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Re: [Qemu-devel] [Bug 1458121] Re: USB2 is five times slower than native
Re: [Qemu-devel] [Bug 1458121] Re: USB2 is five times slower than native on qemu-kvm
Sat, 23 May 2015 19:21:20 -0000
On 05/23/2015 01:08 AM, Michael Tokarev wrote:
> That version was a pre-alfa version of kvm support in qemu, is insanely
> outdated, is heavily patched by redhat. I don't even think USB2 was
> supported by that version. Please try on a current version of qemu and
> kernel and reopen if the problem persist there.
> ** Changed in: qemu
> Status: New => Invalid
Thank you for your consideration. I had a feeling.
I asked Red Hat if they would have a whack at it.
They are suppose to support EL6 till 2020, but they
really don't. So maybe.
I am trying to upgrade to EL7, but the lack of Wine32
support is a deal killer.
Just out of curiosity, does the USB support work any better
in the new version of qemu? Is it "on the fly" or do you
still have to map each drive in?
Computers are like air conditioners.
They malfunction when you open windows
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USB2 is five times slower than native on qemu-kvm
Status in QEMU:
Spice told me to report this over here.
Scientific Linux 6.6
$ uname -r
$ cat /etc/redhat-release
Scientific Linux release 6.6 (Carbon)
$ rpm -qa qemu\*
I have a bootable USB2 FC21 flash drive. I can boot my machine directly from
it or run it as a virtual machine through KVM.
Problem: it is about 5 times slower through KVM. (Really, I am not
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