Hi everyone again
I found this problem
i have vmware piaf a2billing
i noticed that my clock time is very delayed just recently, when i just installed piaf clock was fine, now a real minute last 20 sec when i run >date.
I found this in the web:
http://rextang.net/blogs/work/archive/2 ... /4516.aspx-----------------------------------
A search to Google finally found the answer. From VMWare KB. It's exactly the answer of this problem if you are running kernel 2.6 inside VMWare. the reason that caused the slowing time inside guest system is because of that the guest clock frequency is setting too high than the host OS can offer. in 2.4 kernel the clock rate is set to 100HZ and after 2.6 kernel the clock is set to 1000HZ on compiling time, thus cause the timer in guest OS slower than host OS. refer to this KB for more detail explaination.
Just follow what the KB said to tune bootup kernel options for both slow time and quick time problem, like the following (GRUB case):
image=/boot/vmlinuz label="linux"
root=/dev/hda1 initrd=/boot/initrd.img
append="resume=/dev/hda6 splash=silent clock=pit nosmp noapic nolapic"
read-only
"clock=pit" is to fix quick clock problem, "nosmp noapic nolapic" is to fix slow clock problem.
after a reboot of guest linux (both my Fedora one and CentOS one) , the clock is back to normal and strangely that the ntpd also back to normal work and can query outside time server without problems. cool!
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Should I do this procedure?
thanks for your knowledge and help