From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail144.messagelabs.com (mail144.messagelabs.com [216.82.254.51]) by kanga.kvack.org (Postfix) with ESMTP id B6D5A6B016B for ; Thu, 25 Aug 2011 23:13:15 -0400 (EDT) References: <4E5494D4.1050605@profihost.ag> <4E54BDCF.9020504@profihost.ag> <20110824093336.GB5214@localhost> <4E560F2A.1030801@profihost.ag> <20110826021648.GA19529@localhost> <4E570AEB.1040703@profihost.ag> <20110826030313.GA24058@localhost> In-Reply-To: <20110826030313.GA24058@localhost> Mime-Version: 1.0 (iPhone Mail 8H7) Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii Message-Id: From: Stefan Priebe Subject: Re: slow performance on disk/network i/o full speed after drop_caches Date: Fri, 26 Aug 2011 05:13:07 +0200 Sender: owner-linux-mm@kvack.org List-ID: To: Wu Fengguang Cc: Pekka Enberg , LKML , "linux-mm@kvack.org" , Andrew Morton , Mel Gorman , Jens Axboe , Linux Netdev List >> There is at least a numastat proc file. >=20 > Thanks. This shows that node0 is accessed 10x more than node1. What can i do to prevent this or isn't this normal when a machine mostly idl= es so processes are mostly processed by cpu0. >=20 >> complete ps output: >> http://pastebin.com/raw.php?i=3Db948svzN >=20 > In that log, scp happens to be in R state and also no other tasks in D > state. Would you retry in the hope of catching some stucked state? Sadly not as the sysrq trigger has rebootet the machine and it will now run f= ine for 1 or 2 days. >=20 >>> echo t> /proc/sysrq-trigger >> sadly i wa sonly able to grab the output in this crazy format: >> http://pastebin.com/raw.php?i=3DMBXvvyH1 >=20 > It's pretty readable dmesg, except that the data is incomplete and > there are nothing valuable in the uploaded portion.. That was everything i could grab through netconsole. Is there a better way? Stefan >=20 -- 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/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: email@kvack.org