Virtual Environment (Ow, big words...)

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Which virtual machine emulator/environment do you use?

VMware
3
12%
Bochs
9
36%
Qemu
6
24%
The microsoft one (can't remember name)
3
12%
Other (please specify)
4
16%
 
Total votes: 25
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piranha
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Virtual Environment (Ow, big words...)

Post by piranha »

Which one do you use? Or like better?

Feel free to rant about them, or post why you use a certain one (in fact, please do so)...

I myself use VMware.


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frank
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Post by frank »

I generally use BOCHS because of the debugger and the console that I can output to. However I often test on Virtual PC 2007, VMWare and Qemu. For actually running an OS like Linux (not testing) I prefer Virtual PC. It seems to be the fastest.
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Post by Zacariaz »

i havent done much in virual machines, but of those i have tryed, vmware was the only one i got to work...
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Colonel Kernel
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Post by Colonel Kernel »

I used VMWare on my old XP box, but now that I have a Mac I use Parallels (VMWare Fusion was just taking too long to ship).
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Post by jerryleecooper »

I used bochs, but I found it wasn't runnig at correct speed, It was too slow or too fast. And my kernel was buggy but it worked correctly in bochs (? ).
So now I use Virtual PC, it's faster, but sometimes I get virtual machine internal errors. But right now my kernel seems correct and virtual pc does it honnor. :o
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Post by Alboin »

I usually use QEMU, because I like being able to do all the configuration at the command line. However, it doesn't compile with my newer GCC, so I'm stuck with Bochs....
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AndrewAPrice
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Post by AndrewAPrice »

I was using QEMU, but I've switched to InnoTek VirtualBox.

Why?
- I don't need the debugging features of QEMU and Bochs anymore since my OS's internal functions suffice.
- VirtualBox seems to be faster than QEMU and Bochs (I'm talking about Out-of-the-box performance).
- VirtualBox is easier to configure than QEMU and Bochs (adding new hardware is only a few clicks away).
- VirtualBox seems to have a lower memory footprint than the other larger emulators (VMware, Virtual PC) and therefore is faster than these when booting and saving/restoring snapeshots, etc.
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Post by bluecode »

I use all of them. But I prefer bochs, when it comes to debugging the kernel, so I voted for bochs. :)
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Pyrofan1
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Post by Pyrofan1 »

i don't use any
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Post by Combuster »

Bochs, QEmu, VirtualPC. The more platforms you test, the more chance of finding out about issues.
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Post by inflater »

Bochs for debugging, QEMU for "speedy testing" and real hardware for real testing. :P I do not use MS VPC for my kernel because it doesnt work right. :)

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Tyler
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Post by Tyler »

inflater wrote:Bochs for debugging, QEMU for "speedy testing" and real hardware for real testing. :P I do not use MS VPC for my kernel because it doesnt work right. :)

Regards
inflater
Why don't you find out what is wrong with your kernel then?
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Post by Candy »

Bochs for debugging, anything for testing. The only cases I've found that were a problem were things I didn't test in bochs, so I just need to fix my testing, not the code. The only thing that was actually wrong with the code (not just setup/test related) was writing MSRs my processor didn't get. I was intending to test it on others just now. On my laptop (p4) it works for the RM/PM hello world + i586 kernel and on my main box (p-d) it runs all three hello worlds (rm/pm/lm) and the i586 kernel. The other kernels don't work in bochs either so that's a good reason they wouldn't work.

Just don't use the bochs advantages when you code. Know what you're doing and don't assume anything you aren't sure about.
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Post by AJ »

Tyler wrote:
inflater wrote:Bochs for debugging, QEMU for "speedy testing" and real hardware for real testing. :P I do not use MS VPC for my kernel because it doesnt work right. :)

Regards
inflater
Why don't you find out what is wrong with your kernel then?
I use Bochs and VirtualBox. I also stopped using VPC2004 because it "doesn't work right". It mishandles V86 mode extensions (even when using a host processor which supports them) and doesn't like setting up a 'safe' TSS for handling double faults. When I had both of these problems, Googling revealed that many others had the same problems, so I guess it wasn't my kernel that was the issue.

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Tyler
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Post by Tyler »

AJ wrote:
Tyler wrote:
inflater wrote:Bochs for debugging, QEMU for "speedy testing" and real hardware for real testing. :P I do not use MS VPC for my kernel because it doesnt work right. :)

Regards
inflater
Why don't you find out what is wrong with your kernel then?
I use Bochs and VirtualBox. I also stopped using VPC2004 because it "doesn't work right". It mishandles V86 mode extensions (even when using a host processor which supports them) and doesn't like setting up a 'safe' TSS for handling double faults. When I had both of these problems, Googling revealed that many others had the same problems, so I guess it wasn't my kernel that was the issue.

Cheers,
Adam
Well that is fair enough, i have had problems with older version's of Bochs and QEMU, but instead of not using them, i simply upgrade. Virtual PC continues to be the most realistic (real hardware like) Virtual Machine.
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