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Date: Thu, 27 Sep 2012 21:31:05 -0700 From: Andi Kleen <andi@...stfloor.org> To: linux-kernel@...r.kernel.org Cc: x86@...nel.org, a.p.zijlstra@...llo.nl, eranian@...gle.com, acme@...hat.com Subject: perf PMU support for Haswell This adds perf PMU support for the upcoming Haswell core. The patchkit is fairly large, mainly due to various enhancement for TSX. TSX tuning relies heavily on the PMU, so I tried hard to make all facilities easily available. In addition it also has some other enhancements. This includes changes to the core perf code, to the x86 specific part, to the perf user land tools and to KVM High level overview: - Basic Haswell PMU support - Easy high level TSX measurement in perf stat -T - Generic transactional memory events, plus Haswell implementations. - Generic weightend profiling for memory latency and transaction abort costs. - Support for address profiling - Support for filtering events inside/outside transactions - KVM support to do this from guests - Support for filtering/sorting/bucketing transaction abort types based on PEBS information - LBR support for transactions For more details on the Haswell PMU please see the SDM. For more details on TSX please see http://halobates.de/adding-lock-elision-to-linux.pdf Review appreciated. -Andi -- 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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