Return-Path: Received: from fwil.voltaire.com ([193.47.165.2]:48564 "EHLO exil.voltaire.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752886Ab0G1JpT (ORCPT ); Wed, 28 Jul 2010 05:45:19 -0400 Message-ID: <4C4FFC2B.4020906@Voltaire.com> Date: Wed, 28 Jul 2010 12:45:15 +0300 From: Or Gerlitz To: Sebastien Godard CC: Trond Myklebust , linux-nfs@vger.kernel.org Subject: Re: iostat "await" like counter for measuring nfs latency References: <1280244478.2981.3.camel@heimdal.trondhjem.org> In-Reply-To: <1280244478.2981.3.camel@heimdal.trondhjem.org> Content-Type: text/plain; charset=UTF-8 Sender: linux-nfs-owner@vger.kernel.org List-ID: MIME-Version: 1.0 Trond Myklebust wrote: > On Tue, 2010-07-27 at 13:07 +0300, Or Gerlitz wrote: >> Doing some iscsi and nfs performance testing, I realized that iostat(1) >> doesn't support an "await" like counter for measuring nfs latency. >> Can tracking nfs latency be done in other means? is there a plan to >> extend the nfs iostats code to include such/similar counter? > The information is already available in /proc/self/mountstats. It is up > to iostat to start using it. Sebastian, is there a plan to support await like counter in sysstat? I didn't find a source repository (is there an open one? where?) so downloaded the latest code (version 9.1.3) drop from the website and couldn't see there such a counter, am I missing something? Or.