1 #!/bin/sh 1 #!/bin/sh
2 # perf stat tests 2 # perf stat tests
3 # SPDX-License-Identifier: GPL-2.0 3 # SPDX-License-Identifier: GPL-2.0
4 4
5 set -e 5 set -e
6 6
7 err=0 7 err=0
8 test_default_stat() { 8 test_default_stat() {
9 echo "Basic stat command test" 9 echo "Basic stat command test"
10 if ! perf stat true 2>&1 | grep -E -q "Perfo 10 if ! perf stat true 2>&1 | grep -E -q "Performance counter stats for 'true':"
11 then 11 then
12 echo "Basic stat command test [Failed]" 12 echo "Basic stat command test [Failed]"
13 err=1 13 err=1
14 return 14 return
15 fi 15 fi
16 echo "Basic stat command test [Success]" 16 echo "Basic stat command test [Success]"
17 } 17 }
18 18
19 test_stat_record_report() { 19 test_stat_record_report() {
20 echo "stat record and report test" 20 echo "stat record and report test"
21 if ! perf stat record -o - true | perf stat 21 if ! perf stat record -o - true | perf stat report -i - 2>&1 | \
22 grep -E -q "Performance counter stats for 22 grep -E -q "Performance counter stats for 'pipe':"
23 then 23 then
24 echo "stat record and report test [Failed] 24 echo "stat record and report test [Failed]"
25 err=1 25 err=1
26 return 26 return
27 fi 27 fi
28 echo "stat record and report test [Success]" 28 echo "stat record and report test [Success]"
29 } 29 }
30 30
31 test_stat_record_script() { 31 test_stat_record_script() {
32 echo "stat record and script test" 32 echo "stat record and script test"
33 if ! perf stat record -o - true | perf scrip 33 if ! perf stat record -o - true | perf script -i - 2>&1 | \
34 grep -E -q "CPU[[:space:]]+THREAD[[:space: 34 grep -E -q "CPU[[:space:]]+THREAD[[:space:]]+VAL[[:space:]]+ENA[[:space:]]+RUN[[:space:]]+TIME[[:space:]]+EVENT"
35 then 35 then
36 echo "stat record and script test [Failed] 36 echo "stat record and script test [Failed]"
37 err=1 37 err=1
38 return 38 return
39 fi 39 fi
40 echo "stat record and script test [Success]" 40 echo "stat record and script test [Success]"
41 } 41 }
42 42
43 test_stat_repeat_weak_groups() { 43 test_stat_repeat_weak_groups() {
44 echo "stat repeat weak groups test" 44 echo "stat repeat weak groups test"
45 if ! perf stat -e '{cycles,cycles,cycles,cyc 45 if ! perf stat -e '{cycles,cycles,cycles,cycles,cycles,cycles,cycles,cycles,cycles,cycles}' \
46 true 2>&1 | grep -q 'seconds time elapsed 46 true 2>&1 | grep -q 'seconds time elapsed'
47 then 47 then
48 echo "stat repeat weak groups test [Skippe 48 echo "stat repeat weak groups test [Skipped event parsing failed]"
49 return 49 return
50 fi 50 fi
51 if ! perf stat -r2 -e '{cycles,cycles,cycles 51 if ! perf stat -r2 -e '{cycles,cycles,cycles,cycles,cycles,cycles,cycles,cycles,cycles,cycles}:W' \
52 true > /dev/null 2>&1 52 true > /dev/null 2>&1
53 then 53 then
54 echo "stat repeat weak groups test [Failed 54 echo "stat repeat weak groups test [Failed]"
55 err=1 55 err=1
56 return 56 return
57 fi 57 fi
58 echo "stat repeat weak groups test [Success] 58 echo "stat repeat weak groups test [Success]"
59 } 59 }
60 60
61 test_topdown_groups() { 61 test_topdown_groups() {
62 # Topdown events must be grouped with the sl 62 # Topdown events must be grouped with the slots event first. Test that
63 # parse-events reorders this. 63 # parse-events reorders this.
