Messages in this thread | | | Subject | Re: [PATCH v2] proc: speedup /proc/stat handling | From | Eric Dumazet <> | Date | Wed, 25 Jan 2012 06:29:32 +0100 |
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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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