On 04/06/12 15:54, Hans de Goede wrote: > Hi Gerd, > > While cherry picking some spice patches into my own qemu-kvm-1.0 branch, > so that we can add them to Fedora-17 I noticed a significant slowdown > after I was done cherry picking. Investigation has shown your > "qxl: add optinal 64bit vram bar" patch to be the culprit. > > I noticed this using an old Fedora-14 32 bits vm with an xorg-x11-drv-qxl > patched to use the async methods. > > If I scroll through the gnome applications menu with the mouse with > plain qemu-kvm-1.0 all is fine, but once I add your: > "qxl: add optinal 64bit vram bar" the updating of the display > becomes noticably slower, the blue bar highlighting the selected > menu entry becomes lagged compared to the mouse cursor.
Avi? This looks like a memory aliasing issue. Old state: vram bar, backed by memory New state: vram bar, 64bit, backed by memory, might not be mapped. vram bar, 32bit, alias for the first part of the 64bit bar. Full patch: http://git.qemu.org/?p=qemu.git;a=commitdiff;h=6f2b175a090f367c3aab2226c4741b439671307a Any hints? cheers, Gerd _______________________________________________ Spice-devel mailing list Spice-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/spice-devel
