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X86 timing: Difference between revisions
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* HPET | * HPET | ||
* TSC since Pentium | * TSC since Pentium | ||
* RTC | * RTC ([http://fxr.watson.org/fxr/source/Documentation/rtc.txt?v=linux-2.6 Linux docs]) | ||
** [[ACPI]] standardized the <tt>cmos-rtc</tt> type, extending the Motorola MC146818 ([http://cateee.net/lkddb/web-lkddb/RTC_DRV_CMOS.html CONFIG_RTC_DRV_CMOS at the LKDD]) | |||
* Linux clocksources vs clockevents | * Linux clocksources vs clockevents | ||
Revision as of 07:43, 27 June 2009
- PIT -- Programmable Interval Timer (eg Intel 8253)
- ACPI counter
- LAPIC counter
- HPET
- TSC since Pentium
- RTC (Linux docs)
- ACPI standardized the cmos-rtc type, extending the Motorola MC146818 (CONFIG_RTC_DRV_CMOS at the LKDD)
- Linux clocksources vs clockevents
