Date: Thu, 17 Mar 2016 10:22:55 -0500 From: Eric van Gyzen <vangyzen@FreeBSD.org> To: Alan Somers <asomers@freebsd.org>, "Pieper, Jeffrey E" <jeffrey.e.pieper@intel.com> Cc: FreeBSD Net <freebsd-net@freebsd.org>, Jack Vogel <jfvogel@gmail.com> Subject: Re: TSO test Message-ID: <56EACBCF.5020109@FreeBSD.org> In-Reply-To: <CAOtMX2g7NzquGC17Gz5dXHEOy7nQFGEhb7FrBPO0zrXDwH=d6g@mail.gmail.com> References: <CAFOYbcn9XTaLrtZhkS1X69qhf2aOe0iOSirCTA=LfGsZDTqbeg@mail.gmail.com> <2A35EA60C3C77D438915767F458D656880953A88@ORSMSX111.amr.corp.intel.com> <CAOtMX2g7NzquGC17Gz5dXHEOy7nQFGEhb7FrBPO0zrXDwH=d6g@mail.gmail.com>
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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 <freebsd-net@freebsd.org> >> 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" >
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