Re: Inquiry: Should we remove "isolcpus= kernel boot option? (mayhave realtime uses)

From: Max Krasnyansky
Date: Wed Jun 04 2008 - 15:31:34 EST




Paul Jackson wrote:
> Max wrote:
>> You do not even need to replace /sbin/init for this, no ?
>> Simply installing custom
>> /etc/init.d/create_cpusets
>
> That can ensure that the deamons that init starts later
> on placed, but it doesn't ensure that the glibc pages that
> init (and the shell it spawned to run 'create_cpusets')
> are placed.

Ah, I missed the memory placement part. As far cpu placement goes the result
would be equivalent but not for memory.

btw Are you guys using some kind of castrated, statically linked shell to run
that script ? Otherwise regular shell and friends will suck in the same glibc
pages as the regular init would.

Max
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