<div dir="ltr"> <div class="gmail_extra"> <div class="gmail_quote">2013/7/2 Yonit Halperin <<a href="mailto:yhalperi@redhat.com" target="_blank">yhalperi@redhat.com</a>> <blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex"> <div class="im">On 07/02/2013 10:22 AM, Matilde Yanez wrote: </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex"> Hi, thanks for answers. 2013/7/2 Yonit Halperin <<a href="mailto:yhalperi@redhat.com" target="_blank">yhalperi@redhat.com</a> <mailto:<a href="mailto:yhalperi@redhat.com" target="_blank">yhalperi@redhat.com</a>>><div class="im"> Hi, On 07/01/2013 04:27 AM, Matilde Yanez wrote: Hello, I need some information about video detection, on VM. When I am on web pages, or documents, with images the VM seems to detect video and start the mjpeg_encoder process. Thus, the display is slows down. What vm are you using? We encountered such behaviour with gnome-shell, due to high frequency updates of regions over the primary surface. On CentOs and Windows VMs, indeed with high frequency updates of regions it considers that is video. Such as large Excel documents or web page with many images. Adding log I can see that spice server starts stream, and does the same treatment as video. </div></blockquote> Have you used the default setting of streaming-video (streaming-video=filter), or did you use streaming-video=on? Can you send me an example document and the Microsoft Office version you are using?</blockquote><div> </div> <div style>Using the default setting of streaming-video, scroling on "<a href="http://www.lemonde.fr/">http://www.lemonde.fr/</a>" for exemple.</div><div style>The Microsoft version is 14.0.4730.1010 (Office Professional Plus 2010).</div> <blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex"> </blockquote><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex"> <div class="im"> <blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex"> With argument streaming-video=off, the CPU consomation goes up. This is unexpected. On which guest scenarios? When I play a movie, with default "streaming-video" arguments, on windows VM, I am around 60% of CPU consomation of VM's qemu process ("top" command), and with "streaming-video=off" I am around 120%. Due to all images that are send to refresh client display? </blockquote></div> Ok, it is expected for movie playback. I thought you meant that it happens for the document browsing. <blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex"> Increasing the value of "RED_STREAM_FRAMES_START___CONDITION",<div class="im"> does not launch the video detection on these documents and keep fluidity on videos and documents How can i make difference between real video, and documents with images? I'm afraid there is no simple answer for this (1) Why does the driver send frequent updates? Does the rectangles that are being updated really change? Can it be prevented on the driver side? (2) If the area that is being refreshed doesn't change much, we can apply a quick comparison of sampled regions of 2 successive "frames", and if most of the pixels stay the same, we won't consider those "frames" as part of a video stream. (for such scenarios we would also like to improve and employ the GLZ encoding, or change our caching mechanism, to be applied on slices of bitmaps) I think I will investigate on the 2nd point. On what part of the spice-server code can i make changes? Code that is related to video streams is located in red_worker.c, in routines with "stream|upgrade" in their names. Thanks, Matilde. Regards, Yonit. Matilde. </div> _________________________________________________ Spice-devel mailing list Spice-devel@lists.freedesktop.__org <mailto:<a href="mailto:Spice-devel@lists.freedesktop.org" target="_blank">Spice-devel@lists.freedesktop.org</a>> <a href="http://lists.freedesktop.org/__mailman/listinfo/spice-devel" target="_blank">http://lists.freedesktop.org/__mailman/listinfo/spice-devel</a> <<a href="http://lists.freedesktop.org/mailman/listinfo/spice-devel" target="_blank">http://lists.freedesktop.org/mailman/listinfo/spice-devel</a>> </blockquote> </blockquote></div> </div></div>