全志平台方案CPU频率切频稳定性测试

阿志小管家

发布于 2024-02-02 14:44:01

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发布于 2024-02-02 14:44:01

最近用全志的方案做CPU频率切频稳定性测试，就是不停地切换频率，测试CPU跑在每个频率上时候的稳定性，测试的设计思路如下：（以R331为例）

1.先把cpu频率调到1200M，跑memtester 10M 1000, 300秒后kill掉

2.将频率调到1104M,跑30秒memtester,然后再往下调一档，继续跑30秒memtester,依此类推 3.每档都跑30秒，直到最低档60M时跑300秒 4.CPU频率从60M开始，一档档往上升，每档跑30秒memtester,逆着降频时候的流程跑。 5.重复1.

cpu的频率点：1.2G 1.104G 1.008G 912M 816M 720M 648M 600M 504M 480M 408M 312M 240M 120M 60M

调频策略选的是userspace，就是用户想跑多少就跑多少：

echo userspace > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor

全志的频率一般是写死几个等级，在只能在几个等级之间切换，比如R331就是上面的:

1.2G 1.104G 1.008G 912M 816M 720M 648M 600M 504M 480M 408M 312M 240M 120M 60M

这些参数是经过全志芯片测试的，为什么这些数值不知道，好像和倍频有关。

附测试脚本（一项项暴力写死循环）：

# Put your custom commands here that should be executed once
# the system init finished. By default this file does nothing.
test_count=0
test_count_total=99999
sleep_time_long=300
sleep_time_short=30

#set CPU modle to userspace,set MAX frep to 1200M,set MIN frep to 60M
echo userspace > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
echo 1200000 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq
echo 60000 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq

while [ ${test_count} -le  ${test_count_total} ]
do
	#test times
	let test_count+=1
	echo "test count: "${test_count}
	
	#1.set CPU freq 1200M
	echo 1200000 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed
	echo -e "\nSET CPU FREQ :"
	cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq
	memtester 10M 1000   &
	sleep ${sleep_time_long}
	killall memtester
	
	#2.set CPU freq 1104M
	echo 1104000 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed
	echo -e "\nSET CPU FREQ :"
	cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq
	memtester 10M 1000  &
	sleep ${sleep_time_short}
	killall memtester

	#3.set CPU freq 1008M
	echo 1008000 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed
	echo -e "\nSET CPU FREQ :"
	cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq
	memtester 10M 1000  &
	sleep ${sleep_time_short}
	killall memtester

	#4.set CPU freq 912M
	echo 912000 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed
	echo -e "\nSET CPU FREQ :"
	cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq
	memtester 10M 1000  &
	sleep ${sleep_time_short}
	killall memtester

	#5.set CPU freq 816M
	echo 816000 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed
	echo -e "\nSET CPU FREQ :"
	cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq
	memtester 10M 1000  &
	sleep ${sleep_time_short}
	killall memtester

	#6.set CPU freq 720M
	echo 720000 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed
	echo -e "\nSET CPU FREQ :"
	cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq
	memtester 10M 1000  &
	sleep ${sleep_time_short}
	killall memtester

	#7.set CPU freq 648M
	echo 648000 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed
	echo -e "\nSET CPU FREQ :"
	cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq
	memtester 10M 1000  &
	sleep ${sleep_time_short}
	killall memtester

	#8.set CPU freq 600M
	echo 600000 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed
	echo -e "\nSET CPU FREQ :"
	cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq
	memtester 10M 1000  &
	sleep ${sleep_time_short}
	killall memtester

	#9.set CPU freq 504M
	echo 504000 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed
	echo -e "\nSET CPU FREQ :"
	cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq
	memtester 10M 1000  &
	sleep ${sleep_time_short}
	killall memtester

	#10.set CPU freq 480
	echo 480000 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed
	echo -e "\nSET CPU FREQ :"
	cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq
	memtester 10M 1000  &
	sleep ${sleep_time_short}
	killall memtester

