:~/Desktop>cat /sys/devices/system/clocksource/clocksource0/available_clocksource
tsc hpet acpi_pm
:~/Desktop>cat /sys/devices/system/clocksource/clocksource0/current_clocksource
tsc
设置HPET为当前时钟源
echo 'tsc' > /sys/devices/system/clocksource/clocksource0/current_clocksource
查看timer信息:
cat /proc/timer_list