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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>
36 lines
727 B
Text
36 lines
727 B
Text
perf-buildid-cache(1)
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=====================
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NAME
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----
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perf-buildid-cache - Manage build-id cache.
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SYNOPSIS
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--------
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[verse]
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'perf buildid-cache <options>'
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DESCRIPTION
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-----------
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This command manages the build-id cache. It can add and remove files to/from
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the cache. In the future it should as well purge older entries, set upper
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limits for the space used by the cache, etc.
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OPTIONS
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-------
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-a::
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--add=::
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Add specified file to the cache.
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-r::
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--remove=::
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Remove specified file from the cache.
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-M::
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--missing=::
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List missing build ids in the cache for the specified file.
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-v::
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--verbose::
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Be more verbose.
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SEE ALSO
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--------
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linkperf:perf-record[1], linkperf:perf-report[1], linkperf:perf-buildid-list[1]
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