Date: Wed, 20 Jun 2007 18:17:07 -0400 (EDT) From: David Cross <dcross@okcupid.com> To: Jeremy Chadwick <koitsu@FreeBSD.org> Cc: freebsd-hackers@FreeBSD.org Subject: Re: Very slow sed... Message-ID: <20070620181617.B48331@max.okcupid.com> In-Reply-To: <20070620155139.P48331@max.okcupid.com> References: <20070620100737.S56928@max.okcupid.com> <20070620192003.GA72641@eos.sc1.parodius.com> <20070620155139.P48331@max.okcupid.com>
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http://downloadmirror.intel.com/13348/ENG/MQ_1687_ReleaseNotes.pdf There it is, the smoking gun. Release 1676... wow.. .that's an obscure one. Thanks you all again! -- David E. Cross On Wed, 20 Jun 2007, David Cross wrote: > Thanks all.. it was the memory. It wasn't "bad".. .memtest (or anythign else > didn't actually fail, the only way I could tell is with a stopwatch and > watching loop times)... but pulling 1/2 of the RAM fixed it.. it doesn't > matter which set was in, as long as both sets its fine. > > -- > David E. Cross > > On Wed, 20 Jun 2007, Jeremy Chadwick wrote: > >> On Wed, Jun 20, 2007 at 10:24:01AM -0400, David Cross wrote: >>> Ok the subject line is misleading.. but I don't know how else to put it. >>> I >>> have a machine on which SOME programs are slow. VERY SLOW. Other >>> programs >>> run just fine. I cannot seem to find the source of the problem. >> >> Two things I can think of: >> >> 1) Memory issues -- memtest86 could help show this kind of problem. Try >> removing memory, and if the problem continues, swapping the pair you >> removed with the pair that's installed. >> >> 2) Disk issues -- reading /usr/bin/sed off the disk where there's a >> soon-to-be-bad block. The disk may be trying to work around it and >> doing a delayed read (inducing EC). This seems less likely to be the >> case than bad memory, but I've seen it happen. >> >> -- >> | Jeremy Chadwick jdc at parodius.com | >> | Parodius Networking http://www.parodius.com/ | >> | UNIX Systems Administrator Mountain View, CA, USA | >> | Making life hard for others since 1977. PGP: 4BD6C0CB | >> >
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