Messages in this thread | | | From | Andi Kleen <> | Subject | Basic perf PMU support for Haswell v2 | Date | Thu, 31 Jan 2013 14:51:38 -0800 |
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This is based on v7 of the full Haswell PMU support, but ported to the latest perf/core and stripped down to the "basic support" as requested. I consider all of this basic support for Haswell usage. although it's a bit more than what you need if you never use -e cpu// or -b options. I decided to include LBRs in the basic support.
Contains support for: - Basic Haswell PMU and PEBS support - Late unmasking of the PMI - Support for wide counters - New TSX counter flags, exported as sysfs attributes - Support for checkpointed counters. - New LBR flags, exported as new flags with tools support
Available from git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-misc hsw/pmu5-basics
For more details on the Haswell PMU please see the SDM (Vol 3A, Chapter 19.2) http://www.intel.com/content/www/us/en/processors/architectures-software-developer-manuals.html For more details on TSX please see http://halobates.de/adding-lock-elision-to-linux.pdf or next week's LWN.
v2: Addressed Stephane's feedback. See individual patches for details.
-Andi
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