Re: [Qemu-devel] Fedora Core 2 very slow

[ben]

Hi,

My host is a windows XP host (mingw) not a Linux host.
My guest is a Fedora guest
Fedora Core 2 includes a 2.6.5 kernel . I just tried to install newer 
kernel (through rpm install) and to modify clock kernel parameter with 
grub :
kernel /vmli... clock=pit

Next try :
I'm installing a real linux partition on my hd to try with a Linux host. 
(I wonder if it's a windows host problem).
PS1 : How can i determine what s going wrong with the clock (debug mode 
for qemu ?). What information could be usefull to debug the problem ?

PS2: Aux développeurs de qemu : Joli Travail


Fabrice Bellard a écrit :

> Sorry for this dumb question, but are you using a 2.6 host kernel or 
> did you do the 'echo 1024 > /proc/sys/dev/rtc/max-user-freq' which is 
> written when you launch QEMU ? Otherwise, you have no change of using 
> a 2.6 based guest OS...
>
> Fabrice.
>
> ben wrote:
>
> > After install fediora is still slow :
> > Only some functions like sleep take 10x the real time.
> > tried to boot with different clocks
> > clock=pit
> > clock=hpet
> > acpi=off
> > tried to boot with different kernels :
> > - 2.6.5.1.358
> > - 2.6.6.1.435
> > - 2.6.7.1.437
> >
> > Is the problem Windows host specific ?
> >
> > Host : Win XP
> > Guest : Fedora core 2
> > qemu 0.5.6
> >
> >
> >
> >
> >
> >
> >
> >
> >
> > ben a écrit :
> >
> > > On windows while booting i ve got a message "TSC cannot be used as a 
> > > timesource"
> > > and then computer is very slow.
> > > It seems that there s a problem with clock timing in fedora and 
> > > others kernel.
> > > I managed to make it faster with this boot option at the prompt
> > >    linux clock=hpet
> > > (found with google)
> > > I m searching for the most appropriate setinng for clock.
> > >
> > > Host : Win XP
> > > qemu 0.5.6
> > >
> > >
> > > Jean-Michel POURE a écrit :
> > >
> > > > > I tried it as well, and IMHO, to say that it is very slow is a very
> > > > > delicate understatement. I've tried giving it more RAM, but it is
> > > > > nonetheless unbelievably slow.
> > > > >   
> > > >
> > > >
> > > >
> > > >
> > > > Dear friends,
> > > >
> > > > For debugging purpose, I uploaded an 833 Mb image of Fedora Core-2 to:
> > > > http://www.poure.com/qemu/fedora-c2.img.tar.bz2
> > > >
> > > > Installing a Fedora Core 2 distro can take up to 10 hours (also 
> > > > very slow!).Downloading will save you a lot of time. After 
> > > > unpacking, you can boot the image with the following parameters:
> > > >
> > > > qemu -hda fedora-c2.img -boot c -m 128 -pci -cirrusvga -user-net
> > > >
> > > > The upload is intended for people willing to understand the bugs 
> > > > #9373 and #9374 entered on http://savannah.nongnu.org/bugs/?group=qemu
> > > >
> > > > Also I contacted Stefano to participate in the OS Zoo project. We 
> > > > are going to work in team to provide ready-to-run images for a wide 
> > > > variety of OSes.
> > > >
> > > > Best regards,
> > > > Jean-Michel Pouré
> > > >
> > > >
> > > > _______________________________________________
> > > > Qemu-devel mailing list
> > > > address@hidden
> > > > http://lists.nongnu.org/mailman/listinfo/qemu-devel
> > > >
> > > >  
> > >
> > >
> > >
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> >
> >
> >
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