summaryrefslogtreecommitdiffstats
path: root/tools/perf/tests/shell/stat.sh
blob: 3f1e67795490a068e6b55e431a8dd6fa326c6e67 (plain)
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
#!/bin/sh
# perf stat tests
# SPDX-License-Identifier: GPL-2.0

set -e

err=0
test_default_stat() {
  echo "Basic stat command test"
  if ! perf stat true 2>&1 | grep -E -q "Performance counter stats for 'true':"
  then
    echo "Basic stat command test [Failed]"
    err=1
    return
  fi
  echo "Basic stat command test [Success]"
}

test_stat_record_report() {
  echo "stat record and report test"
  if ! perf stat record -o - true | perf stat report -i - 2>&1 | \
    grep -E -q "Performance counter stats for 'pipe':"
  then
    echo "stat record and report test [Failed]"
    err=1
    return
  fi
  echo "stat record and report test [Success]"
}

test_stat_record_script() {
  echo "stat record and script test"
  if ! perf stat record -o - true | perf script -i - 2>&1 | \
    grep -E -q "CPU[[:space:]]+THREAD[[:space:]]+VAL[[:space:]]+ENA[[:space:]]+RUN[[:space:]]+TIME[[:space:]]+EVENT"
  then
    echo "stat record and script test [Failed]"
    err=1
    return
  fi
  echo "stat record and script test [Success]"
}

test_stat_repeat_weak_groups() {
  echo "stat repeat weak groups test"
  if ! perf stat -e '{cycles,cycles,cycles,cycles,cycles,cycles,cycles,cycles,cycles,cycles}' \
     true 2>&1 | grep -q 'seconds time elapsed'
  then
    echo "stat repeat weak groups test [Skipped event parsing failed]"
    return
  fi
  if ! perf stat -r2 -e '{cycles,cycles,cycles,cycles,cycles,cycles,cycles,cycles,cycles,cycles}:W' \
    true > /dev/null 2>&1
  then
    echo "stat repeat weak groups test [Failed]"
    err=1
    return
  fi
  echo "stat repeat weak groups test [Success]"
}

test_topdown_groups() {
  # Topdown events must be grouped with the slots event first. Test that
  # parse-events reorders this.
  echo "Topdown event group test"
  if ! perf stat -e '{slots,topdown-retiring}' true > /dev/null 2>&1
  then
    echo "Topdown event group test [Skipped event parsing failed]"
    return
  fi
  if perf stat -e '{slots,topdown-retiring}' true 2>&1 | grep -E -q "<not supported>"
  then
    echo "Topdown event group test [Failed events not supported]"
    err=1
    return
  fi
  if perf stat -e '{topdown-retiring,slots}' true 2>&1 | grep -E -q "<not supported>"
  then
    echo "Topdown event group test [Failed slots not reordered first]"
    err=1
    return
  fi
  echo "Topdown event group test [Success]"
}

test_topdown_weak_groups() {
  # Weak groups break if the perf_event_open of multiple grouped events
  # fails. Breaking a topdown group causes the events to fail. Test a very large
  # grouping to see that the topdown events aren't broken out.
  echo "Topdown weak groups test"
  ok_grouping="{slots,topdown-bad-spec,topdown-be-bound,topdown-fe-bound,topdown-retiring},branch-instructions,branch-misses,bus-cycles,cache-misses,cache-references,cpu-cycles,instructions,mem-loads,mem-stores,ref-cycles,cache-misses,cache-references"
  if ! perf stat --no-merge -e "$ok_grouping" true > /dev/null 2>&1
  then
    echo "Topdown weak groups test [Skipped event parsing failed]"
    return
  fi
  group_needs_break="{slots,topdown-bad-spec,topdown-be-bound,topdown-fe-bound,topdown-retiring,branch-instructions,branch-misses,bus-cycles,cache-misses,cache-references,cpu-cycles,instructions,mem-loads,mem-stores,ref-cycles,cache-misses,cache-references}:W"
  if perf stat --no-merge -e "$group_needs_break" true 2>&1 | grep -E -q "<not supported>"
  then
    echo "Topdown weak groups test [Failed events not supported]"
    err=1
    return
  fi
  echo "Topdown weak groups test [Success]"
}

test_cputype() {
  # Test --cputype argument.
  echo "cputype test"

  # Bogus PMU should fail.
  if perf stat --cputype="123" -e instructions true > /dev/null 2>&1
  then
    echo "cputype test [Bogus PMU didn't fail]"
    err=1
    return
  fi

  # Find a known PMU for cputype.
  pmu=""
  for i in cpu cpu_atom armv8_pmuv3_0
  do
    if test -d "/sys/devices/$i"
    then
      pmu="$i"
      break
    fi
    if perf stat -e "$i/instructions/" true > /dev/null 2>&1
    then
      pmu="$i"
      break
    fi
  done
  if test "x$pmu" = "x"
  then
    echo "cputype test [Skipped known PMU not found]"
    return
  fi

  # Test running with cputype produces output.
  if ! perf stat --cputype="$pmu" -e instructions true 2>&1 | grep -E -q "instructions"
  then
    echo "cputype test [Failed count missed with given filter]"
    err=1
    return
  fi
  echo "cputype test [Success]"
}

test_default_stat
test_stat_record_report
test_stat_record_script
test_stat_repeat_weak_groups
test_topdown_groups
test_topdown_weak_groups
test_cputype
exit $err