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SubjectRe: [PATCH v2] proc: speedup /proc/stat handling
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Le mardi 24 janvier 2012 à 17:27 -0800, Andrew Morton a écrit :

> I had a fiddle on an 8-way x86_64 machine. I'm unable to demonstrate
> any improvement for either of
>
> time (for i in $(seq 1000); do; cat /proc/self/stat > /dev/null; done)
> time (for i in $(seq 1000); do; cat /proc/1/stat > /dev/null; done)
>
> oh well.

What size is /proc/stat ?

wc -c /proc/stat

If under 4096, there is no problem with existing code.

I had the problem on a 16-way machine.





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