Re: The clock is running too fast
Hi Dan, The system clock has been running correctly more than 16 hours. > I'm sorry, I don't know what 'ntc' is. Do you mean 'ntp'? You can use ntp > or not ... if your timing hardware is off, ntp will constantly try to slew > the time back to where it should be, which will a) mean your systems > concept of time is very non-linear and b) fill the log with warning > messages. It's actually a good check to see if the timer's good (although > an slmost equally good check is to sit there and look at the clock). Oh sorry for my typing mistake. Yes I meant 'ntp'. It synchronyses the system clock. Even if the PC is not running round the clock. Whenvever you turn on the PC, it checkes the time and corrects it. I have it setup on a Debian PC.; > I forgot to mention that besides changing /etc/sysctl.conf, you have to > reboot. If you don't want to reboot, you will have to do "sysctl > kern.timecounter.hardware=i8254" at a prompt. But I'm not sure if that's a > value that can be set after the system boots. I have to reboot the PC otherwise the system clock will not be adjusted, still running on double speed. > I suggested "i8254" because it's the only device that was supplying good > time values on my system. If you have trouble with that device, you might > also want to try "TSC". $ dmesg.Thetimeclock dmesg.Thetimeclock: not found $ dmesg | grep Timecounter Timecounter "i8254" frequency 1193182 Hz quality 0 Timecounter "ACPI-safe" frequency 3579545 Hz quality 1000 Timecounter "TSC" frequency 350796390 Hz quality 800 Timecounters tick every 10.000 msec What are their difference in function between i8254/ACPI-safe/TSC B.R. Stephen > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] Behalf Of Stephen Liu > Sent: March 19, 2004 01:12 > To: [EMAIL PROTECTED] > Subject: Re: The clock is running too fast > > > Hi Dan, > > Thanks for your advice. > > > I had a similar problem on one of the machines at work. Here is a memo I > > made to myself to remind me of how to fix the problem in the future: > > > > The "ACPI-safe" Timecounter does not work (it is way, WAY too fast). To > > get around this, add the following line to /etc/sysctl.conf: > > > > kern.timecounter.hardware=i8254 > > Added above line to /etc/sysctl.conf > > $ cat /etc/sysctl.conf > vfs.usermount=1 > kern.timecounter.hardware=i8254 > > Now only 2 lines in this file. > > I have adjusted the clock thereafter and will check it again later > > > There are multiple pieces of hardware capable of supplying timing > > information to the OS. "dmesg | grep Timecounter" should give you a list > > of all such devices. > > > > I think this is an ACPI-related problem, since that is the technology I > > understand the least at the moment. > > $ dmesg | grep Timecounter > Timecounter "i8254" frequency 1193182 Hz quality 0 > Timecounter "ACPI-safe" frequency 3579545 Hz quality 1000 > Timecounter "TSC" frequency 350797051 Hz quality 800 > Timecounters tick every 10.000 msec > > Shall I run 'ntc' to synchronize the clock. > > B.R. > Stephen > > > -Original Message- > > From: [EMAIL PROTECTED] > > [mailto:[EMAIL PROTECTED] Behalf Of Stephen Liu > > Sent: March 18, 2004 21:47 > > To: [EMAIL PROTECTED] > > Subject: The clock is running too fast > > > > > > Hi folks, > > > > AMD CUP > > FreeBSD 5.2 > > > > The clock on KDE desktop is running on double speed compelling me to > > adjust > > > it > > periodically. Kindly advise how to fix this problem. > > > > TIA > > > > B.R. > > Stephen Liu ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
RE: The clock is running too fast
Hola I'm sorry, I don't know what 'ntc' is. Do you mean 'ntp'? You can use ntp or not ... if your timing hardware is off, ntp will constantly try to slew the time back to where it should be, which will a) mean your systems concept of time is very non-linear and b) fill the log with warning messages. It's actually a good check to see if the timer's good (although an slmost equally good check is to sit there and look at the clock). I forgot to mention that besides changing /etc/sysctl.conf, you have to reboot. If you don't want to reboot, you will have to do "sysctl kern.timecounter.hardware=i8254" at a prompt. But I'm not sure if that's a value that can be set after the system boots. I suggested "i8254" because it's the only device that was supplying good time values on my system. If you have trouble with that device, you might also want to try "TSC". -Dan -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Stephen Liu Sent: March 19, 2004 01:12 To: [EMAIL PROTECTED] Subject: Re: The clock is running too fast Hi Dan, Thanks for your advice. > I had a similar problem on one of the machines at work. Here is a memo I > made to myself to remind me of how to fix the problem in the future: > > The "ACPI-safe" Timecounter does not work (it is way, WAY too fast). To > get around this, add the following line to /etc/sysctl.conf: > > kern.timecounter.hardware=i8254 Added above line to /etc/sysctl.conf $ cat /etc/sysctl.conf vfs.usermount=1 