RFC perf: x86 RDPMC and RDTSC support

Peter Zijlstra lkml 1 version Nov 21, 2011 In review

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v1 RFC Latest Nov 21, 20116 patches 41 repliesIn review

Patches in v1 No applies recorded yet

#	Subject and files	Size	Replies
1/6	perf: Update the mmap control page on mmap()`kernel/events/core.c`	+2 -0	0 replies
2/6	perf, arch: Rework perf_event_index()`arch/arm/include/asm/perf_event.h` `arch/arm/kernel/perf_event.c` `arch/frv/include/asm/perf_event.h` +7 more	+31 ~~-18~~	17 replies
3/6	perf, x86: Implement userspace RDPMC`arch/x86/kernel/cpu/perf_event.c`	+15 -0	0 replies
4/6	perf, x86: Provide means of disabling userspace RDPMC`arch/x86/kernel/cpu/perf_event.c` `arch/x86/kernel/cpu/perf_event.h` `include/linux/perf_event.h` +1 more	+64 -1	0 replies
5/6	perf: Extend the mmap control page with time (TSC) fields`arch/x86/kernel/cpu/perf_event.c` `include/linux/perf_event.h` `kernel/events/core.c`	+31 -8	1 reply
6/6	perf, tools: X86 RDPMC, RDTSC test`tools/perf/builtin-test.c`	+129 -0	4 replies

Reviews trailers per patch

1 of 6 patches has a Reviewed-by or Acked-by.

Patch	Eric B Munson	Will Deacon
1/6
2/6	A-b	A-b
3/6
4/6
5/6
6/6

Trailers given in replies are filled; those carried in the patches from earlier versions are outlined with dashes.

Read the v1 thread

Cover letter [RFC][PATCH 0/6] perf: x86 RDPMC and RDTSC support

These few patches implement x86 RDPMC support and add an extention to the self monitoring data to also allow additional time updates using userspace TSC reads.

There's a few loose ends, but it mostly seems to work.

Read the cover letter in its thread