On Wed, 1 Mar 2006, Andi Kleen wrote:
> > No need to implement a sysctl for this. The current cpuset facility
> > should provide just what you want, if I am understanding correctly.
>
> The main reason i'm reluctant to use this is that the cpuset fast path
> overhead (e.g. in memory allocators etc.) is quite large and I wouldn't like
> to recommend people to enable all this overhead by default just to get
> more useful dcache/inode behaviour on small NUMA systems.
Is this a gut feeling or do you have some measurements to back that up?
Paul worked hard on making all the overhead in critical paths as light as
possible and from what I can see he did a very good job.
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