Messages in this thread | | | From | Alexander Shishkin <> | Subject | [PATCH 0/4] perf, pt, coresight: AUX flags and VMX update | Date | Mon, 20 Feb 2017 15:33:48 +0200 |
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Hi Peter,
With the vmm_exclusive=0, PT seems to be much more usable on BDW now. This patchset does three things: * adds a flag to PERF_RECORD_AUX, signalling that a transaction has gaps in it (due to VMX root mode kicking in), * changes the AUX API slightly to allow for flags to be set at arbitrary points between perf_aux_output_begin() and perf_aux_output_end(), * restarts PT after VMXOFF.
I also stole Will's patch from another patchset that adds EXPORT_SYMBOL_GPL to the AUX calls, which is not strictly relevant, but happens to touch the same area and is long overdue. The AUX flags patch is also based on Will's patch from that same context.
Alexander Shishkin (2): perf: Add a flag for partial AUX records perf/x86/intel/pt: Handle VMX better
Will Deacon (2): perf: Export AUX buffer helpers to modules perf: Keep AUX flags in the output handle
arch/x86/events/intel/bts.c | 16 +++---- arch/x86/events/intel/pt.c | 55 +++++++++++++----------- arch/x86/events/intel/pt.h | 1 - drivers/hwtracing/coresight/coresight-etb10.c | 7 ++- drivers/hwtracing/coresight/coresight-etm-perf.c | 9 ++-- drivers/hwtracing/coresight/coresight-priv.h | 2 - drivers/hwtracing/coresight/coresight-tmc-etf.c | 7 ++- include/linux/coresight.h | 2 +- include/linux/perf_event.h | 8 ++-- include/uapi/linux/perf_event.h | 1 + kernel/events/ring_buffer.c | 38 +++++++++++----- 11 files changed, 81 insertions(+), 65 deletions(-)
-- 2.11.0
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