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Message-ID: <4B9142A1.7090605@linux.vnet.ibm.com> Date: Fri, 05 Mar 2010 09:42:57 -0800 From: Corey Ashford <cjashfor@...ux.vnet.ibm.com> To: LKML <linux-kernel@...r.kernel.org> Subject: Re: [RFC] [PATCH 1/1] perf: add support for arch-dependent symbolic event names to "perf stat" (I posted this yesterday, but I think LKML rejected it because there was more quoted text than my text. So I am reposting with no quoted text). A couple of follow-up comments on this patch: This functionality was designed to provide a generalized interface to an external event name -> attr struct library, such as libpfm4. libpfm4 has an interface that nearly exactly matches parse_*_event() profiles, so it's quite easy to write a small wrapper function to call libpfm4's function. Ingo Molnar discussed adding some visibility to the arch-dependent event names through some other interface, such as through /sys/devices/pmus perhaps, but that discussion is a long way (as far as I know) from having something usable today. So you could think of this external library approach to be a stop-gap until something better is developed. When/if that new event naming mechanism becomes available, we can easily remove this external library support from perf. -- Regards, - Corey Corey Ashford Software Engineer IBM Linux Technology Center, Linux Toolchain Beaverton, OR cjashfor@...ibm.com -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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