From owner-freebsd-net@freebsd.org Thu Mar 17 16:16:01 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 AF734AD3329 for ; Thu, 17 Mar 2016 16:16:01 +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 7FED938E; Thu, 17 Mar 2016 16:16:01 +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 9AC1956498; Thu, 17 Mar 2016 11:15:55 -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> <56EAD3A2.4020507@FreeBSD.org> <2A35EA60C3C77D438915767F458D656880953C37@ORSMSX111.amr.corp.intel.com> Cc: FreeBSD Net , Jack Vogel From: Eric van Gyzen Message-ID: <56EAD83A.7030903@FreeBSD.org> Date: Thu, 17 Mar 2016 11:15:54 -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: <2A35EA60C3C77D438915767F458D656880953C37@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 16:16:01 -0000 Oh, you compare the "total" column from run to run. Sorry, I was just thinking about the "rate" column. Sorry for the noise. Eric On 03/17/2016 10:58, Pieper, Jeffrey E wrote: > No, we have scripts that parse vmstat -i. > > Jeff > > -----Original Message----- > From: Eric van Gyzen [mailto:vangyzen@FreeBSD.org] > Sent: Thursday, March 17, 2016 8:56 AM > To: Pieper, Jeffrey E ; Alan Somers > Cc: FreeBSD Net ; Jack Vogel > Subject: Re: TSO test > > 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" >>> >> >