From owner-freebsd-alpha@FreeBSD.ORG Wed Apr 2 08:22:06 2003 Return-Path: Delivered-To: freebsd-alpha@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 3564D37B401; Wed, 2 Apr 2003 08:22:06 -0800 (PST) Received: from gatekeeper.oremut01.us.wh.verio.net (gatekeeper.oremut01.us.wh.verio.net [198.65.168.16]) by mx1.FreeBSD.org (Postfix) with ESMTP id 20D5F43FCB; Wed, 2 Apr 2003 08:22:05 -0800 (PST) (envelope-from fclift@verio.net) Received: from mx.dmz.orem.verio.net (mx.dmz.orem.verio.net [10.1.1.10]) by gatekeeper.oremut01.us.wh.verio.net (Postfix) with ESMTP id AE6F63BF1AC; Wed, 2 Apr 2003 09:22:04 -0700 (MST) Received: from vespa.dmz.orem.verio.net (vespa.dmz.orem.verio.net [10.1.1.59]) by mx.dmz.orem.verio.net (8.11.6p2/8.11.6) with ESMTP id h32GM4A90212; Wed, 2 Apr 2003 09:22:04 -0700 (MST) Date: Wed, 2 Apr 2003 09:25:04 -0700 (MST) From: Fred Clift X-X-Sender: To: Maxime Henrion In-Reply-To: <20030401134113.GC1750@elvis.mu.org> Message-ID: <20030402090802.Y82002-400000@vespa.dmz.orem.verio.net> MIME-Version: 1.0 Content-Type: MULTIPART/MIXED; BOUNDARY="0-54798573-1049300704=:82002" cc: alpha@freebsd.org Subject: Re: call for testers: busdma-ified fxp(4) driver X-BeenThere: freebsd-alpha@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Porting FreeBSD to the Alpha List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 02 Apr 2003 16:22:06 -0000 This message is in MIME format. The first part should be readable text, while the remaining parts are likely unreadable without MIME-aware tools. Send mail to mime@docserver.cac.washington.edu for more info. --0-54798573-1049300704=:82002 Content-Type: TEXT/PLAIN; charset=US-ASCII On Tue, 1 Apr 2003, Maxime Henrion wrote: > > My fxp(4) patch should now be nearly commit ready. ... > > someone with an alpha box and a fxp(4) card could test this patch > > Sorry to follow-up to myself, but this patch had some bogus and > irrelevant diffs in it. I'm attaching a fixed one now. It can also be > found at http://mu.org/~mux/patches/if_fxp.patch. Well, the patch seems to work just fine - better performance now in fact. I did a bunch of scp/ftp type stuff of big and a bunch of small files just to ensure everyting was working and then I used /usr/ports/net/netperf to try and characterize performance a bit. After you install the port there is a script /usr/local/netperf/snapshot_script that tries to give a reasonable snapshot of network performance under a variety of conditions, and with a few different parameters... The target machine was a 400Mhz pentium II box (sadly, this and the alpha are the two fastest machines I own...) with '4.7-STABLE FreeBSD 4.7-STABLE #5: Mon Nov 11 12:15:39 MST 2002' (+ a few security patches) with a newer fxp card fxp0@pci0:9:0: class=0x020000 card=0x000c8086 chip=0x12298086 rev=0x08 hdr=0x00 Both of these boxes plugged into an SMC 10/100 switch... I would have just used a cross-over cable except I forgot to bring it with me and didn't feel like making one. Attached to this email you'll find the output of snapshot_script for the old driver (about two weeks old cvsup), the output of the modified driver, and the output of the script run on the integrated dc NIC, just for fun and comparison. Some sample results at one particular set of parameters: before: throughput in 10^6 bits/sec 39.18 after: throughput in 10^6 bits/sec 94.11 (dc): throughput in 10^6 bits/sec 70.97 Honestly I'm suprised there is so much difference between the before and after and I'm doubting my testing methodology -- perhaps I had the duplex set wrong on the alpha on the 'before'? shrug. I didn't shut down, or change at all, the target test box between the two tests. At any rate, the patch seems to work fine on my alpha on the one card I had time to test (older, slightly larger formfactor etherexpress pro 100). If you can wait till tomorrow, I can probably squeeze in time for testing one or two other fxp hardware revs I have... The card I did test on shows up as this: pciconf -v -l ... fxp0@pci1:8:0: class=0x020000 card=0x00098086 chip=0x12298086 rev=0x04 hdr=0x00 vendor = 'Intel Corporation' device = '82557/8/9 EtherExpress PRO/100(B) Ethernet Adapter' class = network subclass = ethernet ... Fred -- Fred Clift - fclift@verio.net -- Remember: If brute force doesn't work, you're just not using enough. --0-54798573-1049300704=:82002 Content-Type: TEXT/PLAIN; charset=US-ASCII; name="before.out" Content-Transfer-Encoding: BASE64 Content-ID: <20030402092504.L82002@vespa.dmz.orem.verio.net> Content-Description: old -current as of about 2 weeks ago Content-Disposition: attachment; filename="before.out" TmV0cGVyZiBzbmFwc2hvdCBzY3JpcHQgc3RhcnRlZCBhdCBUdWUgQXByIDEg MjA6Mzg6MDcgTVNUIDIwMDMNClN0YXJ0aW5nIDU2eDQgVENQX1NUUkVBTSB0 ZXN0cyBhdCBUdWUgQXByIDEgMjA6Mzg6NDIgTVNUIDIwMDMNCg0KLS0tLS0t LS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tDQpUZXN0aW5nIHdpdGgg dGhlIGZvbGxvd2luZyBjb21tYW5kIGxpbmU6DQovdXNyL2xvY2FsL25ldHBl cmYvbmV0cGVyZiAtdCBUQ1BfU1RSRUFNIC1sIDYwIC1IIDE5Mi4xNjguMC4x MDIgLWkgMTAsMyAtSSA5OSw1IC0tIC1zIDU3MzQ0IC1TIDU3MzQ0IC1tIDQw OTYNCg0KVENQIFNUUkVBTSBURVNUIHRvIDE5Mi4xNjguMC4xMDIgOiArLy0y LjUlIEAgOTklIGNvbmYuIDogaGlzdG9ncmFtDQpSZWN2ICAgU2VuZCAgICBT 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