Re: [ANNOUNCE][RFC] PlugSched-6.4 for 2.6.18-rc2

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Peter Williams wrote:
>
> This version removes the hard/soft CPU rate caps from the SPA schedulers.
>
> A patch for 2.6.18-rc2 is available at:
>
> <http://prdownloads.sourceforge.net/cpuse/plugsched-6.4-for-2.6.18-rc2.pat
>ch?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>

Any reason dynsched couldn't be merged with plugsched?

> to the boot command line where <scheduler> is one of: ingosched,
> ingo_ll, nicksched, staircase, spa_no_frills, spa_ws, spa_svr, spa_ebs
> 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

It may be really great, to allow schedulers perPid parent, thus allowing the 
stacking of different scheduler semantics.  This could aid flexibility a 
lot.

Worth a try, and should be easy to implement.

> Control parameters for the scheduler can be read/set via files in:
>
> /sys/cpusched/<scheduler>/

Thanks for the most important out-of-tree patch that makes 2.6 reasonable.

--
Al

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