On Mon, 2014-09-01 at 17:30 +0100, Peter Zijlstra wrote: > On Wed, Aug 20, 2014 at 03:35:57PM +0300, Alexander Shishkin wrote: > > This patchset adds support for Intel Processor Trace (PT) extension [1] of > > Intel Architecture that allows the capture of information about software > > execution flow, to the perf kernel infrastructure.
I'm particularly excited about the "to the perf kernel infrastructure" :-) > It would also be good if some other archs can comment on this (the > generic parts obviously). There is the ARM CoreSight stuff We've got Mathieu Poirier at Linaro working on the drivers for CoreSight components, with the latest (v5) version here: http://thread.gmane.org/gmane.linux.ports.arm.kernel/351654 but it was mostly intended to have the processor trace decoded using a separate tool in userspace. I must say that an idea of getting it all into perf sounds really interesting. I've copied Mathieu so he can have a look as well. As for me personally, I'd like to have 48 hours to digest it all. I've just got back from a very distant time zone and am suffering a monumental jet lag... Paweł -- 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/
