[Qemu-devel] Fedora Core 2 very slow

[Qemu-devel] Fedora Core 2 very slow

[Jean-Michel POURE]

Dear all,

I installed Fedora Core 2 guest (using today's Qemu CVS version as usual).

After installation, Fedora starts incredibly slow (as slow as if we were 
running Bochs) and boots in 10 minutes. Adding or removing -pci -cirrusvga 
-user-net options does not change anything. It is still tremendously slow.

Also, I can notice that Fedora does not boot in graphical mode. Fedora and 
SuSE kernels are patched with http://www.bootsplash.org, which does not seem 
to work with Qemu (at least with -cirrusvga option).

Can anyone using Fedora Core 2 as a guest confirm that it is very slow?

Cheers,
Jean-Michel Pouré

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

[David Sibai]

Hello,
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. 

Regards,
	David

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

[Jean-Michel POURE]

Le jeudi 17 Juin 2004 23:50, David Sibai 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 David,

It is incredibly slow. I will upload the image on the Net today
so that people can download it and understand what is going on.

Cheers,
Jean-Michel

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

[Jean-Michel POURE]

> 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

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

[ben]

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
>Qemu-devel@nongnu.org
>http://lists.nongnu.org/mailman/listinfo/qemu-devel
>
>  
>

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

[ben]

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
>> Qemu-devel@nongnu.org
>> http://lists.nongnu.org/mailman/listinfo/qemu-devel
>>
>>  
>>
>
>
>
> _______________________________________________
> Qemu-devel mailing list
> Qemu-devel@nongnu.org
> http://lists.nongnu.org/mailman/listinfo/qemu-devel
>

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

[Fabrice Bellard]

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
>>> Qemu-devel@nongnu.org
>>> http://lists.nongnu.org/mailman/listinfo/qemu-devel
>>>
>>>  
>>>
>>
>>
>>
>> _______________________________________________
>> Qemu-devel mailing list
>> Qemu-devel@nongnu.org
>> http://lists.nongnu.org/mailman/listinfo/qemu-devel
>>
> 
> 
> 
> _______________________________________________
> Qemu-devel mailing list
> Qemu-devel@nongnu.org
> http://lists.nongnu.org/mailman/listinfo/qemu-devel
> 

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
>>>> Qemu-devel@nongnu.org
>>>> http://lists.nongnu.org/mailman/listinfo/qemu-devel
>>>>
>>>>  
>>>>
>>>
>>>
>>>
>>> _______________________________________________
>>> Qemu-devel mailing list
>>> Qemu-devel@nongnu.org
>>> http://lists.nongnu.org/mailman/listinfo/qemu-devel
>>>
>>
>>
>>
>> _______________________________________________
>> Qemu-devel mailing list
>> Qemu-devel@nongnu.org
>> http://lists.nongnu.org/mailman/listinfo/qemu-devel
>>
>
>
>
>
> _______________________________________________
> Qemu-devel mailing list
> Qemu-devel@nongnu.org
> http://lists.nongnu.org/mailman/listinfo/qemu-devel
>

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

[Jean-Michel POURE]

Le dimanche 20 Juin 2004 12:12, 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...

Can you tell us more about it Fabrice, I am interested:
- Host : GNU/Linux Debian SID with 2.6.6 kernel
- Guest: Fedora Core 2 -> very slow
- Guest: Debian SID with 2.6.6 kernel -> very fast
- Qemu: CVS head from 17/06/2004

Cheers,
Jean-Michel