blob: 6b630d33c3287899852c3ffa2ac06df0b96614d8 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
|
#!/bin/bash
# perf stat JSON output linter
# SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause)
# Checks various perf stat JSON output commands for the
# correct number of fields.
set -e
skip_test=0
shelldir=$(dirname "$0")
# shellcheck source=lib/setup_python.sh
. "${shelldir}"/lib/setup_python.sh
pythonchecker=$(dirname $0)/lib/perf_json_output_lint.py
stat_output=$(mktemp /tmp/__perf_test.stat_output.json.XXXXX)
cleanup() {
rm -f "${stat_output}"
trap - EXIT TERM INT
}
trap_cleanup() {
cleanup
exit 1
}
trap trap_cleanup EXIT TERM INT
# Return true if perf_event_paranoid is > $1 and not running as root.
function ParanoidAndNotRoot()
{
[ "$(id -u)" != 0 ] && [ "$(cat /proc/sys/kernel/perf_event_paranoid)" -gt $1 ]
}
check_no_args()
{
echo -n "Checking json output: no args "
perf stat -j -o "${stat_output}" true
$PYTHON $pythonchecker --no-args --file "${stat_output}"
echo "[Success]"
}
check_system_wide()
{
echo -n "Checking json output: system wide "
if ParanoidAndNotRoot 0
then
echo "[Skip] paranoia and not root"
return
fi
perf stat -j -a -o "${stat_output}" true
$PYTHON $pythonchecker --system-wide --file "${stat_output}"
echo "[Success]"
}
check_system_wide_no_aggr()
{
echo -n "Checking json output: system wide no aggregation "
if ParanoidAndNotRoot 0
then
echo "[Skip] paranoia and not root"
return
fi
perf stat -j -A -a --no-merge -o "${stat_output}" true
$PYTHON $pythonchecker --system-wide-no-aggr --file "${stat_output}"
echo "[Success]"
}
check_interval()
{
echo -n "Checking json output: interval "
perf stat -j -I 1000 -o "${stat_output}" true
$PYTHON $pythonchecker --interval --file "${stat_output}"
echo "[Success]"
}
check_event()
{
echo -n "Checking json output: event "
perf stat -j -e cpu-clock -o "${stat_output}" true
$PYTHON $pythonchecker --event --file "${stat_output}"
echo "[Success]"
}
check_per_core()
{
echo -n "Checking json output: per core "
if ParanoidAndNotRoot 0
then
echo "[Skip] paranoia and not root"
return
fi
perf stat -j --per-core -a -o "${stat_output}" true
$PYTHON $pythonchecker --per-core --file "${stat_output}"
echo "[Success]"
}
check_per_thread()
{
echo -n "Checking json output: per thread "
if ParanoidAndNotRoot 0
then
echo "[Skip] paranoia and not root"
return
fi
perf stat -j --per-thread -p $$ -o "${stat_output}" true
$PYTHON $pythonchecker --per-thread --file "${stat_output}"
echo "[Success]"
}
check_per_cache_instance()
{
echo -n "Checking json output: per cache_instance "
if ParanoidAndNotRoot 0
then
echo "[Skip] paranoia and not root"
return
fi
perf stat -j --per-cache -a true 2>&1 | $PYTHON $pythonchecker --per-cache
echo "[Success]"
}
check_per_cluster()
{
echo -n "Checking json output: per cluster "
if ParanoidAndNotRoot 0
then
echo "[Skip] paranoia and not root"
return
fi
perf stat -j --per-cluster -a true 2>&1 | $PYTHON $pythonchecker --per-cluster
echo "[Success]"
}
check_per_die()
{
echo -n "Checking json output: per die "
if ParanoidAndNotRoot 0
then
echo "[Skip] paranoia and not root"
return
fi
perf stat -j --per-die -a -o "${stat_output}" true
$PYTHON $pythonchecker --per-die --file "${stat_output}"
echo "[Success]"
}
check_per_node()
{
echo -n "Checking json output: per node "
if ParanoidAndNotRoot 0
then
echo "[Skip] paranoia and not root"
return
fi
perf stat -j --per-node -a -o "${stat_output}" true
$PYTHON $pythonchecker --per-node --file "${stat_output}"
echo "[Success]"
}
check_per_socket()
{
echo -n "Checking json output: per socket "
if ParanoidAndNotRoot 0
then
echo "[Skip] paranoia and not root"
return
fi
perf stat -j --per-socket -a -o "${stat_output}" true
$PYTHON $pythonchecker --per-socket --file "${stat_output}"
echo "[Success]"
}
# The perf stat options for per-socket, per-core, per-die
# and -A ( no_aggr mode ) uses the info fetched from this
# directory: "/sys/devices/system/cpu/cpu*/topology". For
# example, socket value is fetched from "physical_package_id"
# file in topology directory.
# Reference: cpu__get_topology_int in util/cpumap.c
# If the platform doesn't expose topology information, values
# will be set to -1. For example, incase of pSeries platform
# of powerpc, value for "physical_package_id" is restricted
# and set to -1. Check here validates the socket-id read from
# topology file before proceeding further
FILE_LOC="/sys/devices/system/cpu/cpu*/topology/"
FILE_NAME="physical_package_id"
check_for_topology()
{
if ! ParanoidAndNotRoot 0
then
socket_file=`ls $FILE_LOC/$FILE_NAME | head -n 1`
[ -z $socket_file ] && return 0
socket_id=`cat $socket_file`
[ $socket_id == -1 ] && skip_test=1
return 0
fi
}
check_for_topology
check_no_args
check_system_wide
check_interval
check_event
check_per_thread
check_per_node
if [ $skip_test -ne 1 ]
then
check_system_wide_no_aggr
check_per_core
check_per_cache_instance
check_per_cluster
check_per_die
check_per_socket
else
echo "[Skip] Skipping tests for system_wide_no_aggr, per_core, per_die and per_socket since socket id exposed via topology is invalid"
fi
cleanup
exit 0
|
