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
-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 occurances 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.
SEE ALSO
perf-record(1)