tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1#!/bin/bash
2#
3# Special test cases reported by people
4
5# Testcase 1: Reported here: http://marc.info/?l=linux-pm&m=140618592709858&w=2
6
7# protect against multiple inclusion
8if [ $FILE_SPECIAL ]; then
9 return 0
10else
11 FILE_SPECIAL=DONE
12fi
13
14source cpu.sh
15source cpufreq.sh
16source governor.sh
17
18# Test 1
19# $1: policy
20__simple_lockdep()
21{
22 # switch to ondemand
23 __switch_governor $1 "ondemand"
24
25 # cat ondemand files
26 local ondir=$(find_gov_directory $1 "ondemand")
27 if [ -z $ondir ]; then
28 printf "${FUNCNAME[0]}Ondemand directory not created, quit"
29 return
30 fi
31
32 cat $ondir/*
33
34 # switch to conservative
35 __switch_governor $1 "conservative"
36}
37
38simple_lockdep()
39{
40 printf "** Test: Running ${FUNCNAME[0]} **\n"
41
42 for_each_policy __simple_lockdep
43}
44
45# Test 2
46# $1: policy
47__concurrent_lockdep()
48{
49 for i in `seq 0 100`; do
50 __simple_lockdep $1
51 done
52}
53
54concurrent_lockdep()
55{
56 printf "** Test: Running ${FUNCNAME[0]} **\n"
57
58 for_each_policy_concurrent __concurrent_lockdep
59}
60
61# Test 3
62quick_shuffle()
63{
64 # this is called concurrently from governor_race
65 for I in `seq 1000`
66 do
67 echo ondemand | sudo tee $CPUFREQROOT/policy*/scaling_governor &
68 echo userspace | sudo tee $CPUFREQROOT/policy*/scaling_governor &
69 done
70}
71
72governor_race()
73{
74 printf "** Test: Running ${FUNCNAME[0]} **\n"
75
76 # run 8 concurrent instances
77 for I in `seq 8`
78 do
79 quick_shuffle &
80 done
81}
82
83# Test 4
84# $1: cpu
85hotplug_with_updates_cpu()
86{
87 local filepath="$CPUROOT/$1/cpufreq"
88
89 # switch to ondemand
90 __switch_governor_for_cpu $1 "ondemand"
91
92 for i in `seq 1 5000`
93 do
94 reboot_cpu $1
95 done &
96
97 local freqs=$(cat $filepath/scaling_available_frequencies)
98 local oldfreq=$(cat $filepath/scaling_min_freq)
99
100 for j in `seq 1 5000`
101 do
102 # Set all frequencies one-by-one
103 for freq in $freqs; do
104 echo $freq > $filepath/scaling_min_freq
105 done
106 done
107
108 # restore old freq
109 echo $oldfreq > $filepath/scaling_min_freq
110}
111
112hotplug_with_updates()
113{
114 for_each_non_boot_cpu hotplug_with_updates_cpu
115}