From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756821Ab1HXJBI (ORCPT ); Wed, 24 Aug 2011 05:01:08 -0400 Received: from server655-han.de-nserver.de ([85.158.177.45]:36009 "EHLO server655-han.de-nserver.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756603Ab1HXJBH (ORCPT ); Wed, 24 Aug 2011 05:01:07 -0400 Message-ID: <4E54BDCF.9020504@profihost.ag> Date: Wed, 24 Aug 2011 11:01:03 +0200 From: Stefan Priebe - Profihost AG User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.18) Gecko/20110617 Thunderbird/3.1.11 MIME-Version: 1.0 To: Pekka Enberg CC: LKML , linux-mm@kvack.org, Andrew Morton , Mel Gorman , Jens Axboe , Wu Fengguang , Linux Netdev List Subject: Re: slow performance on disk/network i/o full speed after drop_caches References: <4E5494D4.1050605@profihost.ag> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-User-Auth: Auth by hostmaster@profihost.com through 85.158.179.66 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org >> sync&& echo 3>/proc/sys/vm/drop_caches&& sleep 2&& echo 0 >>> /proc/sys/vm/drop_caches Another way to get it working again is to stop some processes. Could be mysql or apache or php fcgi doesn't matter. Just free some memory. Although there are already 5GB free. Stefan From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail203.messagelabs.com (mail203.messagelabs.com [216.82.254.243]) by kanga.kvack.org (Postfix) with ESMTP id 91A756B0169 for ; Wed, 24 Aug 2011 05:01:09 -0400 (EDT) Message-ID: <4E54BDCF.9020504@profihost.ag> Date: Wed, 24 Aug 2011 11:01:03 +0200 From: Stefan Priebe - Profihost AG MIME-Version: 1.0 Subject: Re: slow performance on disk/network i/o full speed after drop_caches References: <4E5494D4.1050605@profihost.ag> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: Pekka Enberg Cc: LKML , linux-mm@kvack.org, Andrew Morton , Mel Gorman , Jens Axboe , Wu Fengguang , Linux Netdev List >> sync&& echo 3>/proc/sys/vm/drop_caches&& sleep 2&& echo 0 >>> /proc/sys/vm/drop_caches Another way to get it working again is to stop some processes. Could be mysql or apache or php fcgi doesn't matter. Just free some memory. Although there are already 5GB free. Stefan -- 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