From: Stefan Priebe - Profihost AG <s.priebe@profihost.ag>
To: Pekka Enberg <penberg@kernel.org>
Cc: LKML <linux-kernel@vger.kernel.org>,
linux-mm@kvack.org, Andrew Morton <akpm@linux-foundation.org>,
Mel Gorman <mel@csn.ul.ie>, Jens Axboe <jaxboe@fusionio.com>,
Wu Fengguang <fengguang.wu@intel.com>,
Linux Netdev List <netdev@vger.kernel.org>
Subject: Re: slow performance on disk/network i/o full speed after drop_caches
Date: Wed, 24 Aug 2011 11:01:03 +0200 [thread overview]
Message-ID: <4E54BDCF.9020504@profihost.ag> (raw)
In-Reply-To: <CAOJsxLEFYW0eDbXQ0Uixf-FjsxHZ_1nmnovNx1CWj=m-c-_vJw@mail.gmail.com>
>> 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
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next prev parent reply other threads:[~2011-08-24 9:01 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <4E5494D4.1050605@profihost.ag>
2011-08-24 6:20 ` Pekka Enberg
2011-08-24 9:01 ` Stefan Priebe - Profihost AG [this message]
2011-08-24 9:33 ` Wu Fengguang
2011-08-25 9:00 ` Stefan Priebe - Profihost AG
2011-08-26 2:16 ` Wu Fengguang
2011-08-26 2:54 ` Stefan Priebe - Profihost AG
2011-08-26 3:03 ` Wu Fengguang
2011-08-26 3:13 ` Stefan Priebe
2011-08-26 3:26 ` Wu Fengguang
2011-08-26 3:30 ` Zhu Yanhai
2011-08-26 6:18 ` Stefan Priebe - Profihost AG
2011-08-31 7:11 ` Stefan Priebe - Profihost AG
2011-09-01 4:14 ` Wu Fengguang
2011-09-01 5:41 ` Stefan Priebe - Profihost AG
2011-09-01 12:57 ` Mel Gorman
2011-08-24 9:32 ` Wu Fengguang
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