From owner-freebsd-lite2 Thu Oct 10 07:30:43 1996 Return-Path: owner-lite2 Received: (from root@localhost) by freefall.freebsd.org (8.7.5/8.7.3) id HAA21237 for lite2-outgoing; Thu, 10 Oct 1996 07:30:43 -0700 (PDT) Received: from crh.cl.msu.edu (crh.cl.msu.edu [35.8.1.24]) by freefall.freebsd.org (8.7.5/8.7.3) with ESMTP id HAA21231 for ; Thu, 10 Oct 1996 07:30:41 -0700 (PDT) Received: (from henrich@localhost) by crh.cl.msu.edu (8.7.6/8.7.3) id KAA00237; Thu, 10 Oct 1996 10:29:58 -0400 (EDT) From: Charles Henrich Message-Id: <199610101429.KAA00237@crh.cl.msu.edu> Subject: Re: Delayed write patch To: dfr@render.com (Doug Rabson) Date: Thu, 10 Oct 1996 10:29:58 -0400 (EDT) Cc: simokawa@sat.t.u-tokyo.ac.jp, lite2@freebsd.org In-Reply-To: from Doug Rabson at "Oct 10, 96 01:17:25 pm" X-Mailer: ELM [version 2.4ME+ PL22 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-lite2@freebsd.org X-Loop: FreeBSD.org Precedence: bulk > Thanks for the patch. It improves performance for my SGI from ~720k/sec > to ~870k/sec. I modified the patch (and the nfs_dwrite patch) slightly > and added comments to try to explain what is happening. Could you check > the comments to make sure they agree with your understanding of the > problem and I will commit this patch to current probably tomorrow. A few more observations. I did more performance tests with the v2 UDP, as per usual all were not good. I did notice that the system was being locked out during the tests, but not solid, I.e. after a few seconds my other transactions (to different NFS hosts) would make it out and back. I then switched the TCP v3, this didnt help at first? After about the third test everything starting running extremely well, however I do not believe the results. After completing my tests I attempted to unmount the sun, no such luck "device busy". It took a reboot (which reported "Unabl to unmount") to clear that up. Next test, after the clean boot. CP the netscape binary to the partition, that worked fine. However, when I then did an rm on the netscape binary, my system locked up dead solid. I think im going to back out those patches :) -Crh Charles Henrich Michigan State University henrich@msu.edu http://pilot.msu.edu/~henrich