Messages in this thread | | | From | Jonathan Woithe <> | Subject | Re: 2.6.16-rt11: Hires timer makes sleep wait far too long | Date | Wed, 5 Apr 2006 09:51:49 +0930 (CST) |
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Thomas
> On Tue, 2006-04-04 at 13:10 +0930, Jonathan Woithe wrote: > > The actual amount of time waited by a "sleep 1" call from bash was tested > > at least twice for each timer source: > > > > pit: 12 seconds, 29 seconds, 28 seconds > > tsc: 45 seconds, 45 seconds > > acpi_pm: 45 seconds, 29 seconds > > jiffies: 45 seconds, 32 seconds > > Hmm, can you please send me your .config and the bootlog of the > machine ?
Because of the size of the files I've posted this privately. The following are extracts from the files in case others are interested.
Selected boot messages with hr-timers enabled: ACPI: PM-Timer IO Port: 0x1008 ACPI: Local APIC address 0xfee00000 ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled) Processor #0 6:13 APIC version 20 : Detected 1995.072 MHz processor. Real-Time Preemption Support (C) 2004-2006 Ingo Molnar : CPU: Intel(R) Pentium(R) M processor 2.00GHz stepping 08 : ENABLING IO-APIC IRQs ..TIMER: vector=0x31 apic1=0 pin1=2 apic2=-1 pin2=-1 Event source pit new caps set: 05 Event source lapic installed with caps set: 02 : Time: tsc clocksource has been installed. hrtimers: Switched to high resolution mode CPU 0 : Time: acpi_pm clocksource has been installed. hrtimers: Switched to high resolution mode CPU 0
Config options related to timers: CONFIG_HPET_TIMER=y CONFIG_HPET_EMULATE_RTC=y CONFIG_HIGH_RES_TIMERS=y CONFIG_HIGH_RES_RESOLUTION=10000 : CONFIG_X86_PM_TIMER=y
Regards jonathan - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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