Processor Scalability and Linux
Matthew J. Roth
mroth at imminc.com
Tue Aug 10 13:13:33 UTC 2010
JD wrote:
>
> To do that, you need a library interface or sysctl command line
> that would "affine" the process and it's threads to
> to a set of cpu's (I am not certain if there is granularity here
> as far as selecting a subset of cores from a cpu).
JD and Michael,
Take a look at taskset:
taskset is used to set or retrieve the CPU affinity of a running
process given its PID or to launch a new COMMAND with a given CPU
affinity. CPU affinity is a scheduler property that "bonds" a
process to a given set of CPUs on the system. The Linux scheduler
will honor the given CPU affinity and the process will not run on
any other CPUs.
Regards,
Matthew Roth
InterMedia Marketing Solutions
Software Engineer and Systems Developer
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