Ingo Molnar wrote:
* Chris Friesen <cfriesen@xxxxxxxxxx> wrote:
Regardless of sampling method, don't you still want some way to
enable/disable the various counters as close to simultaneously as
possible?
If it's about counter control for the monitored task, then we sure could
do something about that. (apps/libraries could thus select a subset of
functions to profile/measure, runtime, etc.)
If it's about counter control for the profiler/debugger, i'm not sure how
useful that is - do you have a good usecase for it?
I'm sure that others could give more usecases, but I was thinking about
cases like "I want to test _these_ multiple metrics simultaneously over
_this_ specific section of code". In a case like this, it seems
desirable to start/stop the various performance counters as close
together as possible, especially if the section of code being tested is
short.
Chris
--
To unsubscribe from this list: send the line "unsubscribe linux-arch" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
