| |||||||||||||
Let's step back a bitLet's step back a bitPosted Jun 4, 2009 20:29 UTC (Thu) by drag (subscriber, #31333)In reply to: Let's step back a bit by TomMD Parent article: Xen again
the VT and SVM cpu extensions are only needed for X86 platform because the X68 ISA design is such a huge pile of shit.
KVM works fine on other architectures (like PowerPC), so that is all a bit of a red herring.
For x86 systems that donnot have VT/SVM you can use Kqemu and get similar functionality and speed.
(Log in to post comments)
Let's step back a bit Posted Jun 9, 2009 2:11 UTC (Tue) by xyzzy (subscriber, #1984) [Link]
I migrated my Xen DomUs to kqemu VMs a year ago. I didn't rigourously benchmark but the performance drop was noticeable -- I went from being able to fill 100mbps, to not being able to fill even half of it. And this was with wget and apache and static files, so mostly an I/O performance issue.
Let's step back a bit Posted Jun 9, 2009 7:50 UTC (Tue) by paulj (subscriber, #341) [Link]
Kqemu is long unmaintained. The Qemu developers are discussing ripping it out. Kqemu guest-kernel-space is very buggy and nearly always unuseable. So any deployment of Kqemu will run guest kernel under emulation, which obviously leads to very poor performance for all applications except those which are near-completely userspace CPU bound.
|
|||||||||||||