Provided by: linux-tools-common_3.2.0-23.36_all bug

NAME

       perf-diff - Read two perf.data files and display the differential profile

SYNOPSIS

       perf diff [oldfile] [newfile]

DESCRIPTION

       This command displays the performance difference amongst two perf.data files captured via
       perf record.

       If no parameters are passed it will assume perf.data.old and perf.data.

OPTIONS

       -M, --displacement
           Show position displacement relative to baseline.

       -D, --dump-raw-trace
           Dump raw trace in ASCII.

       -m, --modules
           Load module symbols. WARNING: use only with -k and LIVE kernel

       -d, --dsos=
           Only consider symbols in these dsos. CSV that understands file://filename entries.

       -C, --comms=
           Only consider symbols in these comms. CSV that understands file://filename entries.

       -S, --symbols=
           Only consider these symbols. CSV that understands file://filename entries.

       -s, --sort=
           Sort by key(s): pid, comm, dso, symbol.

       -t, --field-separator=
           Use a special separator character and don’t pad with spaces, replacing all occurrences
           of this separator in symbol names (and other output) with a .  character, that thus
           it’s the only non valid separator.

       -v, --verbose
           Be verbose, for instance, show the raw counts in addition to the diff.

       -f, --force
           Don’t complain, do it.

       --symfs=<directory>
           Look for files with symbols relative to this directory.

SEE ALSO

       perf-record(1)