Subscribtion

[Puja Gupta]

subscribe kvm
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USB Performance

[Erik Rull]

Hi all,

has anyone benchmarked the USB performance within a KVM guest.

I did with KVM 77 and Windows XP SP3 (host is core2duo with usb1.1 / 
reduced usb 2.0 because of bluescreens in windows):

64 KByte / sec

It seems to be a 64 Byte packet of USB communication each millisecond - 
thats what I got out, when I entered some debug stuff into the driver.


Anyone that got a better performance?
If yes, how?

Best regards,

Erik
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Console messages when launching a VM

[Daniel Bareiro]

Hi all!

I have a host in which I'm using KVM-88 with kernel 2.6.30.3 where I am
observing continuously the following message on console (not on ssh)
from the moment which I launch the virtual machines:


KVM_APIC_READ: read reserved register b0


When doing shutdown of the VM the messages no longer are displayed.
Which can be the cause? Is there some way to solve this problem?

Thanks in advance for your reply.

Regards,
Daniel
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[ kvm-Bugs-2829519 ] extboot.bin is not built

[SourceForge.net]

Bugs item #2829519, was opened at 2009-07-30 11:13
Message generated for change (Comment added) made by xming
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detailatid=893831aid=2829519group_id=180599

Please note that this message will contain a full copy of the comment thread,
including the initial issue submission, for this request,
not just the latest update.
Category: qemu
Group: None
Status: Pending
Resolution: Fixed
Priority: 5
Private: No
Submitted By: Dominik Klein (dominikklein)
Assigned to: Nobody/Anonymous (nobody)
Summary: extboot.bin is not built

Initial Comment:
I am on openSuSE 11.1 x86_64 on a Dell machine with an Intel E5440 CPU.

I try to compile qemu 0.10.5 using
./configure --prefix=/usr
make
make install

Everything looks good but then I find that extboot.bin is neither (tried to) 
build nor installed.

Copying a version from an older qemu installation worked as suggested by a 
colleague, but I guess that's not the way it is meant to be.

I attached a file with the output of configure, make and make install. If you 
need anything else, just let me know or contact me on IRC, Nickname kleind in 
#kvm on freenode

--

Comment By: xming (xming)
Date: 2009-08-22 17:38

Message:
extboot.bin is not built with qemu-kvm-0.11.0-rc1, can this be fixed for
the next rc?

--

Comment By: Avi Kivity (avik)
Date: 2009-08-10 13:55

Message:
Fixed in 0.10.6

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https://sourceforge.net/tracker/?func=detailatid=893831aid=2829519group_id=180599
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