On Thursday 18 December 2008, Jun Koi wrote: > On Thu, Dec 18, 2008 at 5:44 PM, Frank Mehnert <frank.mehn...@sun.com> wrote: > > Jun, > > > > On Thursday 18 December 2008, Jun Koi wrote: > >> I am wondering why VB doesnt use the original video devices from QEMU > >> (cirrus, vmware, vga), but it has its own PCI video device? What are > >> the differences with QEMU video devices? > > > > Our VGA device is based on the Qemu code but we improved the performance. > > In contrast to Qemu, VirtualBox knows a so-called 'raw mode', that is, > > as many code as possible is executed in the guest context. Even parts of > > the device emulation (including VGA). > > Interesting! How much is that faster than the original QEMU device?
Much faster :) > Do you have any number? No. Seriously: Another reason is that we had to adapt the code to our needs. Kind regards, Frank -- Dr.-Ing. Frank Mehnert Sun Microsystems http://www.sun.com/
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