Re: How can I optimize a process on a NUMA architecture(x86-64 specifically)?

[Martin J. Bligh]

> Say you have a bunch of single-threaded processes on a NUMA machine. 
> Does the kernel make sure to prefer allocations using a certain CPU's 
> memory, preferring to run a given process on the CPU which contains 
> its memory?  Or should I use the NUMA API(libnuma) to spell this out 
> to the kernel? Does the kernel do the right thing in this case?

The kernel will generally do the right thing (process local alloc) by
default. In 99% of cases, you don't want to muck with it - unless you're
running one single app dominating the whole system, and nothing else is
going on, you probably don't want to specify anything explicitly.

M.

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