Date: Mon, 08 Feb 1999 09:50:22 -0800 From: Mike Smith <mike@smith.net.au> To: Martin Cracauer <cracauer@cons.org> Cc: chat@FreeBSD.ORG Subject: Re: 100Mbit ethernet card comparision Message-ID: <199902081750.JAA13456@dingo.cdrom.com> In-Reply-To: Your message of "Mon, 08 Feb 1999 14:53:25 %2B0100." <19990208145325.A8384@cons.org>
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> I run a number of dhrystones one after another so that the time for > all of them was about 1 min. Just before the first dhrystone starts, > the same TCP streaming benchmark as above is being started, and > immedeatly after the dhrystones end SIGHUP is sent to the cstream > tool, which ends its loop then and reports the throughput. > > OS/card seconds r/u/s on throughput of > on CPU process network process > ----------------------------------------------------- > FreeBSD/de: 10.36/10.26/0.02 2.10 MioB/sec > FreeBSD/de: 10.36/10.26/0.02 2.21 MioB/sec > FreeBSD/rl: 10.41/10.24/0.02 0.38 MioB/sec > FreeBSD/rl: 10.39/10.24/0.02 0.28 MioB/sec > FreeBSD/rl: 10.41/10.24/0.02 0.24 MioB/sec > Linux/rl: 27.8/14.7/0.6 8.44 MioB/sec > Linux/rl: 22.9/14.4/4.4 6.50 MioB/sec > Linux/rl: 26.4/14.7/5.8 7.81 MioB/sec > Linux/de: 20.7/14.6/0.9 9.21 MioB/sec > Linux/de: 20.5/13.8/1.0 9.14 MioB/sec > Linux/de: 21.0/14.2/1.2 9.64 MioB/sec > > Example read: With rl Ethernet, Linux leaves half the CPU for the CPU > intensive process and gets ~8 MB/sec for the networking process, while > FreeBSD leaves 99% CPU for the CPU eater and gets 0.25-0.4 MB/sec out > of the networking connection. Did you look at the relative process priorities during this run? We've seen this behaviour reported before; I'm wondering if the I/O-bound process is being penalised for doing large amounts of (small?) I/O... -- \\ Sometimes you're ahead, \\ Mike Smith \\ sometimes you're behind. \\ mike@smith.net.au \\ The race is long, and in the \\ msmith@freebsd.org \\ end it's only with yourself. \\ msmith@cdrom.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-chat" in the body of the message
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