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| author | Taeung Song <treeze.taeung@gmail.com> | 2016-01-08 11:39:33 (GMT) |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2016-01-26 14:52:47 (GMT) |
| commit | 2733525b8c1a5f9b6e55338d836b835c9c698913 (patch) | |
| tree | 9c56a173c0e3fec2c2676b0b8339ef93d4de1fa9 /tools/perf/Documentation | |
| parent | 3fa9f40718a33d27eb2f4bd36c13318a2d58839d (diff) | |
| download | linux-2733525b8c1a5f9b6e55338d836b835c9c698913.tar.xz | |
perf config: Document 'buildid.dir' variable in man page
Explain 'buildid.dir' variable.
Signed-off-by: Taeung Song <treeze.taeung@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/1452253193-30502-4-git-send-email-treeze.taeung@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/Documentation')
| -rw-r--r-- | tools/perf/Documentation/perf-config.txt | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/tools/perf/Documentation/perf-config.txt b/tools/perf/Documentation/perf-config.txt index ccbdb64..a095f0c 100644 --- a/tools/perf/Documentation/perf-config.txt +++ b/tools/perf/Documentation/perf-config.txt @@ -154,6 +154,21 @@ tui.*, gtk.*:: will make the TUI be the default for the 'top' subcommand. Those will be available if the required libs were detected at tool build time. +buildid.*:: + buildid.dir:: + Each executable and shared library in modern distributions comes with a + content based identifier that, if available, will be inserted in a + 'perf.data' file header to, at analysis time find what is needed to do + symbol resolution, code annotation, etc. + + The recording tools also stores a hard link or copy in a per-user + directory, $HOME/.debug/, of binaries, shared libraries, /proc/kallsyms + and /proc/kcore files to be used at analysis time. + + The buildid.dir variable can be used to either change this directory + cache location, or to disable it altogether. If you want to disable it, + set buildid.dir to /dev/null. The default is $HOME/.debug + SEE ALSO -------- linkperf:perf[1] |