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 record tests
3# SPDX-License-Identifier: GPL-2.0
4
5set -e
6
7err=0
8perfdata=$(mktemp /tmp/__perf_test.perf.data.XXXXX)
9
10cleanup() {
11 rm -f ${perfdata}
12 rm -f ${perfdata}.old
13 trap - exit term int
14}
15
16trap_cleanup() {
17 cleanup
18 exit 1
19}
20trap trap_cleanup exit term int
21
22test_per_thread() {
23 echo "Basic --per-thread mode test"
24 if ! perf record -e instructions:u -o ${perfdata} --quiet true 2> /dev/null
25 then
26 echo "Per-thread record [Skipped instructions:u not supported]"
27 if [ $err -ne 1 ]
28 then
29 err=2
30 fi
31 return
32 fi
33 if ! perf record -e instructions:u --per-thread -o ${perfdata} true 2> /dev/null
34 then
35 echo "Per-thread record of instructions:u [Failed]"
36 err=1
37 return
38 fi
39 if ! perf report -i ${perfdata} -q | egrep -q true
40 then
41 echo "Per-thread record [Failed missing output]"
42 err=1
43 return
44 fi
45 echo "Basic --per-thread mode test [Success]"
46}
47
48test_register_capture() {
49 echo "Register capture test"
50 if ! perf list | egrep -q 'br_inst_retired.near_call'
51 then
52 echo "Register capture test [Skipped missing instruction]"
53 if [ $err -ne 1 ]
54 then
55 err=2
56 fi
57 return
58 fi
59 if ! perf record --intr-regs=\? 2>&1 | egrep -q 'available registers: AX BX CX DX SI DI BP SP IP FLAGS CS SS R8 R9 R10 R11 R12 R13 R14 R15'
60 then
61 echo "Register capture test [Skipped missing registers]"
62 return
63 fi
64 if ! perf record -o - --intr-regs=di,r8,dx,cx -e cpu/br_inst_retired.near_call/p \
65 -c 1000 --per-thread true 2> /dev/null \
66 | perf script -F ip,sym,iregs -i - 2> /dev/null \
67 | egrep -q "DI:"
68 then
69 echo "Register capture test [Failed missing output]"
70 err=1
71 return
72 fi
73 echo "Register capture test [Success]"
74}
75
76test_per_thread
77test_register_capture
78
79cleanup
80exit $err