[PATCH 0/2] perf/x86/intel/pt: Optimizations
From: Alexander Shishkin
Date: Tue Nov 05 2019 - 03:27:12 EST
Hi Peter,
The first one was earlier part of the AUX sampling patchset, but wasn't
strictly sampling related. The second one is based on an observation that
between high-order AUX allocations and the Single Range output, we don't
have to reprogram buffer-related MSRs all of the time.
Alexander Shishkin (2):
perf/x86/intel/pt: Opportunistically use single range output mode
perf/x86/intel/pt: Prevent redundant WRMSRs
arch/x86/events/intel/pt.c | 129 ++++++++++++++++++++++++++++---------
arch/x86/events/intel/pt.h | 14 ++--
2 files changed, 109 insertions(+), 34 deletions(-)
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2.24.0.rc1