From: Arnaldo Carvalho de Melo <[email protected]> There was a provision for setting this variable, but not the getenv("PERF_CONFIG") call to set it, as this was fixed in the previous cset, document that it can be used to ask for using an alternative .perfconfig file or to disable reading whatever file exists in the system or home directory, i.e. using:
export PERF_CONFIG=/dev/null Cc: Adrian Hunter <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Luis Cláudio Gonçalves <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Taeung Song <[email protected]> Link: https://lkml.kernel.org/n/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]> --- tools/perf/Documentation/perf-config.txt | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/tools/perf/Documentation/perf-config.txt b/tools/perf/Documentation/perf-config.txt index e4aa268d2e38..c599623a1f3d 100644 --- a/tools/perf/Documentation/perf-config.txt +++ b/tools/perf/Documentation/perf-config.txt @@ -40,6 +40,10 @@ The '$HOME/.perfconfig' file is used to store a per-user configuration. The file '$(sysconfdir)/perfconfig' can be used to store a system-wide default configuration. +One an disable reading config files by setting the PERF_CONFIG environment +variable to /dev/null, or provide an alternate config file by setting that +variable. + When reading or writing, the values are read from the system and user configuration files by default, and options '--system' and '--user' can be used to tell the command to read from or write to only that location. -- 2.21.0
