Re: [PATCH] perf record: mmap output file - RFC

From: David Ahern
Date: Thu Sep 26 2013 - 14:12:16 EST


On 9/26/13 11:51 AM, Jiri Olsa wrote:
but it's still faster, since we finally get perf a chance to sleep ;-)

new time:
real 0m30.392s
user 0m0.041s
sys 0m0.389s

old time:
real 0m32.235s
user 0m3.080s
sys 0m14.444s

excellent.



[ perf record: Captured and wrote 8.203 MB /tmp/perf.data (~358388 samples) ]

Before I get too far down this path I wanted to get comments on the approach.

I think it's worthwhile doing this

If you can toss it onto your queue to run through it other use cases -- like the 'make -j' on kernel builds. I am doing the same here and if all goes well I submit with some other patches next week.

Thanks,

David
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