Re: [PATCHv2 00/25] perf tool: Add support for multiple data filestorage
From: David Ahern
Date: Mon Sep 09 2013 - 10:11:19 EST
On 9/9/13 7:03 AM, Jiri Olsa wrote:
my usage currently is to having this running during the day:
(well whenever I remember to run it.. ;-) )
[jolsa@krava perf]$ sudo ./perf record -g -M 1m -a
and checking report when the system or app get stuck
with multiple files I can just easily (or automaticaly)
remove old ones without restarting session
Aren't you losing potentially important events by doing that -- FORK,
COMM, MMAP?
I have a flight recorder style command that address this problem
(long-running/daemons) by processing task events and then stashing the
sample events on a time-ordered list with chopping to maintain the time
window.
David
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