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

[Peter Williams <pwil3058@bigpond.net.au>]

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> 

Also applies cleanly to 2.6.15-rc6.

> 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@bigpond.net.au

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