From: Lin Ming <ming.m.lin@intel.com>
To: Peter Zijlstra <a.p.zijlstra@chello.nl>,
Ingo Molnar <mingo@elte.hu>, Andi Kleen <andi@firstfloor.org>,
Stephane Eranian <eranian@google.com>
Cc: lkml <linux-kernel@vger.kernel.org>
Subject: [PATCH 1/7] perf: Document enhanced event encoding for OFFCORE_MSR
Date: Mon, 27 Dec 2010 23:35:49 +0800 [thread overview]
Message-ID: <1293464149.2695.101.camel@localhost> (raw)
From: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
---
tools/perf/Documentation/perf-list.txt | 7 +++++++
1 files changed, 7 insertions(+), 0 deletions(-)
diff --git a/tools/perf/Documentation/perf-list.txt b/tools/perf/Documentation/perf-list.txt
index 399751b..22678d2 100644
--- a/tools/perf/Documentation/perf-list.txt
+++ b/tools/perf/Documentation/perf-list.txt
@@ -58,6 +58,13 @@ raw encoding of 0x1A8 can be used:
perf stat -e r1a8 -a sleep 1
perf record -e r1a8 ...
+Some special events on x86 encode additional data in the normally unused
+[32;63] bits of the raw value. This is particularly used for
+the OFFCORE_RESPONSE events on Intel Core i7. The 16bit
+mask in the OFFCORE_RESPONSE register is put into bits [32;48].
+For example the OFFCORE_RESPONSE_0.ANY_DATA.ANY_CACHE_DRAM event
+is encoded as r00007f11004301b7.
+
You should refer to the processor specific documentation for getting these
details. Some of them are referenced in the SEE ALSO section below.
--
1.7.3
reply other threads:[~2010-12-27 15:35 UTC|newest]
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