On Fri, Nov 25, 2005 at 07:45:03AM +0100, Markus Trippelsdorf wrote: > On Thu, Nov 24, 2005 at 03:43:59PM -0500, Kris Kennaway wrote: > > On Thu, Nov 24, 2005 at 07:40:40AM +0000, Markus Trippelsdorf wrote: > > > On 2005-11-24, Wojciech Puchar <[EMAIL PROTECTED]> 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. > > > Yes, I guess it increases performance on a high throughput webserver or > router that uses polling. > But on the Desktop it only increases the overhead without any benefits > at all. 2000 interrupts per second per core for the timer is a > ridiculous high number and I reduce it simply for aesthetic reasons. > This may be a religious issue and everyone should use what he or she > seems fitting.
You should do what makes you feel happy, of course :) Kris
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