Date: Mon, 30 Nov 2009 12:44:41 +0100 From: Thomas Backman <serenity@exscape.org> To: O. Hartmann <ohartman@zedat.fu-berlin.de> Cc: FreeBSD Stable <freebsd-stable@freebsd.org>, freebsd-questions@freebsd.org Subject: Re: Phoronix Benchmarks: Waht's wrong with FreeBSD 8.0? Message-ID: <9D847D35-A5A5-4A31-B045-76A39DEE8E54@exscape.org> In-Reply-To: <4B13AECE.2060005@zedat.fu-berlin.de> References: <4B13869D.1080907@zedat.fu-berlin.de> <0D3A9408-84A8-4C74-A318-F580B41FC1A6@exscape.org> <4B13AECE.2060005@zedat.fu-berlin.de>
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On Nov 30, 2009, at 12:38 PM, O. Hartmann wrote: > Thomas Backman wrote: >> On Nov 30, 2009, at 9:47 AM, O. Hartmann wrote: >>> I'm just wondering what's wrong with FreeBSD 8.0/amd64 when I read = the Benchmarks on Phoronix.org's website. Especially FreeBSD's threaded = I/O shows in contrast to all claims that have been to be improoved the = opposite. >> Corrected link: = http://www.phoronix.com/scan.php?page=3Darticle&item=3Dfreebsd8_benchmarks= &num=3D1 >> And yeah, quite honestly: disk scheduling in FreeBSD appears to = suck... The only reason I'm not switching from Linux. :( >> Regards, >> Thomas >> (PS. See my thread about horrible console latency during disk IO in = the archives, very related. DS.) >=20 > Hello Thomas. > I recall myself having had similar problems during heavy disk I/O (UFS = and ZFS) with stuck console, stuck clients and especially stuck = X11-clients. The discussion was really 'hot', but in the end no clear = statement was made whether this is disk-i/o related or a deeper problem = in the scheduler. >=20 > Sorry for the lack of the link, I thought Phoronix is well known ... >=20 > Oliver That's too bad, re: the scheduling. It seems to be a quite universal = problem, yet I haven't seen much effort spent on working on the problem. = :/ Re: phoronix, I commented mostly because the site is .com and not .org, = so I came to a parked domain when I clicked your link. :) Also, I figured linking directly to the article will help the archives. Regards, Thomas=
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