Messages in this thread | | | Date | Tue, 05 Feb 2013 09:15:20 -0700 | From | David Ahern <> | Subject | Re: [PATCH 2/2] perf scripts: Fix rwtop record script |
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On 2/5/13 9:05 AM, Jiri Olsa wrote: > Adding -D option into the rwtop record command line, to get > immediate response when there's event in the buffer.
Seems like this will dramatically increase CPU usage of perf-record as well as increase the overhead of each event with a process wakeup. How about a poll option on perf-record to have it wake up at a given rate instead?
David
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