perf diff: Introduce tool to show performance difference
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1 perf-diff(1)
2 ==============
4 NAME
5 ----
6 perf-diff - Read perf.data (created by perf record) and display the profile
8 SYNOPSIS
9 --------
10 [verse]
11 'perf diff' [oldfile] [newfile]
13 DESCRIPTION
14 -----------
15 This command displays the performance difference among two perf.data files
16 captured via perf record.
18 If no parameters are passed it will assume perf.data.old and perf.data.
20 OPTIONS
21 -------
22 -p::
23 --percentage::
24         Show percentages instead of raw counters
25 -v::
26 --verbose::
27         Be verbose, for instance, show the raw counters in addition to the
28         diff.
29 SEE ALSO
30 --------
31 linkperf:perf-record[1]