Re: [Patch] Scale pidhash_shift/pidhash_size up based on num_possible_cpus().

From: Eric W. Biederman
Date: Fri Aug 01 2008 - 16:03:28 EST


Robin Holt <holt@xxxxxxx> writes:

> Oops, confusing details. That was a different problem we had been
> tracking.

Which leads back to the original question. What were you measuring
that showed improvement with a larger pid hash size?

Almost by definition a larger hash table will perform better. However
my intuition is that we are talking about something that should be in
the noise for most workloads.

Eric
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