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X86 timing: Difference between revisions
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* [[ACPI]] counter | * [[ACPI]] counter | ||
* LAPIC counter | * LAPIC counter | ||
* HPET | * HPET. Unprivileged programmability is limited by <tt>/proc/sys/dev/hpet/max-user-freq</tt> (in Hz): | ||
<pre>[recombinator](1) $ cat /proc/sys/dev/hpet/max-user-freq | |||
64 | |||
[recombinator](0) $ </pre> | |||
* TSC since Pentium | * TSC since Pentium | ||
* RTC ([http://fxr.watson.org/fxr/source/Documentation/rtc.txt?v=linux-2.6 Linux docs]) | * RTC ([http://fxr.watson.org/fxr/source/Documentation/rtc.txt?v=linux-2.6 Linux docs]) |