全志プラットフォーム方案CPU周波数切周波数安定性テスト

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最近全志の方案でCPU周波数の切周波数の安定性のテストをして、ひっきりなしに周波数を切り替えて、CPUが各周波数の上で走る時の安定性をテストして、テストの設計の構想は以下の通りです:(R 331を例にとります)
1.まずcpu周波数を1200 Mに調整して、memtester 10 M 1000を走って、300秒後にkillが落ちます
2.周波数を1104 Mにして、30秒memtesterを走って、それから1段下に調整して、30秒memtesterを走り続けて、このように3.各段は30秒、最下位60 Mまで300秒4を走る.CPU周波数は60 Mから1段ずつ上昇し、1段ごとに30秒memtesterを走り、ダウンタイムの流れに逆らって走る. 5.繰り返し1.
cpuの周波数点:1.2 G 1.104 G 1.008 G 912 M 816 M 720 M 648 M 600 M 504 M 480 M 408 M 312 M 240 M 120 M 60 M
周波数変調ポリシーはuserspaceを選択し、ユーザーが走りたいだけ走ることです.
echo userspace >/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
全志の周波数は一般的にいくつかの等級を書くのが死んで、いくつかの等級の間でしか切り替えることができなくて、例えばR 331は上のです:
1.2G 1.104G 1.008G 912M 816M 720M 648M 600M 504M 480M 408M 312M 240M 120M 60M
これらのパラメータは全志チップでテストされたが,なぜこれらの数値が分からないのか,倍周波数に関係しているようだ.

テストスクリプト(暴力的な書き込みの死のサイクル):

# 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 "
SET 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 "
SET 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 "
SET 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 "
SET 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 "
SET 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 "
SET 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 "
SET 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 "
SET 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 "
SET 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 "
SET 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 "
SET 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 "
SET 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 "
SET 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 "
SET 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 "
SET 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 "
SET 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 "
SET 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 "
SET 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 "
SET 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 "
SET 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 "
SET 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 "
SET 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 "
SET 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 "
SET 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 "
SET 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 "
SET 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 "
SET 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 "
SET 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修正し、スクリプトで切り替えた頻度を修正し、すべてのサポートの頻度を加算しました.

杭電oj符号化2031

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