Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934576AbbKTGVo (ORCPT ); Fri, 20 Nov 2015 01:21:44 -0500 Received: from LGEAMRELO11.lge.com ([156.147.23.51]:56349 "EHLO lgeamrelo11.lge.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752163AbbKTGVn (ORCPT ); Fri, 20 Nov 2015 01:21:43 -0500 X-Original-SENDERIP: 156.147.1.126 X-Original-MAILFROM: iamjoonsoo.kim@lge.com X-Original-SENDERIP: 10.177.222.138 X-Original-MAILFROM: iamjoonsoo.kim@lge.com Date: Fri, 20 Nov 2015 15:21:52 +0900 From: Joonsoo Kim To: Andrew Morton Cc: Michal Nazarewicz , Minchan Kim , David Rientjes , linux-mm@kvack.org, linux-kernel@vger.kernel.org, Steven Rostedt Subject: Re: [PATCH 2/3] mm/page_isolation: add new tracepoint, test_pages_isolated Message-ID: <20151120062151.GA13061@js1304-P5Q-DELUXE> References: <1447381428-12445-1-git-send-email-iamjoonsoo.kim@lge.com> <1447381428-12445-2-git-send-email-iamjoonsoo.kim@lge.com> <20151119153411.6215be690f75f70b3fa84766@linux-foundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151119153411.6215be690f75f70b3fa84766@linux-foundation.org> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1097 Lines: 27 On Thu, Nov 19, 2015 at 03:34:11PM -0800, Andrew Morton wrote: > On Fri, 13 Nov 2015 11:23:47 +0900 Joonsoo Kim wrote: > > > cma allocation should be guranteeded to succeed, but, sometimes, > > it could be failed in current implementation. To track down > > the problem, we need to know which page is problematic and > > this new tracepoint will report it. > > akpm3:/usr/src/25> size mm/page_isolation.o > text data bss dec hex filename > 2972 112 1096 4180 1054 mm/page_isolation.o-before > 4608 570 1840 7018 1b6a mm/page_isolation.o-after > > This seems an excessive amount of bloat for one little tracepoint. Is > this expected and normal (and acceptable)? Hello, I checked bloat on other tracepoints and found that it's normal. It takes 1KB more per tracepoint. Thanks. -- 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/