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a06d143e7c
Adding -b option to perf diff command to display only entries with match in the baseline. Signed-off-by: Jiri Olsa <jolsa@redhat.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1349448287-18919-2-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
82 lines
1.6 KiB
Plaintext
82 lines
1.6 KiB
Plaintext
perf-diff(1)
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============
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NAME
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----
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perf-diff - Read two perf.data files and display the differential profile
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SYNOPSIS
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--------
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[verse]
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'perf diff' [oldfile] [newfile]
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DESCRIPTION
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-----------
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This command displays the performance difference amongst two perf.data files
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captured via perf record.
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If no parameters are passed it will assume perf.data.old and perf.data.
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The differential profile is displayed only for events matching both
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specified perf.data files.
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OPTIONS
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-------
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-M::
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--displacement::
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Show position displacement relative to baseline.
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-D::
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--dump-raw-trace::
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Dump raw trace in ASCII.
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-m::
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--modules::
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Load module symbols. WARNING: use only with -k and LIVE kernel
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-d::
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--dsos=::
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Only consider symbols in these dsos. CSV that understands
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file://filename entries.
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-C::
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--comms=::
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Only consider symbols in these comms. CSV that understands
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file://filename entries.
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-S::
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--symbols=::
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Only consider these symbols. CSV that understands
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file://filename entries.
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-s::
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--sort=::
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Sort by key(s): pid, comm, dso, symbol.
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-t::
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--field-separator=::
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Use a special separator character and don't pad with spaces, replacing
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all occurrences of this separator in symbol names (and other output)
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with a '.' character, that thus it's the only non valid separator.
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-v::
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--verbose::
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Be verbose, for instance, show the raw counts in addition to the
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diff.
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-f::
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--force::
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Don't complain, do it.
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--symfs=<directory>::
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Look for files with symbols relative to this directory.
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-b::
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--baseline-only::
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Show only items with match in baseline.
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SEE ALSO
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--------
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linkperf:perf-record[1]
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