	#11.set CPU freq 408M
	echo 408000 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed
	echo -e "\nSET CPU FREQ :"
	cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq
	memtester 10M 1000  &
	sleep ${sleep_time_short}
	killall memtester

	#12.set CPU freq 312M
	echo 312000 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed
	echo -e "\nSET CPU FREQ :"
	cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq
	memtester 10M 1000  &
	sleep ${sleep_time_short}
	killall memtester

	#13.set CPU freq 240M
	echo 240000 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed
	echo -e "\nSET CPU FREQ :"
	cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq
	memtester 10M 1000  &
	sleep ${sleep_time_short}
	killall memtester

	#14.set CPU freq 120M
	echo 120000 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed
	echo -e "\nSET CPU FREQ :"
	cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq
	memtester 10M 1000  &
	sleep ${sleep_time_short}
	killall memtester

	#15.set CPU freq 60M
	echo 60000 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed
	echo -e "\nSET CPU FREQ :"
	cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq
	memtester 10M 1000  &
	sleep ${sleep_time_long}
	killall memtester

	#16.set CPU freq 120M
	echo 120000 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed
	echo -e "\nSET CPU FREQ :"
	cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq
	memtester 10M 1000 &
	sleep ${sleep_time_short}
	killall memtester

	#17.set CPU freq 240M
	echo 240000 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed
	echo -e "\nSET CPU FREQ :"
	cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq
	memtester 10M 1000  &
	sleep ${sleep_time_short}
	killall memtester

	#18.set CPU freq 312M
	echo 312000 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed
	echo -e "\nSET CPU FREQ :"
	cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq
	memtester 10M 1000  &
	sleep ${sleep_time_short}
	killall memtester

	#19.set CPU freq 408M
	echo 408000 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed
	echo -e "\nSET CPU FREQ :"
	cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq
	memtester 10M 1000  &
	sleep ${sleep_time_short}
	killall memtester

	#20.set CPU freq 480M
	echo 480000 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed
	echo -e "\nSET CPU FREQ :"
	cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq
	memtester 10M 1000  &
	sleep ${sleep_time_short}
	killall memtester

	#21.set CPU freq 504M
	echo 504000 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed
	echo -e "\nSET CPU FREQ :"
	cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq
	memtester 10M 1000  &
	sleep ${sleep_time_short}
	killall memtester

	#22.set CPU freq 600M
	echo 600000 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed
	echo -e "\nSET CPU FREQ :"
	cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq
	memtester 10M 1000  &
	sleep ${sleep_time_short}
	killall memtester

	#23.set CPU freq 648M
	echo 648000 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed
	echo -e "\nSET CPU FREQ :"
	cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq
	memtester 10M 1000  &
	sleep ${sleep_time_short}
	killall memtester

	#24.set CPU freq 720M
	echo 720000 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed
	echo -e "\nSET CPU FREQ :"
	cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq
	memtester 10M 1000  &
	sleep ${sleep_time_short}
	killall memtester

	#25.set CPU freq 816M
	echo 816000 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed
	echo -e "\nSET CPU FREQ :"
	cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq
	memtester 10M 1000  &
	sleep ${sleep_time_short}
	killall memtester

	#26.set CPU freq 912M
	echo 912000 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed
	echo -e "\nSET CPU FREQ :"
	cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq
	memtester 10M 1000  &
	sleep ${sleep_time_short}
	killall memtester

	#27.set CPU freq 1008M
	echo 1008000 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed
	echo -e "\nSET CPU FREQ :"
	cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq
	memtester 10M 1000  &
	sleep ${sleep_time_short}
	killall memtester

	#28.set CPU freq 1104M
	echo 1104000 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed
	echo -e "\nSET CPU FREQ :"
	cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq
	memtester 10M 1000  &
	sleep ${sleep_time_short}
	killall memtester
done
	echo "test_count: " ${test_count}

exit 0

*20181008修改，修正了脚本中切换的频率，把所有的支持的频率都加上了。

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原始发表：2024-02-02，如有侵权请联系 cloudcommunity@tencent.com 删除

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