Date: Tue, 25 Jan 2005 00:08:52 +0200 From: Petri Helenius <pete@he.iki.fi> To: Nick Pavlica <linicks@gmail.com> Cc: freebsd-questions@freebsd.org Subject: Re: FreeBSD 5.3 I/O Performance / Linux 2.6.10 | Continued Discussion Message-ID: <41F571F4.1090504@he.iki.fi> In-Reply-To: <dc9ba0440501241359344adce1@mail.gmail.com> References: <dc9ba0440501241359344adce1@mail.gmail.com>
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Are you sure you aren't comparing filesystems with different mount options? Async comes to mind first. Pete Nick Pavlica wrote: >All, > I would like to start addressing some of the feedback that I have >been given. I started this discussion because I felt that it was >important to share the information I discovered in my testing. I also >want to reiterate my earlier statement that this is not an X vs. X >discussion, but an attempt to better understand the results, and >hopefully look at ways of improving the results I had with FreeBSD >5.x. I'm also looking forward to seeing the improvements to the 5.x >branch as it matures. I want to make it very clear that this is NOT A >"Religious/Engineering War", please don't try to turn it into one. > >That said, lets move on to something more productive. I installed >both operating systems using as many default options as possible and >updated them with all of the latest patches. I was logged in via SSH >from my workstation while running the tests. I didn't have X, running >on any of the installations because it wasn't need. CPU and RAM >utilization wasn't an issue during any of the tests, but the disk I/O >performance was dramatically different. Please keep in mind that I >ran these tests over and over to see if I had consistent results. I >even did the same tests on other pieces of equipment not listed in my >notes that yielded the same results time and time again. Some have >confirmed that they have had similar results in there testing using >other testing tools and methods. This makes me wounder why the gap is >so large, and how it can be improved? > >I think that it would be beneficial to have others in this group do >similar testing and post there results. This may help those that are >working on the OS itself to find trouble areas, and ways to improve >them. It may also help clarify many of the response questions because >you will be able to completely control the testing environment. I >look forward to seeing the testing results, and any good feedback that >helps identify specific tuning options, or bugs that need to be >addressed. > >Thanks! >--Nick Pavlica >--Laramie, WY >_______________________________________________ >freebsd-performance@freebsd.org mailing list >http://lists.freebsd.org/mailman/listinfo/freebsd-performance >To unsubscribe, send any mail to "freebsd-performance-unsubscribe@freebsd.org" > >
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