64 echo "Topdown event group test" 64 echo "Topdown event group test"
65 if ! perf stat -e '{slots,topdown-retiring}' 65 if ! perf stat -e '{slots,topdown-retiring}' true > /dev/null 2>&1
66 then 66 then
67 echo "Topdown event group test [Skipped ev 67 echo "Topdown event group test [Skipped event parsing failed]"
68 return 68 return
69 fi 69 fi
70 if perf stat -e '{slots,topdown-retiring}' t 70 if perf stat -e '{slots,topdown-retiring}' true 2>&1 | grep -E -q "<not supported>"
71 then 71 then
72 echo "Topdown event group test [Failed eve 72 echo "Topdown event group test [Failed events not supported]"
73 err=1 73 err=1
74 return 74 return
75 fi 75 fi
76 if perf stat -e '{topdown-retiring,slots}' t 76 if perf stat -e '{topdown-retiring,slots}' true 2>&1 | grep -E -q "<not supported>"
77 then 77 then
78 echo "Topdown event group test [Failed slo 78 echo "Topdown event group test [Failed slots not reordered first]"
79 err=1 79 err=1
80 return 80 return
81 fi 81 fi
82 echo "Topdown event group test [Success]" 82 echo "Topdown event group test [Success]"
83 } 83 }
84 84
85 test_topdown_weak_groups() { 85 test_topdown_weak_groups() {
86 # Weak groups break if the perf_event_open o 86 # Weak groups break if the perf_event_open of multiple grouped events
87 # fails. Breaking a topdown group causes the 87 # fails. Breaking a topdown group causes the events to fail. Test a very large
88 # grouping to see that the topdown events ar 88 # grouping to see that the topdown events aren't broken out.
89 echo "Topdown weak groups test" 89 echo "Topdown weak groups test"
90 ok_grouping="{slots,topdown-bad-spec,topdown 90 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"
91 if ! perf stat --no-merge -e "$ok_grouping" 91 if ! perf stat --no-merge -e "$ok_grouping" true > /dev/null 2>&1
92 then 92 then
93 echo "Topdown weak groups test [Skipped ev 93 echo "Topdown weak groups test [Skipped event parsing failed]"
94 return 94 return
95 fi 95 fi
96 group_needs_break="{slots,topdown-bad-spec,t 96 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"
97 if perf stat --no-merge -e "$group_needs_bre 97 if perf stat --no-merge -e "$group_needs_break" true 2>&1 | grep -E -q "<not supported>"
98 then 98 then
99 echo "Topdown weak groups test [Failed eve 99 echo "Topdown weak groups test [Failed events not supported]"
100 err=1 100 err=1
101 return 101 return
102 fi 102 fi
103 echo "Topdown weak groups test [Success]" 103 echo "Topdown weak groups test [Success]"
104 } 104 }
105 105
106 test_cputype() { <<
107 # Test --cputype argument. <<
108 echo "cputype test" <<
109 <<
110 # Bogus PMU should fail. <<
111 if perf stat --cputype="123" -e instructions <<
112 then <<
113 echo "cputype test [Bogus PMU didn't fail] <<
114 err=1 <<
115 return <<
116 fi <<
117 <<
118 # Find a known PMU for cputype. <<
119 pmu="" <<
120 for i in cpu cpu_atom armv8_pmuv3_0 <<
121 do <<
122 if test -d "/sys/devices/$i" <<
123 then <<
124 pmu="$i" <<
125 break <<
126 fi <<
127 if perf stat -e "$i/instructions/" true > <<
128 then <<
129 pmu="$i" <<
130 break <<
131 fi <<
132 done <<
133 if test "x$pmu" = "x" <<
134 then <<
135 echo "cputype test [Skipped known PMU not <<
136 return <<
137 fi <<
138 <<
139 # Test running with cputype produces output. <<
140 if ! perf stat --cputype="$pmu" -e instructi <<
141 then <<
142 echo "cputype test [Failed count missed wi <<
143 err=1 <<
144 return <<
145 fi <<
146 echo "cputype test [Success]" <<
147 } <<
148 <<
149 test_default_stat 106 test_default_stat
150 test_stat_record_report 107 test_stat_record_report
151 test_stat_record_script 108 test_stat_record_script
152 test_stat_repeat_weak_groups 109 test_stat_repeat_weak_groups
153 test_topdown_groups 110 test_topdown_groups
154 test_topdown_weak_groups 111 test_topdown_weak_groups
155 test_cputype <<
156 exit $err 112 exit $err
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