Ok, so you saw the word fps and threw an answer before reading anything else?
I'll write the same .. AGAIN, please read it now ..
"If in cases where on other OS you'd get 100 fps or whatever, you get 30-60 on Linux, then in cases you'd get 30-60 on that other OS you'd get significantly less on Linux."
Hope you understood this part. Besides, it's not like like mos cards would give you 100 fps on Windows, probably just 30-60 there too. And when you have hardware that can fly, are you fine with being adequate or barely making it? Can you say for sure you'll get the SAME framerate, which is not always over the top, often just normal or even less then the 30-60 on the open drivers? No. Not in most cases(maybe there are exceptions of course, but they're still exceptions, when they're the rule we'll talk again about it.)
That's why they're looking for optimizations on compilation level and other things.
You sure you don't care for your movie's fps? Seen what can happen when you get less than the video? Oh, I've seen. And can(or could) happen with blobs too. Wouldn't keep my fingers crossed you'll watch any movie with no hiccups. Btw, CPU seems to be important too for my laptop, don't wanna burn it.
Yes, performance will keep getting better, but it's not that good now. Maybe if more people step up to help it can go faster.
**Btw, I take it that with games you take such stuff into account: Crysis, Diablo III, The Elder Scrolls VI: Skyrim, GTA IV, etc etc etc ..
Ya know, many people tend to like those ..
And might not have an easy time getting them to 100 fps, under Windows/closed drivers on common system, so would you even get 30 on open ones? I they're good enough on performance let's forget about improving it for now and work on all those other areas that require work, but I doubt it's that way. And I speak as a person who doesn't need my maximum performance. But then again, if I paid for some well performing hardware, why want to get sub par performance?
Btw, Linux most used OS in two years from now .. Too optimistic ... Wish you're right though!!