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AVCHD 44Mbs – Performance problems when playback backwards and “RAM abuse” with Macbook Pro
I am running Premiere Pro CS5 with a 2011 Macbook Pro, 2.3GHZ and I updated to 8GB. The Peformance is generally not bad, considering that I am editing AVCHD at 44Mbs. But:
1) When I playback backwards (“j-key”) the image will freeze after 3 secs, same when going backwards with left arrow, frame by frame
2) After a while editing, the computer uses (abuses) nearly all my 8GB of RAM. The image will freeze and only very unflowy playback is possible
I tried already without success:
– reduce the playback quality even to 1/4
– limit the RAM distribution to 6GB for Premiere (rest for whatever)Anybody has ideas how to change that?
Thanks so much
Cheers -
7 Replies
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Better get that macpro to an intervention/abuse program! 😉
have you tried flushing the preferences and see how it goes?
hold down option while launching premiere to do that (i think)
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Thank you Chris, I don’t get you, could you explain that a bit more detailed? Thank you so much
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“trashing the preferences” may fix odd issues in premiere, possibly the problem your having.
to do it, launch premiere while holding down the shift key.
see if that helps.
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Thanks Chris, I tried it, the right key to hold was “option”, it trashed all my preferencies, but didn’t resolve any issues described above
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You don’t say whether you’ve installed the bug-fix updates for Premiere Pro CS5. They fix a lot of problems.
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Todd Kopriva, Adobe Systems Incorporated
Technical Support for professional video software
After Effects Help & Support
Premiere Pro Help & Support
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Thanks Todd, I also have the CS 5.5 version, but for some reason the CS 5 works better for me: Like “jump to next/previous cut” (Fn+arrow up/down) is slow for me in CS 5.5, its not immediate, it takes 1,2 or even 3 seconds. Another issue is, that I have to render a normal crossdisolve, if not it wouldn’t playback it. So I went back to use CS 5, where these things work better but I still have the performance issues described above.
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Thanks Todd, I also have the CS 5.5 version, but for some reason the CS 5 works better for me: Like “jump to next/previous cut” (Fn+arrow up/down) is slow for me in CS 5.5, its not immediate, it takes 1,2 or even 3 seconds. Another issue is, that I have to render a normal crossdisolve, if not it wouldn’t playback. So I went back to use CS 5, where I still have the performance issues described above.
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