Date: Thu, 17 Jun 1999 00:20:02 -0700 (PDT) From: "Andy V. Oleynik" <andyo@prime.net.ua> To: freebsd-bugs@FreeBSD.org Subject: Re: kern/12022: System clock timewarps Message-ID: <199906170720.AAA28120@freefall.freebsd.org>
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The following reply was made to PR kern/12022; it has been noted by GNATS.
From: "Andy V. Oleynik" <andyo@prime.net.ua>
To: freebsd-gnats-submit@freebsd.org, dwhite@pond.net
Cc:
Subject: Re: kern/12022: System clock timewarps
Date: Thu, 17 Jun 1999 09:55:20 +0300
I have 2 boxes at work:
1. Timecounter "i8254" frequency 1193182 Hz
Timecounter "TSC" frequency 90040111 Hz
CPU: AMD K5 model 0 (90.04-MHz 586-class CPU)
Origin = "AuthenticAMD" Id = 0x501 Stepping=1
Features=0x3bf<FPU,VME,DE,PSE,TSC,MSR,MCE,CX8,APIC>
(BIOS reports: AMD-k5-PR90 CPU,
Award Modular BIOS v4.51PG,
Award P&P BIOS extension v1.0A,
M/B 580VPX-ITE8661-2A5LDL1CC-0)
2.
Sorry, I can't give Timecounters strings 'cos I've removed 3.2-S and
installed 2.2.8-R on this PC due the clock bug.
CPU: AMD K5 model 0 (74.54-MHz 586-class CPU)
Origin = "AuthenticAMD" Id = 0x501 Stepping=1
Features=0x3bf<FPU,VME,DE,PSE,TSC,MSR,MCE,CX8,APIC>
(BIOS reports: AMD-k5-PR75 CPU,
Award Modular BIOS v4.51PG release
03/03/1997S,
Award P&P BIOS extension v1.0A,
M/B I430VX-02071997C-00)
Timecounters on 1st PC:
Jun 14 09:58:28 volodya /kernel: Timecounter "i8254" frequency
1193182 Hz
Jun 14 09:58:28 volodya /kernel: Timecounter "TSC" frequency
90040208 Hz
Jun 14 14:55:40 volodya /kernel: Timecounter "i8254" frequency
1193182 Hz
Jun 14 14:55:40 volodya /kernel: Timecounter "TSC" frequency
90040168 Hz
Jun 14 14:58:47 volodya /kernel: Timecounter "i8254" frequency
1193182 Hz
Jun 14 14:58:47 volodya /kernel: Timecounter "TSC" frequency
90039940 Hz
Jun 15 09:20:31 volodya /kernel: Timecounter "i8254" frequency
1193182 Hz
Jun 15 09:20:31 volodya /kernel: Timecounter "TSC" frequency
90040205 Hz
Jun 15 17:25:56 volodya /kernel: Timecounter "i8254" frequency
1193182 Hz
Jun 15 17:25:56 volodya /kernel: Timecounter "TSC" frequency
90039919 Hz
Jun 16 09:22:18 volodya /kernel: Timecounter "i8254" frequency
1193182 Hz
Jun 16 09:22:18 volodya /kernel: Timecounter "TSC" frequency
90039896 Hz
Jun 17 09:46:25 volodya /kernel: Timecounter "i8254" frequency
1193182 Hz
Jun 17 09:46:25 volodya /kernel: Timecounter "TSC" frequency
90039989 Hz
Jun 17 09:52:11 volodya /kernel: Timecounter "i8254" frequency
1193182 Hz
Jun 17 09:52:11 volodya /kernel: Timecounter "TSC" frequency
90040111 Hz
On both was (on 1st remains) installed 3.2-R upgaded to STABLE.
Again, kernel clock latancy on both is about 55 min/hour (real 1 hour =
5 min on PC).
APM disabled on both.
--
WBW Andy V. Oleynik
(prime.net.ua's sysadmin)
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