Linux kernel mirror (for testing)
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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
9pythonchecker=$(dirname $0)/lib/perf_csv_output_lint.py
10if [ "x$PYTHON" == "x" ]
11then
12 if which python3 > /dev/null
13 then
14 PYTHON=python3
15 elif which python > /dev/null
16 then
17 PYTHON=python
18 else
19 echo Skipping test, python not detected please set environment variable PYTHON.
20 exit 2
21 fi
22fi
23
24# Return true if perf_event_paranoid is > $1 and not running as root.
25function ParanoidAndNotRoot()
26{
27 [ $(id -u) != 0 ] && [ $(cat /proc/sys/kernel/perf_event_paranoid) -gt $1 ]
28}
29
30check_no_args()
31{
32 echo -n "Checking CSV output: no args "
33 perf stat -x, true 2>&1 | $PYTHON $pythonchecker --no-args
34 echo "[Success]"
35}
36
37check_system_wide()
38{
39 echo -n "Checking CSV output: system wide "
40 if ParanoidAndNotRoot 0
41 then
42 echo "[Skip] paranoid and not root"
43 return
44 fi
45 perf stat -x, -a true 2>&1 | $PYTHON $pythonchecker --system-wide
46 echo "[Success]"
47}
48
49check_system_wide_no_aggr()
50{
51 echo -n "Checking CSV output: system wide "
52 if ParanoidAndNotRoot 0
53 then
54 echo "[Skip] paranoid and not root"
55 return
56 fi
57 echo -n "Checking CSV output: system wide no aggregation "
58 perf stat -x, -A -a --no-merge true 2>&1 | $PYTHON $pythonchecker --system-wide-no-aggr
59 echo "[Success]"
60}
61
62check_interval()
63{
64 echo -n "Checking CSV output: interval "
65 perf stat -x, -I 1000 true 2>&1 | $PYTHON $pythonchecker --interval
66 echo "[Success]"
67}
68
69
70check_event()
71{
72 echo -n "Checking CSV output: event "
73 perf stat -x, -e cpu-clock true 2>&1 | $PYTHON $pythonchecker --event
74 echo "[Success]"
75}
76
77check_per_core()
78{
79 echo -n "Checking CSV output: per core "
80 if ParanoidAndNotRoot 0
81 then
82 echo "[Skip] paranoid and not root"
83 return
84 fi
85 perf stat -x, --per-core -a true 2>&1 | $PYTHON $pythonchecker --per-core
86 echo "[Success]"
87}
88
89check_per_thread()
90{
91 echo -n "Checking CSV output: per thread "
92 if ParanoidAndNotRoot 0
93 then
94 echo "[Skip] paranoid and not root"
95 return
96 fi
97 perf stat -x, --per-thread -a true 2>&1 | $PYTHON $pythonchecker --per-thread
98 echo "[Success]"
99}
100
101check_per_die()
102{
103 echo -n "Checking CSV output: per die "
104 if ParanoidAndNotRoot 0
105 then
106 echo "[Skip] paranoid and not root"
107 return
108 fi
109 perf stat -x, --per-die -a true 2>&1 | $PYTHON $pythonchecker --per-die
110 echo "[Success]"
111}
112
113check_per_node()
114{
115 echo -n "Checking CSV output: per node "
116 if ParanoidAndNotRoot 0
117 then
118 echo "[Skip] paranoid and not root"
119 return
120 fi
121 perf stat -x, --per-node -a true 2>&1 | $PYTHON $pythonchecker --per-node
122 echo "[Success]"
123}
124
125check_per_socket()
126{
127 echo -n "Checking CSV output: per socket "
128 if ParanoidAndNotRoot 0
129 then
130 echo "[Skip] paranoid and not root"
131 return
132 fi
133 perf stat -x, --per-socket -a true 2>&1 | $PYTHON $pythonchecker --per-socket
134 echo "[Success]"
135}
136
137check_no_args
138check_system_wide
139check_system_wide_no_aggr
140check_interval
141check_event
142check_per_core
143check_per_thread
144check_per_die
145check_per_node
146check_per_socket
147exit 0