BFS vs. mainline scheduler benchmarks and measurements

Posted Sep 7, 2009 15:58 UTC (Mon) by mjg59 (subscriber, #23239)
In reply to: BFS vs. mainline scheduler benchmarks and measurements by ldarby
Parent article: BFS vs. mainline scheduler benchmarks and measurements

Flash works in RGB space, whereas mplayer has the luxury of not needing to composite UI on top of the video and so can just dump YUV data into the hardware scaling engine. That's where most of the performance difference comes from.

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BFS vs. mainline scheduler benchmarks and measurements

Posted Sep 7, 2009 20:11 UTC (Mon) by alankila (guest, #47141) [Link] (2 responses)

Linux with its texture-from-pixmap extension should be able to support RGB scaling via hardware, only I spent a few days last summer trying to get this feature to work---and after failing that, just getting some demos that should use this feature to work. That failed too. But: compiz works just fine, so the extension is probably okay. The X errors which I received were just so undebugable that I just gave up trying to figure out what is wrong.

Once Linux, too, can take RGB surface and display it on screen with hardware acceleration, things will indeed be better for us. But here's me wishing: it should be easy, not just "maybe works if you happen to have the right mixture of everything installed and moon's phase is just right".

It's awful how Linux slowly conditions one to inferior experience. I had a friend visiting and he was genuinely surprised when he saw that I could press the full-screen button on youtube and it actually worked. He failed to notice that at that time I was actually running Firefox within Windows... ;-(

From end-user point of view, this problem can't die fast enough.

BFS vs. mainline scheduler benchmarks and measurements

Posted Sep 8, 2009 11:58 UTC (Tue) by nye (subscriber, #51576) [Link] (1 responses)

> I had a friend visiting and he was genuinely surprised when he saw that I could press the full-screen button on youtube and it actually worked

I agree that performance isn't brilliant - in particular, the YouTube Flash applet becomes absurdly slow in full-screen when the controls are visible, though some other applets don't have that problem - but I'd be surprised if full-screen Flash video didn't work at all. In what way does it fail for you/him?

*My* problem with Flash is that Firefox appears to be aggressively single-threaded, and a few times a minute decides to peg the CPU for a second or so, so if I want to play Flash smoothly I have to use Opera - or Konqeror, or any non-Firefox browser really.

BFS vs. mainline scheduler benchmarks and measurements

Posted Sep 8, 2009 23:59 UTC (Tue) by alankila (guest, #47141) [Link]

Well, what I get is that the full-screen button flashes a full-screen video for a frame or two, and invariably falls back to windowed mode. I'm not sure if that is the symptom for him, though.

It could also be another problem: right now mouse button clicks within the flash applets don't seem to register -- I have to start video playback by pressing space because clicking with the mouse somehow doesn't seem to go through. Especially pressing the full-screen button does absolutely nothing right now. *sigh*