Re: [kvm-devel] system time

2007-09-27 Thread Simon Gao
Farkas Levente wrote: > Avi Kivity wrote: > >>> this means it's better to run ntpd on all guests even if it's running on >>> the host:-(( >>> >>> >> I think there are issues with running ntp on the guest due to tsc being >> very inaccurate on virtualized guests. >> > > does this m

Re: [kvm-devel] system time

2007-09-27 Thread Avi Kivity
Farkas Levente wrote: > Avi Kivity wrote: > >>> this means it's better to run ntpd on all guests even if it's running on >>> the host:-(( >>> >>> >> I think there are issues with running ntp on the guest due to tsc being >> very inaccurate on virtualized guests. >> > > does this m

Re: [kvm-devel] system time

2007-09-27 Thread Farkas Levente
Avi Kivity wrote: >> this means it's better to run ntpd on all guests even if it's running on >> the host:-(( >> > > I think there are issues with running ntp on the guest due to tsc being > very inaccurate on virtualized guests. does this means itás not possible to run a guest with accurate t

Re: [kvm-devel] system time

2007-09-27 Thread Gildas
2007/9/27, Farkas Levente <[EMAIL PROTECTED]>: > Avi Kivity wrote: > > Farkas Levente wrote: > >> Avi Kivity wrote: > >> > >>> Haydn Solomon wrote: > >>> > I know I'm not crazy.. now my host and guest clocks are in sync. I'll > leave the guest running for a while and see if it eventually

Re: [kvm-devel] system time

2007-09-27 Thread Avi Kivity
Farkas Levente wrote: > Avi Kivity wrote: > >> Farkas Levente wrote: >> >>> Avi Kivity wrote: >>> >>> Haydn Solomon wrote: > I know I'm not crazy.. now my host and guest clocks are in sync. I'll > leave the guest running for a while and see if

Re: [kvm-devel] system time

2007-09-27 Thread Farkas Levente
Avi Kivity wrote: > Farkas Levente wrote: >> Avi Kivity wrote: >> >>> Haydn Solomon wrote: >>> I know I'm not crazy.. now my host and guest clocks are in sync. I'll leave the guest running for a while and see if it eventually goes ahead of host. >>> Please do

Re: [kvm-devel] system time

2007-09-27 Thread Avi Kivity
Farkas Levente wrote: > Avi Kivity wrote: > >> Haydn Solomon wrote: >> >>> I know I'm not crazy.. now my host and guest clocks are in sync. I'll >>> leave the guest running for a while and see if it eventually goes >>> ahead of host. >>> >>> >> Please do this both with and without -n

Re: [kvm-devel] system time

2007-09-27 Thread Farkas Levente
Avi Kivity wrote: > Haydn Solomon wrote: >> I know I'm not crazy.. now my host and guest clocks are in sync. I'll >> leave the guest running for a while and see if it eventually goes >> ahead of host. >> > > Please do this both with and without -no-kvm-irqchip. The code paths > are very different

Re: [kvm-devel] system time

2007-09-27 Thread Avi Kivity
Haydn Solomon wrote: > I know I'm not crazy.. now my host and guest clocks are in sync. I'll > leave the guest running for a while and see if it eventually goes > ahead of host. > Please do this both with and without -no-kvm-irqchip. The code paths are very different. -- Do not meddle in the i

Re: [kvm-devel] system time

2007-09-26 Thread Haydn Solomon
I know I'm not crazy.. now my host and guest clocks are in sync. I'll leave the guest running for a while and see if it eventually goes ahead of host. On 9/26/07, Haydn Solomon <[EMAIL PROTECTED]> wrote: > > Frakas, I just noticed the same thing. This never used to be the case > though as usually

Re: [kvm-devel] system time

2007-09-26 Thread Haydn Solomon
Frakas, I just noticed the same thing. This never used to be the case though as usually they would be exactly the same time. On 9/26/07, Farkas Levente <[EMAIL PROTECTED]> wrote: > > hi, > there is a strange thing which is just noticed. on our kvm host there is > a ntpd running and synchronize to

[kvm-devel] system time

2007-09-26 Thread Farkas Levente
hi, there is a strange thing which is just noticed. on our kvm host there is a ntpd running and synchronize to some time server and it's time is valid. so i decided that i won't run ntpd on the guest vms since if the host has the right time probably the guest see the same time. but that's not the c

Re: [kvm-devel] System time issues - 64 bit guest

2007-05-06 Thread Steven Wilton
> -Original Message- > From: Dor Laor [mailto:[EMAIL PROTECTED] > Sent: Sunday, 6 May 2007 3:03 PM > To: Steven Wilton; kvm-devel@lists.sourceforge.net > Subject: RE: [kvm-devel] System time issues - 64 bit guest > > >I've got a problem where my gu

Re: [kvm-devel] System time issues - 64 bit guest

2007-05-06 Thread Dor Laor
>I've got a problem where my guest VM's system clock is very inaccurate. >The >host computer is running 4 guest VM's, 2 32-bit Linux (Debian Sarge), 1 >Windows XP and 1 64 bit Linux (Debian Etch). > >The problem I have is that the system clock on the 64 bit Deabin Etch VM is >always either running

[kvm-devel] System time issues - 64 bit guest

2007-05-03 Thread Steven Wilton
I've got a problem where my guest VM's system clock is very inaccurate. The host computer is running 4 guest VM's, 2 32-bit Linux (Debian Sarge), 1 Windows XP and 1 64 bit Linux (Debian Etch). The problem I have is that the system clock on the 64 bit Deabin Etch VM is always either running slow o