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authorArnaldo Carvalho de Melo <acme@redhat.com>2012-12-07 16:28:27 -0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2012-12-09 08:46:08 -0300
commitfbb6976c2f7a6ab2c4d8511181d686f5f2aaf476 (patch)
treee4fab6b002a79a4479370da7432618e66fdd895a /tools/perf/Documentation/perf-buildid-cache.txt
parent417c2ff6806fd9183cb36682dcf32c4d068aba5e (diff)
downloadlinux-fbb6976c2f7a6ab2c4d8511181d686f5f2aaf476.tar.gz
perf buildid-cache: Add option to show build ids that are missing in the cache
This will allow to connect with services being put in place by distros such as Fedora, where one can retrieve DSOs by their build-id. Example usage: for buildid in $(perf buildid-cache --missing perf.data | cut -d' ' -f1) ; do echo "trying to get $buildid" wget -q https://darkserver.fedoraproject.org/buildids/$buildid cat $buildid ; echo rm -f $buildid done Now its just a matter of some porcelain to get the details provided by such a service, retrieve the file and use 'perf buildid-cache --add $FILE' to insert it in the cache, then use 'perf report' or 'annotate' that will find the required files in the cache. More information about the darkserver service at: https://darkserver.fedoraproject.org/ Cc: David Ahern <dsahern@gmail.com> Cc: Frank Eigler <fche@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Kushal Das <kdas@redhat.com> Cc: Mark Wielaard <mjw@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-6fuktuiyjn4jykxmt7c9f7xq@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/Documentation/perf-buildid-cache.txt')
-rw-r--r--tools/perf/Documentation/perf-buildid-cache.txt3
1 files changed, 3 insertions, 0 deletions
diff --git a/tools/perf/Documentation/perf-buildid-cache.txt b/tools/perf/Documentation/perf-buildid-cache.txt
index c1057701a7dc..8e798baae0fd 100644
--- a/tools/perf/Documentation/perf-buildid-cache.txt
+++ b/tools/perf/Documentation/perf-buildid-cache.txt
@@ -24,6 +24,9 @@ OPTIONS
-r::
--remove=::
Remove specified file from the cache.
+-M::
+--missing=::
+ List missing build ids in the cache for the specified file.
-v::
--verbose::
Be more verbose.