Re: [RFC, PATCH] Avoid hot statistics cache line in ext4 extent cache

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On Fri, Apr 13, 2012 at 10:53 AM, Tim Chen <tim.c.chen@xxxxxxxxxxxxxxx> wrote:
>>
>> Do you have numbers?
>
> In a benchmark that does mmaped-read, there is a 28% speed up
> after getting rid of the counters.

Ok, that's big. But is it any actual real workload on a real
filesystem? It looks like this should only happen for actual IO, so I
get the feeling that this is some made-up benchmark for a filesystem
on a RAM-disk?

                  Linus
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