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 | egrep -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 egrep -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() { <<
32 echo "stat record and script test" <<
33 if ! perf stat record -o - true | perf scrip <<
34 grep -E -q "CPU[[:space:]]+THREAD[[:space: <<
35 then <<
36 echo "stat record and script test [Failed] <<
37 err=1 <<
38 return <<
39 fi <<
40 echo "stat record and script test [Success]" <<
41 } <<
42 <<
43 test_stat_repeat_weak_groups() { 31 test_stat_repeat_weak_groups() {
44 echo "stat repeat weak groups test" 32 echo "stat repeat weak groups test"
45 if ! perf stat -e '{cycles,cycles,cycles,cyc 33 if ! perf stat -e '{cycles,cycles,cycles,cycles,cycles,cycles,cycles,cycles,cycles,cycles}' \
46 true 2>&1 | grep -q 'seconds time elapsed 34 true 2>&1 | grep -q 'seconds time elapsed'
47 then 35 then
48 echo "stat repeat weak groups test [Skippe 36 echo "stat repeat weak groups test [Skipped event parsing failed]"
49 return 37 return
50 fi 38 fi
51 if ! perf stat -r2 -e '{cycles,cycles,cycles 39 if ! perf stat -r2 -e '{cycles,cycles,cycles,cycles,cycles,cycles,cycles,cycles,cycles,cycles}:W' \
52 true > /dev/null 2>&1 40 true > /dev/null 2>&1
53 then 41 then
54 echo "stat repeat weak groups test [Failed 42 echo "stat repeat weak groups test [Failed]"
55 err=1 43 err=1
56 return 44 return
57 fi 45 fi
58 echo "stat repeat weak groups test [Success] 46 echo "stat repeat weak groups test [Success]"
59 } 47 }
60 48
61 test_topdown_groups() { 49 test_topdown_groups() {
62 # Topdown events must be grouped with the sl 50 # Topdown events must be grouped with the slots event first. Test that
63 # parse-events reorders this. 51 # parse-events reorders this.
64 echo "Topdown event group test" 52 echo "Topdown event group test"
65 if ! perf stat -e '{slots,topdown-retiring}' 53 if ! perf stat -e '{slots,topdown-retiring}' true > /dev/null 2>&1
66 then 54 then
67 echo "Topdown event group test [Skipped ev 55 echo "Topdown event group test [Skipped event parsing failed]"
68 return 56 return
69 fi 57 fi
70 if perf stat -e '{slots,topdown-retiring}' t !! 58 if perf stat -e '{slots,topdown-retiring}' true 2>&1 | egrep -q "<not supported>"
71 then 59 then
72 echo "Topdown event group test [Failed eve 60 echo "Topdown event group test [Failed events not supported]"
73 err=1 61 err=1
74 return 62 return
75 fi 63 fi
76 if perf stat -e '{topdown-retiring,slots}' t !! 64 if perf stat -e '{topdown-retiring,slots}' true 2>&1 | egrep -q "<not supported>"
77 then 65 then
78 echo "Topdown event group test [Failed slo 66 echo "Topdown event group test [Failed slots not reordered first]"
79 err=1 67 err=1
80 return 68 return
81 fi 69 fi
82 echo "Topdown event group test [Success]" 70 echo "Topdown event group test [Success]"
83 } 71 }
84 72
85 test_topdown_weak_groups() { 73 test_topdown_weak_groups() {
86 # Weak groups break if the perf_event_open o 74 # Weak groups break if the perf_event_open of multiple grouped events
87 # fails. Breaking a topdown group causes the 75 # fails. Breaking a topdown group causes the events to fail. Test a very large
88 # grouping to see that the topdown events ar 76 # grouping to see that the topdown events aren't broken out.
89 echo "Topdown weak groups test" 77 echo "Topdown weak groups test"
90 ok_grouping="{slots,topdown-bad-spec,topdown 78 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 "$ok_grouping" 79 if ! perf stat --no-merge -e "$ok_grouping" true > /dev/null 2>&1
92 then 80 then
93 echo "Topdown weak groups test [Skipped ev 81 echo "Topdown weak groups test [Skipped event parsing failed]"
94 return 82 return
95 fi 83 fi
96 group_needs_break="{slots,topdown-bad-spec,t 84 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 "$group_needs_bre !! 85 if perf stat --no-merge -e "$group_needs_break" true 2>&1 | egrep -q "<not supported>"
98 then 86 then
99 echo "Topdown weak groups test [Failed eve 87 echo "Topdown weak groups test [Failed events not supported]"
100 err=1 88 err=1
101 return 89 return
102 fi 90 fi
103 echo "Topdown weak groups test [Success]" 91 echo "Topdown weak groups test [Success]"
104 } 92 }
105 93
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 94 test_default_stat
150 test_stat_record_report 95 test_stat_record_report
151 test_stat_record_script <<
152 test_stat_repeat_weak_groups 96 test_stat_repeat_weak_groups
153 test_topdown_groups 97 test_topdown_groups
154 test_topdown_weak_groups 98 test_topdown_weak_groups
155 test_cputype <<
156 exit $err 99 exit $err
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