<br><div><span class="gmail_quote">On 8/28/07, <b class="gmail_sendername">Lukas Hejtmanek</b> <<a href="mailto:xhejtman@ics.muni.cz">xhejtman@ics.muni.cz</a>> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
Hello,<br><br>I was playing with some HD streaming and I noticed that XV overlays highly<br>utilize gettimeofday (in particular nvidia closed source driver, but the open<br>source one is even worse) resulting in up to 50% CPU usage spent in kernel in
<br>clock_gettime and context switches.<br><br>Is there any possible solution for this? I guess that it is just stupid driver<br>architecture that iterates over gettimeofday instead of waiting for IRQ.</blockquote><div><br>
Hello,<br><br>You may want to test the nouveau driver ( <a href="http://nouveau.freedesktop.org/">http://nouveau.freedesktop.org/</a> ). We have an improved Xv layer in there.<br><br>Stephane<br></div></div><br>