Messages in this thread | | | Subject | Re: [PATCH 2/2] perf: Userspace software event and ioctl | From | Pawel Moll <> | Date | Fri, 26 Sep 2014 12:26:37 +0100 |
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On Fri, 2014-09-26 at 12:23 +0100, Ingo Molnar wrote: > > As in: allows *all* tasks to inject the data? Are you sure we > > don't want more fine-grained control, in particular per task? > > Yeah. If the profiler allows it, then any task that is being > traced can inject data.
The "that is being traced" fragment was the key here. I missed the fact that perf trace already takes a list of pids, so we're not talking about all tasks in the system. That should work.
Paweł
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