Re: [PATCHv2 00/25] perf tool: Add support for multiple data filestorage

[David Ahern]

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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