Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
1#!/bin/bash
2# perf stat CSV output linter
3# SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause)
4# Tests various perf stat CSV output commands for the
5# correct number of fields and the CSV separator set to ','.
6
7set -e
8
9. "$(dirname $0)"/lib/stat_output.sh
10
11csv_sep=@
12
13stat_output=$(mktemp /tmp/__perf_test.stat_output.csv.XXXXX)
14
15cleanup() {
16 rm -f "${stat_output}"
17
18 trap - EXIT TERM INT
19}
20
21trap_cleanup() {
22 cleanup
23 exit 1
24}
25trap trap_cleanup EXIT TERM INT
26
27function commachecker()
28{
29 local -i cnt=0
30 local exp=0
31
32 case "$1"
33 in "--no-args") exp=6
34 ;; "--system-wide") exp=6
35 ;; "--event") exp=6
36 ;; "--interval") exp=7
37 ;; "--per-thread") exp=7
38 ;; "--system-wide-no-aggr") exp=7
39 [ "$(uname -m)" = "s390x" ] && exp='^[6-7]$'
40 ;; "--per-core") exp=8
41 ;; "--per-socket") exp=8
42 ;; "--per-node") exp=8
43 ;; "--per-die") exp=8
44 ;; "--per-cache") exp=8
45 esac
46
47 while read line
48 do
49 # Ignore initial "started on" comment.
50 x=${line:0:1}
51 [ "$x" = "#" ] && continue
52 # Ignore initial blank line.
53 [ "$line" = "" ] && continue
54
55 # Count the number of commas
56 x=$(echo $line | tr -d -c $csv_sep)
57 cnt="${#x}"
58 # echo $line $cnt
59 [[ ! "$cnt" =~ $exp ]] && {
60 echo "wrong number of fields. expected $exp in $line" 1>&2
61 exit 1;
62 }
63 done < "${stat_output}"
64 return 0
65}
66
67perf_cmd="-x$csv_sep -o ${stat_output}"
68
69skip_test=$(check_for_topology)
70check_no_args "CSV" "$perf_cmd"
71check_system_wide "CSV" "$perf_cmd"
72check_interval "CSV" "$perf_cmd"
73check_event "CSV" "$perf_cmd"
74check_per_thread "CSV" "$perf_cmd"
75check_per_node "CSV" "$perf_cmd"
76if [ $skip_test -ne 1 ]
77then
78 check_system_wide_no_aggr "CSV" "$perf_cmd"
79 check_per_core "CSV" "$perf_cmd"
80 check_per_cache_instance "CSV" "$perf_cmd"
81 check_per_die "CSV" "$perf_cmd"
82 check_per_socket "CSV" "$perf_cmd"
83else
84 echo "[Skip] Skipping tests for system_wide_no_aggr, per_core, per_die and per_socket since socket id exposed via topology is invalid"
85fi
86cleanup
87exit 0