linux-kernel - Re: Choosing a HyperThreading/SMP/MultiCore kernel ?

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Message-Id: <20070112152904.86c7e167.pj@sgi.com>
Date:	Fri, 12 Jan 2007 15:29:04 -0800
From:	Paul Jackson <pj@....com>
To:	"Sunil Naidu" <akula2.shark@...il.com>
Cc:	lsorense@...lub.uwaterloo.ca, linux-kernel@...r.kernel.org
Subject: Re: Choosing a HyperThreading/SMP/MultiCore kernel ?

> Trying to understand, should I set CPUSETS=y

You don't need CPUSETS for this small a system.

But setting it is harmless - for example at least
one major commercial distribution enables CPUSETS
on almost all their product, most of which is running
on PC's less powerful than yours.

CPUSETS provides a facility for managing the memory
and processor placement of jobs running on what are
typically big NUMA systems.  Job X runs on CPUs 0-3
with memory on Nodes 0-1, while Job Y runs on CPUs
4-7 and Nodes 2-3.  And bigger ... to hundreds and
thousands of CPUs and Nodes.

-- 
                  I won't rest till it's the best ...
                  Programmer, Linux Scalability
                  Paul Jackson <pj@....com> 1.925.600.0401
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