Re: [ANNOUNCE][RFC] PlugSched-6.1.6 for 2.6.15-rc5 and 2.6.15-rc5-mm2

[Peter Williams]

Peter Williams wrote:
> Peter Williams wrote:
>
> > This version features a major gutting of the SPA based schedulers to 
> > reduce overhead.  The inclusion of the mechanisms for gathering and 
> > displaying accrued scheduling statistics have been made a compile time 
> > configurable option (default is exclusion) as they are not an integral 
> > part of the scheduler and were mainly there to help with tuning.  In a 
> > future version they will be removed completely.
> >
> > Additionally, the mechanism for auto detection and preferential 
> > treatment of media streamers in the spa_ws scheduler has been made a 
> > compile time option (default is exclusion).  The reason for this is 
> > that my testing shows that the performance of media streamers on 
> > spa_ws is adequate without it.  This will also be removed in a future 
> > version unless requested otherwise.
> >
> > A patch for 2.6.15-rc5 is available at:
> >
> > <http://prdownloads.sourceforge.net/cpuse/plugsched-6.1.6-for-2.6.15-rc5.patch?download> 
>
>
>
> Applies cleanly to 2.6.15-rc7 so no new patch will be posted.

And the 2.6.15 official release.

> > and a patch for 2.6.15-rc5-mm2 is available at:
> >
> > <http://prdownloads.sourceforge.net/cpuse/plugsched-6.1.6-for-2.6.15-rc5-mm2.patch?download> 
> >
> >
> > Very Brief Documentation:
> >
> > You can select a default scheduler at kernel build time.  If you wish to
> > boot with a scheduler other than the default it can be selected at boot
> > time by adding:
> >
> > cpusched=<scheduler>
> >
> > to the boot command line where <scheduler> is one of: ingosched,
> > nicksched, staircase, spa_no_frills, spa_ws, spa_svr or zaphod.  If you
> > don't change the default when you build the kernel the default scheduler
> > will be ingosched (which is the normal scheduler).
> >
> > The scheduler in force on a running system can be determined by the
> > contents of:
> >
> > /proc/scheduler
> >
> > Control parameters for the scheduler can be read/set via files in:
> >
> > /sys/cpusched/<scheduler>/
> >
> > Peter


--
Peter Williams                                   pwil3058@xxxxxxxxxxxxxx

"Learning, n. The kind of ignorance distinguishing the studious."
 -- Ambrose Bierce
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