It is apparently working well also for me.<br><br><div class="gmail_quote">2011/9/13 Clay Weber <span dir="ltr"><<a href="mailto:claydoh@midmaine.com">claydoh@midmaine.com</a>></span><br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<div><div></div><div class="h5">On Tuesday, September 13, 2011 02:02:01 PM Harald Sitter wrote:<br>
> On Tue, Sep 13, 2011 at 1:47 PM, Dan Chen <<a href="mailto:seven.steps@gmail.com">seven.steps@gmail.com</a>> wrote:<br>
> > On Sep 12, 2011 11:31 PM, "Clay Weber" <<a href="mailto:claydoh@midmaine.com">claydoh@midmaine.com</a>> wrote:<br>
> >> What sort of things should we be looking for, positive or negative?<br>
> ><br>
> > Ditto. I normally have several dozen app/windows open, and the<br>
> > performance hitches I noticed before seem resolved. It would be nice to<br>
> > know which parameters to test, however.<br>
><br>
> From Martin's top secret mail:<br>
> > During working for an optimization in 4.8 we noticed that we do deep<br>
> > non-const vector copies where a const at() operation was expected. This<br>
> > means that we have in each frame: 4x+5xy unneeded copy operations<br>
> > (x == number of loaded effects)<br>
> > (y == number of windows).<br>
><br>
> So on a stock kubuntu desktop we have something like 15 effects<br>
> activated, additionally say you have a browser, a music player and a<br>
> chat window (mind you, plasma is also a window ;)) that means per<br>
> frame you get 4*15+5*4=80 copies of effects, if you get 15 frames per<br>
> second (which would be mostly enough to perceive the desktop as<br>
> responsive) that means 15*80=1200 copies. You probably do not have 15<br>
> but >40 frames per second that means 3200 copies. Now I actually<br>
> forgot what I wanted to write about...<br>
> Ah right, so, if you turn on *all* kwin effects (or at least those<br>
> that load on your system) and open as many windows a possible, kwin<br>
> should not feel overly sluggish (movement of windows, resizing etc.).<br>
> Also all effects that worked with the old package should still work<br>
> with the new one.<br>
><br>
> <a href="http://blog.fishsoup.net/2011/06/13/benchmarking-compositor-" target="_blank">http://blog.fishsoup.net/2011/06/13/benchmarking-compositor-</a><br>
performance/<br>
</div></div>In that case, it is all working well then :D No sluggishness here.<br>
<div class="im">--<br>
Clay Weber<br>
<a href="http://kubuntuforums.net" target="_blank">http://kubuntuforums.net</a><br>
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<a href="http://emacdogsports.com" target="_blank">http://emacdogsports.com</a><br>
<br>
<br>
--<br>
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