Messages in this thread Patch in this message | | | From | kan.liang@intel ... | Subject | [PATCH RFC V2 2/5] perf/documentation: Add description for period | Date | Tue, 7 Jul 2015 06:19:02 -0400 |
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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
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