* [LARTC] What value to set to Hz ? @ 2002-10-16 9:24 raptor 2002-10-16 18:19 ` Pedro Larroy 0 siblings, 1 reply; 2+ messages in thread From: raptor @ 2002-10-16 9:24 UTC (permalink / raw) To: lartc hi, I was always setting HZ to 1000 when I compiled QoS kernel ... i knowed it shedules tasks more often and that was my presumtion that this way qos channel polices will be enforced better (of cource will have greater sheduling overhead) .... but now u can get much better picture if u read this : http://kerneltrap.org/node.php?idF4 hope it is interesting raptor _______________________________________________ LARTC mailing list / LARTC@mailman.ds9a.nl http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/ ^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [LARTC] What value to set to Hz ? 2002-10-16 9:24 [LARTC] What value to set to Hz ? raptor @ 2002-10-16 18:19 ` Pedro Larroy 0 siblings, 0 replies; 2+ messages in thread From: Pedro Larroy @ 2002-10-16 18:19 UTC (permalink / raw) To: lartc On Wed, Oct 16, 2002 at 12:17:39PM -0400, raptor wrote: > hi, > > I was always setting HZ to 1000 when I compiled QoS kernel ... i knowed it shedules tasks more often and that was my presumtion that this way qos channel polices will be enforced better (of cource will have greater sheduling overhead) .... but now u can get much better picture if u read this : > > http://kerneltrap.org/node.php?idF4 > > hope it is interesting > > raptor > _______________________________________________ > LARTC mailing list / LARTC@mailman.ds9a.nl > http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/ It's better to change /usr/src/linux/include/net/pkt_sched.h PSCHED_CLOCK_SOURCE to PSCHED_CPU if you have a cpu with timestamp counter (TSC) that will give you Mhz timer granularity. Regards. -- ... ___________________________________________________________ ... | /| |\ | | /-| Pedro Larroy Tovar. PiotR | http://omega.resa.es/piotr |-\ | | /--| No MS-Office attachments please. |--\ | o-|--| e-mail: piotr@omega.resa.es |--|-o | \-| finger piotr@omega.resa.es for public key and info |-/ | |...\|_________________________________________________________|/...| _______________________________________________ LARTC mailing list / LARTC@mailman.ds9a.nl http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/ ^ permalink raw reply [flat|nested] 2+ messages in thread
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