From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-lf0-f71.google.com (mail-lf0-f71.google.com [209.85.215.71]) by kanga.kvack.org (Postfix) with ESMTP id 48F556B0005 for ; Tue, 12 Jul 2016 14:18:49 -0400 (EDT) Received: by mail-lf0-f71.google.com with SMTP id l89so16869570lfi.3 for ; Tue, 12 Jul 2016 11:18:49 -0700 (PDT) Received: from gum.cmpxchg.org (gum.cmpxchg.org. [85.214.110.215]) by mx.google.com with ESMTPS id s130si2001703wmf.18.2016.07.12.11.18.48 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 12 Jul 2016 11:18:48 -0700 (PDT) Date: Tue, 12 Jul 2016 14:18:43 -0400 From: Johannes Weiner Subject: Re: [PATCH 29/34] mm, page_alloc: remove fair zone allocation policy Message-ID: <20160712181843.GE7821@cmpxchg.org> References: <1467970510-21195-1-git-send-email-mgorman@techsingularity.net> <1467970510-21195-30-git-send-email-mgorman@techsingularity.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1467970510-21195-30-git-send-email-mgorman@techsingularity.net> Sender: owner-linux-mm@kvack.org List-ID: To: Mel Gorman Cc: Andrew Morton , Linux-MM , Rik van Riel , Vlastimil Babka , Minchan Kim , Joonsoo Kim , LKML On Fri, Jul 08, 2016 at 10:35:05AM +0100, Mel Gorman wrote: > The fair zone allocation policy interleaves allocation requests between > zones to avoid an age inversion problem whereby new pages are reclaimed to > balance a zone. Reclaim is now node-based so this should no longer be an > issue and the fair zone allocation policy is not free. This patch removes > it. > > Signed-off-by: Mel Gorman > Acked-by: Vlastimil Babka It's indeed no longer needed with a single set of LRUs on each NUMA node. I'm glad this wart is finally going. Thanks Mel. Acked-by: Johannes Weiner -- 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