From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mark Nelson Subject: Re: ioreplay allows replaying fs traces from a strace log file Date: Thu, 12 Apr 2012 16:53:32 -0500 Message-ID: <4F874EDC.7030409@dreamhost.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from mail.hq.newdream.net ([66.33.206.127]:60448 "EHLO mail.hq.newdream.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1762855Ab2DLVxf (ORCPT ); Thu, 12 Apr 2012 17:53:35 -0400 In-Reply-To: Sender: ceph-devel-owner@vger.kernel.org List-ID: To: Tommi Virtanen Cc: Samuel Just , ceph-devel I played around with this about a month back during a rados bench run, but had some trouble getting it to work when strace was attached to an already running process. I didn't end up spending a lot of time on it though. Jeff Layton also wrote a strace analyzer tool specifically for IO, but it needs a bit of work to support -f. His stuff can be found here: http://clusterbuffer.wetpaint.com/page/Strace+Analyzer Mark On 4/12/12 3:47 PM, Tommi Virtanen wrote: > This looks interesting: http://code.google.com/p/ioapps/