Decreased performance with 8.2 install

[Margus Voll]

For me it seems more os issue rather than Resolve. I have seen this pram problem on imacs with Lion. Some stuff did not work out the box after update to Lion. Can not say that it is not affecting other stuff.
But ok i do not have very dedicated info how this pram stuff works in detail.

Good test would be to use demo footage from Resolve image and test with these. Then other people could also take part of your testing.

I have 470/4000 Lion machine here and have not done any pram stuff yet.
Interesting idea to test out.

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Margus

https://iconstudios.eu

[Rene Hazekamp]

Admittedly you are right about the accuracy of my little tests, but the projects i tested were similar enough.
and should not give these different results. ( in an ideal world)

Strange as well was that zapping the pram effected the real time playback in the osx 10.7.3 setup, but not in the 10.6.8 setup.

By the way a browser with Flash running can also seriously effect real time playback ( like 8 to 10 nodes in my setup.)

Rene Hazekamp

Hope it helps someone with his playback voodoo

[Margus Voll]

Flash in back is big no no.

Back in the day when i did some massive flash stuff it was really good to see
how flash will burn hole in your cpu instantly.

Jobs rand about flash and ipad was not from nowhere.

Good test is only machine running test target soft.

—

Margus

https://iconstudios.eu

[Rene Hazekamp]

Margus, you are right about the big nono and test setups and so

I only mentioned it because it surprises me again and again, that background processes that in itself aren’t processor intensive can have a big impact on performance. -It was not that the browser or flash used 200 cuda cores to render (or half the cpu cycles). Still it slowed playback down as if it was using all this compute.

So maybe there are background and root processes that have a similar impact and if possible could better be shut down. To name a few non vital ones like airport, bluetooth, clock, the dock. ? etc etc. (watch the activity monitor when you have a break and you are doing absolutely nothing).

And maybe there are ways to optimize the system. (o yeah Linux of course)

René Hazekamp