On Fri, May 31, 2013 at 02:48:05PM +0200, Ingo Molnar wrote: > A kernel command line does not make it very practical - this needs to > be accessible from tooling ...
It will be accessible from tooling since the event is always enabled and with the persistent pmu you spacify that you want to consume already created buffers, i.e. the persistent event. However, you need to be able to enable such event as early as possible for tasks like boot tracing. I don't care if it is a kernel command line param or something else - in the end of the day we need a mechanism to say "enable this event the earliest moment possible, after you've enabled the perf subsystem." Hmm. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