kern.timecounter.hardware=i8254 Now only 2 lines in this file. I have adjusted the clock thereafter and will check it again later > There are multiple pieces of hardware capable of supplying timing > information to the OS. "dmesg | grep Timecounter" should give you a list > of all such devices. > > I think this is an ACPI-related problem, since that is the technology I > understand the least at the moment. $ dmesg | grep Timecounter Timecounter "i8254" frequency 1193182 Hz quality 0 Timecounter "ACPI-safe" frequency 3579545 Hz quality 1000 Timecounter "TSC" frequency 350797051 Hz quality 800 Timecounters tick every 10.000 msec Shall I run 'ntc' to synchronize the clock. B.R. Stephen > -Original Message- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] Behalf Of Stephen Liu > Sent: March 18, 2004 21:47 > To: [EMAIL PROTECTED] > Subject: The clock is running too fast > > > Hi folks, > > AMD CUP > FreeBSD 5.2 > > The clock on KDE desktop is running on double speed compelling me to adjust > it > periodically. Kindly advise how to fix this problem. > > TIA > > B.R. > Stephen Liu ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]" ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
Re: The clock is running too fast
Hi Dan, Thanks for your advice. > I had a similar problem on one of the machines at work. Here is a memo I > made to myself to remind me of how to fix the problem in the future: > > The "ACPI-safe" Timecounter does not work (it is way, WAY too fast). To > get around this, add the following line to /etc/sysctl.conf: > > kern.timecounter.hardware=i8254 Added above line to /etc/sysctl.conf $ cat /etc/sysctl.conf vfs.usermount=1 kern.timecounter.hardware=i8254 Now only 2 lines in this file. I have adjusted the clock thereafter and will check it again later > There are multiple pieces of hardware capable of supplying timing > information to the OS. "dmesg | grep Timecounter" should give you a list > of all such devices. > > I think this is an ACPI-related problem, since that is the technology I > understand the least at the moment. $ dmesg | grep Timecounter Timecounter "i8254" frequency 1193182 Hz quality 0 Timecounter "ACPI-safe" frequency 3579545 Hz quality 1000 Timecounter "TSC" frequency 350797051 Hz quality 800 Timecounters tick every 10.000 msec Shall I run 'ntc' to synchronize the clock. B.R. Stephen > -Original Message- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] Behalf Of Stephen Liu > Sent: March 18, 2004 21:47 > To: [EMAIL PROTECTED] > Subject: The clock is running too fast > > > Hi folks, > > AMD CUP > FreeBSD 5.2 > > The clock on KDE desktop is running on double speed compelling me to adjust > it > periodically. Kindly advise how to fix this problem. > > TIA > > B.R. > Stephen Liu ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
Re: The clock is running too fast
On Friday 19 March 2004 13:04, Chuck McManis wrote: > If you're running it on a dual processor then you're taking the clock > interrupt on both CPUs and causing time to pass at double time. Hi Chuck, Tks for your response. The PC is running only one CPU but overclock. I don't know what will be the compensation. B.R. Stephen > At 08:46 PM 3/18/2004, Stephen Liu wrote: > >Hi folks, > > > >AMD CUP > >FreeBSD 5.2 > > > >The clock on KDE desktop is running on double speed compelling me to > >adjust it > >periodically. Kindly advise how to fix this problem. > > > >TIA > > > >B.R. > >Stephen Liu ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
RE: The clock is running too fast
Hola, I had a similar problem on one of the machines at work. Here is a memo I made to myself to remind me of how to fix the problem in the future: The "ACPI-safe" Timecounter does not work (it is way, WAY too fast). To get around this, add the following line to /etc/sysctl.conf: kern.timecounter.hardware=i8254 There are multiple pieces of hardware capable of supplying timing information to the OS. "dmesg | grep Timecounter" should give you a list of all such devices. I think this is an ACPI-related problem, since that is the technology I understand the least at the moment. :) -Dan -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Stephen Liu Sent: March 18, 2004 21:47 To: [EMAIL PROTECTED] Subject: The clock is running too fast Hi folks, AMD CUP FreeBSD 5.2 The clock on KDE desktop is running on double speed compelling me to adjust it periodically. Kindly advise how to fix this problem. TIA B.R. Stephen Liu ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]" ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
Re: The clock is running too fast
If you're running it on a dual processor then you're taking the clock interrupt on both CPUs and causing time to pass at double time. --Chuck At 08:46 PM 3/18/2004, Stephen Liu wrote: Hi folks, AMD CUP FreeBSD 5.2 The clock on KDE desktop is running on double speed compelling me to adjust it periodically. Kindly advise how to fix this problem. TIA B.R. Stephen Liu ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]" ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
