• DaVinci Resolve

  Resolve only using about 4gb of RAM

  Posted by Jon Wright on September 26, 2012 at 9:51 am

  Hi there,

  Just done some upgrades on our system here, moved from a 5770 to a GTX 570 (for both GPU and GUI at the moment). I notice that in both R9 and 9.0.1 my system only seems to be using around 4.6gb of RAM. Tried it in a variety of tasks, decoding/rendering raw arri files, decoding/rendering epic files, pro res 4444 grading/rendering, rendering to MXFs etc but activity monitor never shows any usage above 5 gig.

  I realise that a number of these processes don’t rely on the ram and are more GPU dependant, I just thought it was strange that the minimum requirement is 8gb and mine doesn’t seem to be getting close to using that.

  It’s the latest model of mac pro, 10.7.3, 17gb of RAM (strange number I know but there was a spare gig floating around), GTX 570, latest cuda driver, R9.0.1.

  Any thoughts? Could it just be other limitations of the system not allowing the RAM to kick in?

  Thanks,

  Andi Winter replied 13 years, 10 months ago 3 Members · 3 Replies
• 3 Replies

• 

  Jostein Svalheim

  September 26, 2012 at 12:30 pm

  If you ordered the computer with 16gigs of ram, i would think they made sure you had a 64bit operating system. If the operating system is 32bit, it can only effectively use around 4 gigs of ram. 64bits have virtually no limit.
• 

  Jon Wright

  September 26, 2012 at 12:38 pm

  Operating system is definitely booting into 64bit mode, marked as ‘yes’ under system profiler.

  Edit: Also resolve 9 wouldn’t open unless the operating system was 64 bit.

  Jon
• 

  Andi Winter

  September 27, 2012 at 11:09 am

  mine uses right now 9gb of ram on rendering a red short…

  osx 10.6.7 resolve 9.0

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