tjh.dev
Linux kernel mirror (for testing)
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linux
1#!/bin/bash
2# perf all metrics test
3# SPDX-License-Identifier: GPL-2.0
4
5ParanoidAndNotRoot()
6{
7 [ "$(id -u)" != 0 ] && [ "$(cat /proc/sys/kernel/perf_event_paranoid)" -gt $1 ]
8}
9
10test_prog="sleep 0.01"
11system_wide_flag="-a"
12if ParanoidAndNotRoot 0
13then
14 system_wide_flag=""
15 test_prog="perf test -w noploop"
16fi
17
18err=0
19for m in $(perf list --raw-dump metrics); do
20 echo "Testing $m"
21 result=$(perf stat -M "$m" $system_wide_flag -- $test_prog 2>&1)
22 result_err=$?
23 if [[ $result_err -eq 0 && "$result" =~ ${m:0:50} ]]
24 then
25 # No error result and metric shown.
26 continue
27 fi
28 if [[ "$result" =~ "Cannot resolve IDs for" || "$result" =~ "No supported events found" ]]
29 then
30 if [[ $(perf list --raw-dump $m) == "Default"* ]]
31 then
32 echo "[Ignored $m] failed but as a Default metric this can be expected"
33 echo $result
34 continue
35 fi
36 echo "[Failed $m] Metric contains missing events"
37 echo $result
38 err=1 # Fail
39 continue
40 elif [[ "$result" =~ \
41 "Access to performance monitoring and observability operations is limited" ]]
42 then
43 echo "[Skipped $m] Permission failure"
44 echo $result
45 if [[ $err -eq 0 ]]
46 then
47 err=2 # Skip
48 fi
49 continue
50 elif [[ "$result" =~ "in per-thread mode, enable system wide" ]]
51 then
52 echo "[Skipped $m] Permissions - need system wide mode"
53 echo $result
54 if [[ $err -eq 0 ]]
55 then
56 err=2 # Skip
57 fi
58 continue
59 elif [[ "$result" =~ "<not supported>" ]]
60 then
61 if [[ $(perf list --raw-dump $m) == "Default"* ]]
62 then
63 echo "[Ignored $m] failed but as a Default metric this can be expected"
64 echo $result
65 continue
66 fi
67 echo "[Skipped $m] Not supported events"
68 echo $result
69 if [[ $err -eq 0 ]]
70 then
71 err=2 # Skip
72 fi
73 continue
74 elif [[ "$result" =~ "<not counted>" ]]
75 then
76 echo "[Skipped $m] Not counted events"
77 echo $result
78 if [[ $err -eq 0 ]]
79 then
80 err=2 # Skip
81 fi
82 continue
83 elif [[ "$result" =~ "FP_ARITH" || "$result" =~ "AMX" ]]
84 then
85 echo "[Skipped $m] FP issues"
86 echo $result
87 if [[ $err -eq 0 ]]
88 then
89 err=2 # Skip
90 fi
91 continue
92 elif [[ "$result" =~ "PMM" ]]
93 then
94 echo "[Skipped $m] Optane memory issues"
95 echo $result
96 if [[ $err -eq 0 ]]
97 then
98 err=2 # Skip
99 fi
100 continue
101 fi
102
103 # Failed, possibly the workload was too small so retry with something longer.
104 result=$(perf stat -M "$m" $system_wide_flag -- perf bench internals synthesize 2>&1)
105 result_err=$?
106 if [[ $result_err -eq 0 && "$result" =~ ${m:0:50} ]]
107 then
108 # No error result and metric shown.
109 continue
110 fi
111 echo "[Failed $m] has non-zero error '$result_err' or not printed in:"
112 echo "$result"
113 err=1
114done
115
116exit "$err"