From owner-freebsd-net@freebsd.org Thu Mar 17 15:56:19 2016 Return-Path: Delivered-To: freebsd-net@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 6769BAD2B6A for ; Thu, 17 Mar 2016 15:56:19 +0000 (UTC) (envelope-from vangyzen@FreeBSD.org) Received: from smtp.vangyzen.net (hotblack.vangyzen.net [IPv6:2607:fc50:1000:7400:216:3eff:fe72:314f]) by mx1.freebsd.org (Postfix) with ESMTP id 4FAA582B; Thu, 17 Mar 2016 15:56:19 +0000 (UTC) (envelope-from vangyzen@FreeBSD.org) Received: from sweettea.beer.town (unknown [76.164.8.130]) by smtp.vangyzen.net (Postfix) with ESMTPSA id A181F56498; Thu, 17 Mar 2016 10:56:18 -0500 (CDT) Subject: Re: TSO test To: "Pieper, Jeffrey E" , Alan Somers References: <2A35EA60C3C77D438915767F458D656880953A88@ORSMSX111.amr.corp.intel.com> <56EACBCF.5020109@FreeBSD.org> <2A35EA60C3C77D438915767F458D656880953B86@ORSMSX111.amr.corp.intel.com> Cc: FreeBSD Net , Jack Vogel From: Eric van Gyzen Message-ID: <56EAD3A2.4020507@FreeBSD.org> Date: Thu, 17 Mar 2016 10:56:18 -0500 User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:38.0) Gecko/20100101 Thunderbird/38.6.0 MIME-Version: 1.0 In-Reply-To: <2A35EA60C3C77D438915767F458D656880953B86@ORSMSX111.amr.corp.intel.com> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 17 Mar 2016 15:56:19 -0000 Jeff, So, you reboot the DUT between each scenario? Eric On 03/17/2016 10:28, Pieper, Jeffrey E wrote: > You can also parse vmstat -i, which we do as well. > > Jeff > > -----Original Message----- > From: Eric van Gyzen [mailto:vangyzen@FreeBSD.org] > Sent: Thursday, March 17, 2016 8:23 AM > To: Alan Somers ; Pieper, Jeffrey E > Cc: FreeBSD Net ; Jack Vogel > Subject: Re: TSO test > > Alan, > > That does sound useful. As one complication, "vmstat -i" shows the > interrupt rate since boot. Either the test would need to reboot between > each iteration, or vmstat would need to be improved to show the "recent" > rate. The latter would be a much welcome improvement, in my humble opinion. > > Cheers, > > Eric > > On 03/17/2016 09:45, Alan Somers wrote: >> Would it be more useful to log the NIC's interrupt rate using "vmstat -i"? >> >> On Thu, Mar 17, 2016 at 8:25 AM, Pieper, Jeffrey E < >> jeffrey.e.pieper@intel.com> wrote: >> >>> Basically what we do is run TCP tx traffic using various message sizes >>> with TSO enabled, while logging throughput and CPU usage, then run the same >>> scenario again with TSO disabled. We do this with both IPv4 and IPv6. >>> >>> Jeff >>> >>> -----Original Message----- >>> From: owner-freebsd-net@freebsd.org [mailto:owner-freebsd-net@freebsd.org] >>> On Behalf Of Jack Vogel >>> Sent: Wednesday, March 16, 2016 11:31 PM >>> To: FreeBSD Net >>> Subject: TSO test >>> >>> Anyone have a 'simple' test case for TSO, something a bit >>> more distilled than running netperf or iperf? >>> >>> Thanks, >>> >>> Jack >>> _______________________________________________ >>> freebsd-net@freebsd.org mailing list >>> https://lists.freebsd.org/mailman/listinfo/freebsd-net >>> To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org" >>> _______________________________________________ >>> freebsd-net@freebsd.org mailing list >>> https://lists.freebsd.org/mailman/listinfo/freebsd-net >>> To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org" >>> >> _______________________________________________ >> freebsd-net@freebsd.org mailing list >> https://lists.freebsd.org/mailman/listinfo/freebsd-net >> To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org" >> >