Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
1#!/bin/sh
2# perf script tests
3# SPDX-License-Identifier: GPL-2.0
4
5set -e
6
7temp_dir=$(mktemp -d /tmp/perf-test-script.XXXXXXXXXX)
8
9perfdatafile="${temp_dir}/perf.data"
10db_test="${temp_dir}/db_test.py"
11
12err=0
13
14cleanup()
15{
16 trap - EXIT TERM INT
17 sane=$(echo "${temp_dir}" | cut -b 1-21)
18 if [ "${sane}" = "/tmp/perf-test-script" ] ; then
19 echo "--- Cleaning up ---"
20 rm -rf "${temp_dir:?}/"*
21 rmdir "${temp_dir}"
22 fi
23}
24
25trap_cleanup()
26{
27 cleanup
28 exit 1
29}
30
31trap trap_cleanup EXIT TERM INT
32
33
34test_db()
35{
36 echo "DB test"
37
38 # Check if python script is supported
39 if perf version --build-options | grep python | grep -q OFF ; then
40 echo "SKIP: python scripting is not supported"
41 err=2
42 return
43 fi
44
45 cat << "_end_of_file_" > "${db_test}"
46perf_db_export_mode = True
47perf_db_export_calls = False
48perf_db_export_callchains = True
49
50def sample_table(*args):
51 print(f'sample_table({args})')
52
53def call_path_table(*args):
54 print(f'call_path_table({args}')
55_end_of_file_
56 case $(uname -m)
57 in s390x)
58 cmd_flags="--call-graph dwarf -e cpu-clock";;
59 *)
60 cmd_flags="-g";;
61 esac
62
63 perf record $cmd_flags -o "${perfdatafile}" true
64 perf script -i "${perfdatafile}" -s "${db_test}"
65 echo "DB test [Success]"
66}
67
68test_parallel_perf()
69{
70 echo "parallel-perf test"
71 if ! python3 --version >/dev/null 2>&1 ; then
72 echo "SKIP: no python3"
73 err=2
74 return
75 fi
76 pp=$(dirname "$0")/../../scripts/python/parallel-perf.py
77 if [ ! -f "${pp}" ] ; then
78 echo "SKIP: parallel-perf.py script not found "
79 err=2
80 return
81 fi
82 perf_data="${temp_dir}/pp-perf.data"
83 output1_dir="${temp_dir}/output1"
84 output2_dir="${temp_dir}/output2"
85 perf record -o "${perf_data}" --sample-cpu uname
86 python3 "${pp}" -o "${output1_dir}" --jobs 4 --verbose -- perf script -i "${perf_data}"
87 python3 "${pp}" -o "${output2_dir}" --jobs 4 --verbose --per-cpu -- perf script -i "${perf_data}"
88 echo "parallel-perf test [Success]"
89}
90
91test_db
92test_parallel_perf
93
94cleanup
95
96exit $err