Nick Piggin <[email protected]> wrote:
>
> First I'll put up some numbers to get you interested - of a 64-way Altix
> with 64 processes each read-faulting in their own 512MB part of a 32GB
> file that is preloaded in pagecache (with the proper NUMA memory
> allocation).
I bet you can get a 5x to 10x reduction in ->tree_lock traffic by doing
16-page faultahead.
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