From 84ee74affccc93b02dee5a986dfe214f4eaa08d3 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Thu, 13 Oct 2016 10:57:13 -0700 Subject: [PATCH] perf record: Improve documentation of event parameters - Some editing (params -> parameters) - Point to the now more complete list of parameters in the perf list manpage. Signed-off-by: Andi Kleen Cc: Jiri Olsa Link: http://lkml.kernel.org/r/1476381433-22959-1-git-send-email-andi@firstfloor.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/Documentation/perf-record.txt | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/tools/perf/Documentation/perf-record.txt b/tools/perf/Documentation/perf-record.txt index 92335193dc33..27fc3617c6a4 100644 --- a/tools/perf/Documentation/perf-record.txt +++ b/tools/perf/Documentation/perf-record.txt @@ -45,9 +45,9 @@ OPTIONS param1 and param2 are defined as formats for the PMU in: /sys/bus/event_source/devices//format/* - There are also some params which are not defined in ...//format/*. + There are also some parameters which are not defined in ...//format/*. These params can be used to overload default config values per event. - Here is a list of the params. + Here are some common parameters: - 'period': Set event sampling period - 'freq': Set event sampling frequency - 'time': Disable/enable time stamping. Acceptable values are 1 for @@ -57,8 +57,11 @@ OPTIONS FP mode, "dwarf" for DWARF mode, "lbr" for LBR mode and "no" for disable callgraph. - 'stack-size': user stack size for dwarf mode + + See the linkperf:perf-list[1] man page for more parameters. + Note: If user explicitly sets options which conflict with the params, - the value set by the params will be overridden. + the value set by the parameters will be overridden. Also not defined in ...//format/* are PMU driver specific configuration parameters. Any configuration parameter preceded by