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Activity Forums Adobe After Effects Processor utilization

  • Processor utilization

    Posted by Tim Kolb on December 7, 2007 at 2:27 pm

    Hi all…

    I’m using AE CS3 on a brand new BOXX-built 7500 series, dual-dual core Opteron…4 Gigs RAM…XP Pro SP2, etc, etc

    I’ve been running with the Task Manager-performance tab open to track how processors are being used and how gargantuan the page file gets as I tweak various memory and cache settings…

    I had a weird one today though…I did a render on a comp and suddenly all 4 cores were running at nearly 100% all the way through and the render went very fast. I made some small correction like an opacity fade up that I’d overlooked and went to re-render…and I’m back to pretty lack luster multithreading again.

    I want to get back to my happy place… 🙂

    Anybody run into something similar?

    TIA

    TimK,
    Director, Consultant
    Kolb Productions,

    Creative Cow Host,
    Author/Trainer
    http://www.focalpress.com
    http://www.classondemand.net

    Darby Edelen replied 18 years, 5 months ago 2 Members · 2 Replies
  • 2 Replies
  • Tim Kolb

    December 8, 2007 at 2:45 pm

    Nobody has any ideas on this one?

    I just did a fresh restart before rendering and that seemed to get the system back in the groove. I would have to assume that the most likely issue must be RAM fragmentation…?

    Is anybody else seeing this much RAM fragmentation in CS3?

    Other ideas?

    TimK,
    Director, Consultant
    Kolb Productions,

    Creative Cow Host,
    Author/Trainer
    http://www.focalpress.com
    http://www.classondemand.net

  • Darby Edelen

    December 8, 2007 at 11:32 pm

    [Tim Kolb] “I’m using AE CS3 on a brand new BOXX-built 7500 series, dual-dual core Opteron…4 Gigs RAM…XP Pro SP2, etc, etc”

    It might have something to do with your ‘render multiple frames simultaneously’ and ‘memory & cache’ settings. If you have 4GB of RAM and 4 processors to work with, you should be able to set your RAM cache to use around 1GB (you should probably use a little less to leave some RAM for your system and avoid memory related issues) and use all 4 processors to render multiple frames simultaneously.

    Note that it takes some time when you start a render to start up the additional instances of AE’s render engine, but the render should move quicker after this initial ~20 second lag.

    If you don’t have the ‘render multiple frames simultaneously’ option enabled then AE can still use multiple cores/processors to render within one frame, but AE will not be able to use as much of the RAM as it could with this option enabled.

    Darby Edelen
    Designer
    Left Coast Digital
    Santa Cruz, CA

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