On Mon, 26 Jan 2009, Shane R. Spencer wrote:
> Also yall,
> The amount of cores involved is mostly pointless. You're running a
> multi-tasking operating system :)
I disagree with this. Multitasking on a single core means a context switch
for the processor to stop one process and allow another to execute.
Multitasking on a SMT processor like the original P4s where both pipelines
are not equal (only one virtual processor would have a fully functional ALU)
can actually cause performance degradation in some workloads as well.
Having multiple cores, however, means concurrent execution of more than one
process at a time, and can significantly improve parallelized workloads.
--Arthur Corliss
Live Free or Die
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Received on Mon Jan 26 10:34:49 2009
This archive was generated by hypermail 2.1.8 : Mon Jan 26 2009 - 10:34:49 AKST