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Date:      Mon, 12 Mar 2012 16:08:50 +0100
From:      Ivan Voras <ivoras@freebsd.org>
To:        freebsd-stable@freebsd.org
Subject:   Re: Serverworks HT-1000 & HPET event timer
Message-ID:  <jjl3i4$71j$1@dough.gmane.org>
In-Reply-To: <4F5A2513.9050301@FreeBSD.org>
References:  <4F5A2513.9050301@FreeBSD.org>

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On 09/03/2012 16:43, Alexander Motin wrote:
> Hi.
>=20
> Does anybody have success story of using HPET event timer (not time
> counter!) on Serverworks HT-1000 chipset under FreeBSD 9/10?
>
> I was reported about problems with it on HP BL465c G6 blade system and
> now thinking whether it is global problem or specific to this system.

For what it's worth, I have a G1 and everything works by default:

hpet0: <High Precision Event Timer> iomem 0xfed00000-0xfed003ff on acpi0
Timecounter "HPET" frequency 14318180 Hz quality 950
Event timer "HPET" frequency 14318180 Hz quality 450
Event timer "HPET1" frequency 14318180 Hz quality 440
Event timer "HPET2" frequency 14318180 Hz quality 440

kern.eventtimer.choice: HPET(450) HPET1(440) HPET2(440) LAPIC(400)
i8254(100) RTC(0)
kern.eventtimer.et.LAPIC.flags: 15
kern.eventtimer.et.LAPIC.frequency: 0
kern.eventtimer.et.LAPIC.quality: 400
kern.eventtimer.et.i8254.flags: 1
kern.eventtimer.et.i8254.frequency: 1193182
kern.eventtimer.et.i8254.quality: 100
kern.eventtimer.et.HPET.flags: 3
kern.eventtimer.et.HPET.frequency: 14318180
kern.eventtimer.et.HPET.quality: 450
kern.eventtimer.et.HPET1.flags: 3
kern.eventtimer.et.HPET1.frequency: 14318180
kern.eventtimer.et.HPET1.quality: 440
kern.eventtimer.et.HPET2.flags: 3
kern.eventtimer.et.HPET2.frequency: 14318180
kern.eventtimer.et.HPET2.quality: 440
kern.eventtimer.et.RTC.flags: 17
kern.eventtimer.et.RTC.frequency: 32768
kern.eventtimer.et.RTC.quality: 0
kern.eventtimer.periodic: 0
kern.eventtimer.timer: HPET
kern.eventtimer.idletick: 0
kern.eventtimer.singlemul: 2

# vmstat -i
interrupt                          total       rate
irq1: atkbd0                          18          0
irq20: hpet0                  1625923139        658
irq22: uhci4                     4323336          1
irq256: bce0                   772213596        312
irq257: ciss0                   40836282         16
irq258: isp0                    49525760         20
irq259: isp1                          84          0
Total                         2492822215       1008



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