Date: Tue, 24 May 2005 09:56:36 -0700 From: Freddie Cash <fcash@ocis.net> To: stable@freebsd.org Subject: Re: Performance of 4.x vs 5.x (Re: Lifetime of FreeBSD branches) Message-ID: <200505240956.37048.fcash@ocis.net> In-Reply-To: <4293571C.1040109@incubus.de> References: <3248.172.16.0.199.1116876092.squirrel@172.16.0.1> <200505240922.42822.fcash@ocis.net> <4293571C.1040109@incubus.de>
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On May 24, 2005 09:32 am, you wrote: > Freddie Cash wrote: > > The laptop has an ATI IXP chipset, which means the HD is detected and > > run as a generic UDMA33 device. The kernel is using the 4BSD > > scheduler with PREEMPTION enabled, all debugging hints disabled, and > > all the mpsafe sysctls enabled. > Hmm.. maybe the disk (interface) is just too slow to trigger this when > running in UDMA33 (and a slow notebook disk).. I have observed it on a > SATA Seagate setup (on ICH6 chipset). Just a wild guess. That is a possibility, yes. Next time I upgrade Firefox or Thunderbird, I'll have to watch the processor and disk usage to see if that's the case. -- Freddie Cash fcash@ocis.net
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