From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pa0-f50.google.com (mail-pa0-f50.google.com [209.85.220.50]) by kanga.kvack.org (Postfix) with ESMTP id A15A66B0038 for ; Mon, 21 Sep 2015 18:47:09 -0400 (EDT) Received: by pacfv12 with SMTP id fv12so131363359pac.2 for ; Mon, 21 Sep 2015 15:47:09 -0700 (PDT) Received: from mail-pa0-x233.google.com (mail-pa0-x233.google.com. [2607:f8b0:400e:c03::233]) by mx.google.com with ESMTPS id z5si40989418par.231.2015.09.21.15.47.08 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 21 Sep 2015 15:47:08 -0700 (PDT) Received: by padhy16 with SMTP id hy16so128644447pad.1 for ; Mon, 21 Sep 2015 15:47:08 -0700 (PDT) Date: Mon, 21 Sep 2015 15:47:06 -0700 (PDT) From: David Rientjes Subject: Re: [PATCH] doc: add information about max_ptes_swap In-Reply-To: <1442525698-22598-1-git-send-email-ebru.akagunduz@gmail.com> Message-ID: References: <1442525698-22598-1-git-send-email-ebru.akagunduz@gmail.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org List-ID: To: Ebru Akagunduz Cc: linux-mm@kvack.org, riel@redhat.com, akpm@linux-foundation.org, oleg@redhat.com, kirill.shutemov@linux.intel.com, dave@stgolabs.net, denc716@gmail.com, ldufour@linux.vnet.ibm.com, sasha.levin@oracle.com, viro@zeniv.linux.org.uk, linux-kernel@vger.kernel.org On Fri, 18 Sep 2015, Ebru Akagunduz wrote: > max_ptes_swap specifies how many pages can be brought in from > swap when collapsing a group of pages into a transparent huge page. > > /sys/kernel/mm/transparent_hugepage/khugepaged/max_ptes_swap > > A higher value can cause excessive swap IO and waste > memory. A lower value can prevent THPs from being > collapsed, resulting fewer pages being collapsed into > THPs, and lower memory access performance. > > Signed-off-by: Ebru Akagunduz Acked-by: David Rientjes -- 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