Is it expected that spice, with host/guest/client on a single pretty high end system, could play videos decently with little (0-5%) increase in GPU usage, but that the marching ants animation in Excel 2016 would spike to 80-100% GPU usage and lags the entire system quite badly? (Using radeontop to see GPU usage.) Specifically, it's "Graphics pipe", "Texture Addresser", "Shader Export", "Shader Interpolator", "Scan Converter", "Depth Block", and "Color Block". (I'll note once and a while, for reasons unknown, it gets into a state where it only spikes to 50-55% usage, but most often it seems to be in the 80-100% range.) If I should open a bug for this, please let me know for which package I should open it on. Host: * Arch Linux, near latest releases for everything. linux 4.19.12, mesa 18.3.1, qemu 3.1.0, etc. * Dual 2.9GHz Xeons (32 logical cores) * 64GB RAM * Radeon RX Vega 64 (current top of the line Radeon) Guest: * QEMU Windows 7 * 8 logical cores (2s/4c/1t) * 4GB RAM * QXL 128MB VRAM * QEMU guest agent * SPICE Guest Tools Holding the down key to repeatedly move a cell lower in Excel, even without causing the screen to scroll, causes a spike to 50-100% GPU usage as well. This isn't as horrible, as it only happens when I'm causing it, unlike the marching ants animation which happens continually until I press ESC in Excel, or replace the Windows clipboard with something else. (So, even if the client is on screen, but I'm not actively working in it.) If the marching ants is spiking GPU usage and I minimize the spice client window, the GPU goes back to normal. Running Photoshop's marching ants animation causes no significant increase in GPU usage, granted its animation is different. Even If I move part of an image around the screen wildly with my mouse in Photoshop, the GPU at worst gets to 20%. If using a remote desktop connection rather than spice, holding the down key in Excel causes a spike to 50% GPU usage but not up to 100% like through spice. Even using best RDP quality to bring back Aero effects, excel shows a dashed border around a copied cell rather than an animation, so the marching ants effect isn't comparable. Am I just seeing how bad not being able to have 2D acceleration in a Windows guest is? That it can even peg a Vega 64 at 100% GPU usage? Maybe for some reason Excel is more 2D intensive than wildly moving part of an image in Photoshop? (Like maybe Excel is doing as many "frames" per second as it can, but Photoshop is limiting?) Tagged Victor Toso, in case this has any relationship to the clipboard bug at https://gitlab.freedesktop.org/spice/win32/vd_agent/issues/6 I only started noticing it once the clipboard bug was fixed for me, as before then the marching ants animation would go away pretty quickly due to that bug. I am running spice/spice-gtk/spice-protocol git versions with the patch for that bug, however I downgraded to released versions spice 0.14.0, spice-gtk 0.35, and spice-protocol 0.12.14, to make sure this GPU usage isn't related to unreleased commits. I might see if I can just get the marching ants animation disabled, but wanted to start here first in case it's a bug that could help performance elsewhere as well. _______________________________________________ Spice-devel mailing list Spice-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/spice-devel