From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pa0-f49.google.com (mail-pa0-f49.google.com [209.85.220.49]) by kanga.kvack.org (Postfix) with ESMTP id B4DB36B0038 for ; Wed, 3 Dec 2014 02:54:20 -0500 (EST) Received: by mail-pa0-f49.google.com with SMTP id eu11so15186606pac.22 for ; Tue, 02 Dec 2014 23:54:20 -0800 (PST) Received: from lgemrelse6q.lge.com (LGEMRELSE6Q.lge.com. [156.147.1.121]) by mx.google.com with ESMTP id us1si13710712pac.23.2014.12.02.23.54.17 for ; Tue, 02 Dec 2014 23:54:19 -0800 (PST) Date: Wed, 3 Dec 2014 16:57:47 +0900 From: Joonsoo Kim Subject: Re: isolate_freepages_block and excessive CPU usage by OSD process Message-ID: <20141203075747.GB6276@js1304-P5Q-DELUXE> References: <546D2366.1050506@suse.cz> <20141121023554.GA24175@cucumber.bridge.anchor.net.au> <20141123093348.GA16954@cucumber.anchor.net.au> <20141128080331.GD11802@js1304-P5Q-DELUXE> <54783FB7.4030502@suse.cz> <20141201083118.GB2499@js1304-P5Q-DELUXE> <20141202014724.GA22239@cucumber.bridge.anchor.net.au> <20141202045324.GC6268@js1304-P5Q-DELUXE> <20141202050608.GA11051@cucumber.bridge.anchor.net.au> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20141202050608.GA11051@cucumber.bridge.anchor.net.au> Sender: owner-linux-mm@kvack.org List-ID: To: linux-mm@kvack.org On Tue, Dec 02, 2014 at 04:06:08PM +1100, Christian Marie wrote: > On Tue, Dec 02, 2014 at 01:53:24PM +0900, Joonsoo Kim wrote: > > This is just my assumption, so if possible, please check it with > > compaction tracepoint. If it is, we can make a solution for this > > problem. > > Which event/function would you like me to trace specifically? Hello, It'd be very helpful to get output of "trace_event=compaction:*,kmem:mm_page_alloc_extfrag" on the kernel with my tracepoint patches below. See following link. There is 3 patches. https://lkml.org/lkml/2014/12/3/71 Thanks. -- 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