so much clock interrupts?!
cswiger at mac.com
Sun Nov 27 03:27:44 GMT 2005
> On Fri, Nov 25, 2005 at 07:45:03AM +0100, Markus Trippelsdorf wrote:
>> 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.
The default settings try to give a 1-millisecond timing granularity, which
seems to work pretty well on Pentium-grade and above hardware. Desktop tasks
now include soft realtime work like displaying video clips, and obviously
realtime 3D games benefit from it HZ=1000.
> I'm also wondering wether 1000 Hz on a Soekris net4801 (Geode 266 MHz)
> won't be overkill. I'm planning to migrate some of them from 5.4 to 6.0,
> and doubting wether to change the new default to its more conservative
> previous setting of 100 Hz.
For what it's worth, I have kern.hz="200" in /boot/loader.conf on an EPIA-M6000
More information about the freebsd-questions