Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755570AbbB0WOr (ORCPT ); Fri, 27 Feb 2015 17:14:47 -0500 Received: from tex.lwn.net ([70.33.254.29]:50771 "EHLO vena.lwn.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754766AbbB0WOq (ORCPT ); Fri, 27 Feb 2015 17:14:46 -0500 Date: Fri, 27 Feb 2015 15:14:44 -0700 From: Jonathan Corbet To: Ebru Akagunduz Cc: linux-mm@kvack.org, riel@redhat.com, mgorman@suse.de, hughd@google.com, kirill.shutemov@linux.intel.com, akpm@linux-foundation.org, dave@stgolabs.net, aulmcquad@gmail.com, sasha.levin@oracle.com, xemul@parallels.com, linux-kernel@vger.kernel.org Subject: Re: [PATCH] doc: add information about max_ptes_none Message-ID: <20150227151444.05ce1b31@lwn.net> In-Reply-To: <1424986476-6438-1-git-send-email-ebru.akagunduz@gmail.com> References: <1424986476-6438-1-git-send-email-ebru.akagunduz@gmail.com> Organization: LWN.net X-Mailer: Claws Mail 3.11.1 (GTK+ 2.24.25; x86_64-redhat-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 795 Lines: 22 On Thu, 26 Feb 2015 23:34:36 +0200 Ebru Akagunduz wrote: > max_ptes_none specifies how many extra small pages (that are > not already mapped) can be allocated when collapsing a group > of small pages into one large page. > > /sys/kernel/mm/transparent_hugepage/khugepaged/max_ptes_none > > A higher value leads to use additional memory for programs. > A lower value leads to gain less thp performance. Value of > max_ptes_none can waste cpu time very little, you can > ignore it. Applied to the docs tree, thanks. jon -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/