[Qemu-devel] [PATCH v2 0/4] spice: improve vga mode performance

[Gerd Hoffmann <kraxel@redhat.com>]

  Hi,

This patch series makes spice be more clever on screen updates when in
vga mode (i.e. without qxl guest driver loaded or when using a non-qxl
vga card).  qemu keeps a copy of the screen with the content forwarded
to spice-server, then on updates it goes compare the guest screen with
the copy to figure what has really changed.

[ v2: fix two bugs so the series actually has the desired effect ]

cheers,
  Gerd

Gerd Hoffmann (4):
  spice: switch to queue for vga mode updates
  spice: split qemu_spice_create_update
  spice: add screen mirror
  spice: send updates only for changed screen content

 hw/qxl.c           |    6 +-
 ui/spice-display.c |  136 ++++++++++++++++++++++++++++++++++++++++------------
 ui/spice-display.h |    4 +-
 3 files changed, 111 insertions(+), 35 deletions(-)