From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jiri Horky Subject: Re: ioreplay allows replaying fs traces from a strace log file Date: Sat, 12 May 2012 09:31:58 +0000 (UTC) Message-ID: References: <4F874EDC.7030409@dreamhost.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Return-path: Received: from plane.gmane.org ([80.91.229.3]:36925 "EHLO plane.gmane.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751838Ab2ELJkE (ORCPT ); Sat, 12 May 2012 05:40:04 -0400 Received: from list by plane.gmane.org with local (Exim 4.69) (envelope-from ) id 1ST8nz-0001gB-GV for ceph-devel@vger.kernel.org; Sat, 12 May 2012 11:40:03 +0200 Received: from ip-62-24-86-17.net.upcbroadband.cz ([62.24.86.17]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sat, 12 May 2012 11:40:03 +0200 Received: from jiri.horky by ip-62-24-86-17.net.upcbroadband.cz with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sat, 12 May 2012 11:40:03 +0200 Sender: ceph-devel-owner@vger.kernel.org List-ID: To: ceph-devel@vger.kernel.org Mark Nelson dreamhost.com> writes: > > 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 Hi Mark, I am the developer of the ioreplay app (ioapps suite). I came across this post, could you please provide more details on the problem with replaying of "incomplete" strace files? It is certainly possible that there is a bug as this functionality was not thoroughly tested. I willing to fix it and help you with that. Your sample strace file + ignore/map files + arguments would help. Cheers Jiri Horky