From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thomas Fjellstrom Subject: slow random raid5 access? Date: Sat, 30 May 2009 13:44:15 -0600 Message-ID: <200905301344.15895.tfjellstrom@shaw.ca> Reply-To: tfjellstrom@shaw.ca Mime-Version: 1.0 Content-Type: Text/Plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Sender: linux-raid-owner@vger.kernel.org To: linux-raid@vger.kernel.org List-Id: linux-raid.ids I'm have a new md raid5 array, and have been trying to break it in and tweak it a little. But random read or write are rather slow when using small record sizes: http://pastebin.ca/1441414 Is that normal? And is there a way to speed it up without significantly slowing down sequential access? -- Thomas Fjellstrom tfjellstrom@shaw.ca