From: kan.liang@intel.com
To: acme@kernel.org, jolsa@kernel.org
Cc: namhyung@kernel.org, ak@linux.intel.com,
linux-kernel@vger.kernel.org, Kan Liang <kan.liang@intel.com>
Subject: [PATCH RFC V3 2/5] perf/documentation: Add description for period
Date: Wed, 8 Jul 2015 04:44:54 -0400 [thread overview]
Message-ID: <1436345097-11113-3-git-send-email-kan.liang@intel.com> (raw)
In-Reply-To: <1436345097-11113-1-git-send-email-kan.liang@intel.com>
From: Kan Liang <kan.liang@intel.com>
'period' param is not defined in
/sys/bus/event_sources/devices/<pmu>/format/*
Signed-off-by: Kan Liang <kan.liang@intel.com>
---
tools/perf/Documentation/perf-record.txt | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/tools/perf/Documentation/perf-record.txt b/tools/perf/Documentation/perf-record.txt
index 9b9d9d0..5b47b2c 100644
--- a/tools/perf/Documentation/perf-record.txt
+++ b/tools/perf/Documentation/perf-record.txt
@@ -45,6 +45,14 @@ OPTIONS
param1 and param2 are defined as formats for the PMU in:
/sys/bus/event_sources/devices/<pmu>/format/*
+ There are also some params which are not defined in .../<pmu>/format/*.
+ These params can be used to set event defaults.
+ Here is a list of the params.
+ - 'period': Set event sampling period
+
+ Note: If user explicitly sets options which conflict with the params,
+ the value set by the params will be overridden.
+
- a hardware breakpoint event in the form of '\mem:addr[/len][:access]'
where addr is the address in memory you want to break in.
Access is the memory access type (read, write, execute) it can
--
1.8.3.1
next prev parent reply other threads:[~2015-07-08 16:00 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-08 8:44 [PATCH RFC V3 0/5] partial callgrap and time support kan.liang
2015-07-08 8:44 ` [PATCH RFC V3 1/5] perf,tools: introduce OPT_CALLBACK_SET/OPT_CALLBACK_NOOPT_SET kan.liang
2015-07-14 6:54 ` Jiri Olsa
2015-07-08 8:44 ` kan.liang [this message]
2015-07-14 6:55 ` [PATCH RFC V3 2/5] perf/documentation: Add description for period Jiri Olsa
2015-07-14 14:05 ` Arnaldo Carvalho de Melo
2015-07-21 9:31 ` [tip:perf/core] perf record: Document setting '-e pmu/period=N/' in man page tip-bot for Kan Liang
2015-07-08 8:44 ` [PATCH RFC V3 3/5] perf,tool: partial time support kan.liang
2015-07-13 13:27 ` Namhyung Kim
2015-07-13 19:01 ` Liang, Kan
2015-07-14 1:04 ` Namhyung Kim
2015-07-15 19:03 ` Liang, Kan
2015-07-17 7:12 ` Namhyung Kim
2015-07-14 6:54 ` Jiri Olsa
2015-07-14 6:54 ` Jiri Olsa
2015-07-08 8:44 ` [PATCH RFC V3 4/5] perf,tool: partial callgrap support kan.liang
2015-07-08 8:44 ` [PATCH RFC V3 5/5] perf,tests: Add tests to callgrap and time parse kan.liang
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