[*] HPET Timer Support
[*] Provide RTC interrupt
[*] HPET - High Precision Event Timer
[*] Allow mmap of HPET
http://tlug.up.ac.za/guides/lkcg/arch_i386.html
HPET Timer Support HPET_TIMER
This enables the use of the HPET for the kernel's internal timer. HPET is
the next generation timer replacing legacy 8254s. You can safely choose Y
here. However, HPET will only be activated if the platform and the BIOS
support this feature. Otherwise the 8254 will be used for timing services.
Choose N to continue using the legacy 8254 timer.
How do I determine if my BIOS has this feature?
$ dmesg | grep -i hpet
$ dmesg | grep -i 8254
$ dmesg | grep -i timer
..TIMER: vector=0x31 pin1=2 pin2=-1
PCI: Setting latency timer of device 0000:02:01.0 to 64
$
Assuming it does, is there any reason to use or not to use this feature?
Thanks,
Justin.
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