Date: Thu, 24 Nov 2005 15:43:59 -0500 From: Kris Kennaway <kris@obsecurity.org> To: Markus Trippelsdorf <Markus@trippelsdorf.de> Cc: freebsd-questions@freebsd.org Subject: Re: so much clock interrupts?! Message-ID: <20051124204359.GD30073@xor.obsecurity.org> In-Reply-To: <slrndoarjo.2d8m.Markus@bsd.trippelsdorf.de> References: <20051124013438.T8326@chylonia.3miasto.net> <slrndoarjo.2d8m.Markus@bsd.trippelsdorf.de>
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[-- Attachment #1 --] On Thu, Nov 24, 2005 at 07:40:40AM +0000, Markus Trippelsdorf wrote: > On 2005-11-24, Wojciech Puchar <wojtek@tensor.3miasto.net> wrote: > > that's what i see in systat with FreeBSD 6.0/i386-SMP > > > > > > 540 534 99 pdwak 2000 cpu0: time > > 16825 pdpgs 2000 cpu1: time > > > > > > on FreeBSD 5.3 live CD i have 100 not 2000 times per second > > > > isn't it too much?! > > Yes it is. > That's why I have kern.hz="100" in my /boot/loader.conf . Have you been able to measure a performance benefit from reducing it? Have you shown that reducing it does not cause your performance to *drop*? It was increased for a reason..it actually increases performance on some workloads. Kris [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2 (FreeBSD) iD8DBQFDhiYPWry0BWjoQKURAmzYAJ96qlY/c3tV4SdoABOiIB6SCCG36wCaAxJq GQ4PiorNI9rAMixpJGvXL8Q= =+Br2 -----END PGP SIGNATURE-----
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