From: Andi Kleen <andi@firstfloor.org>
To: x86@kernel.org
Cc: linux-kernel@vger.kernel.org, peterz@infradead.org
Subject: Updated MSR tracing patchkit v2
Date: Thu, 19 Mar 2015 17:29:26 -0700 [thread overview]
Message-ID: <1426811369-24565-1-git-send-email-andi@firstfloor.org> (raw)
This patchkit adds proper trace points for all MSR accesses. Very useful
for PMU (perf) debugging, but also various other CPU near areas.
Updated version:
- Now traces RDPMC too
- Add benchmarks on the overhead of moving MSR access out of line
next reply other threads:[~2015-03-20 0:29 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-20 0:29 Andi Kleen [this message]
2015-03-20 0:29 ` [PATCH 1/3] x86: Move msr accesses out of line Andi Kleen
2015-03-20 0:29 ` [PATCH 2/3] x86: Add trace point for MSR accesses Andi Kleen
2015-03-20 0:29 ` [PATCH 3/3] x86, perf: Trace rdpmc too Andi Kleen
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