc: Michal Hocko , Tetsuo Handa , linux-mm@kvack.org, linux-kernel@vger.kernel.org, torvalds@linux-foundation.org, David Rientjes , oleg@redhat.com, kwalker@redhat.com, akpm@linux-foundation.org, hannes@cmpxchg.org, vdavydov@parallels.com, skozina@redhat.com, mgorman@suse.de, riel@redhat.com Ok that also makes me rethink commit ba4877b9ca51f80b5d30f304a46762f0509e1635 which seems to be a similar fix this time related to idle mode not updating the counters. Could we fix that by folding the counters before going to idle mode? That fix seems to now create 2 separate application interuptions because the vmstat update is not deferred anymore to occur with other events. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org