# Eats way too much RAM
**URL:** https://forum.highend3d.com/t/eats-way-too-much-ram/8596
**Category:** Compositing
**Tags:** digital-fusion
**Created:** [February 28, 2001, 6:54pm UTC](https://forum.highend3d.com/t/eats-way-too-much-ram/8596 "2001-02-28T18:54:27Z")
**Posts on this page:** 7
**Page:** 1
### Author:  [@stengah](https://forum.highend3d.com/u/stengah)
#### Post date: [February 28, 2001, 6:54pm UTC](https://forum.highend3d.com/t/eats-way-too-much-ram/8596/1 "2001-02-28T18:54:27Z")
Why is it that Fusion eats sooo much ram when it renders? is there a way around this? It's looking like I'll need 3 gigs of ram to render out something that's 7 mins long. WTF? I'd like to do this without eating too much virtual memory. Any help would be much appreciated.
###### Frodo
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### Author:  [@catalin-niculescu](https://forum.highend3d.com/u/catalin-niculescu)
#### Post date: [January 28, 2002, 12:38pm UTC](https://forum.highend3d.com/t/eats-way-too-much-ram/8596/2 "2002-01-28T12:38:09Z")
I'm having the same problem.
Could anyone plz help us?...
thx
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### Author:  [@grejotte](https://forum.highend3d.com/u/grejotte)
#### Post date: [February 5, 2002, 9:47pm UTC](https://forum.highend3d.com/t/eats-way-too-much-ram/8596/3 "2002-02-05T21:47:14Z")
You have alot of control to keep ram usage down to an exceptable level. We work with very high res frames here (3200x3200) and multiple layers can eat up ram pretty quickly. Here's the memory settings we use. If you look under file-\>preferences-\>memory there's a section for render at the bottom. Make sure it's only rendering one frame at a time. And uncheck the rest of the boxes other than cache static tools. Also make sure that your network rendering nodes have override flow settings unchecked. Hope this helps.
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Dave
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### Author:  [@catalin-niculescu](https://forum.highend3d.com/u/catalin-niculescu)
#### Post date: [March 13, 2002, 2:44pm UTC](https://forum.highend3d.com/t/eats-way-too-much-ram/8596/4 "2002-03-13T14:44:45Z")
Thanx Dave
I'll give it a try right away
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### Author:  [@grejotte](https://forum.highend3d.com/u/grejotte)
#### Post date: [March 13, 2002, 6:05pm UTC](https://forum.highend3d.com/t/eats-way-too-much-ram/8596/5 "2002-03-13T18:05:25Z")
If that still eats too much ram change the cache static tools to just cache static loaders. If all else fails turning off all automatic caching and manual setting the force cache mode on nodes is the way to have full control of things. This is also helpful if you have a mask that is used on 2 different nodes too keep it's part of the flow from being recalculated each time it's called if you force cache it will only do it once.
--
Dave
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### Author:  [@hander](https://forum.highend3d.com/u/hander)
#### Post date: [June 27, 2006, 12:03pm UTC](https://forum.highend3d.com/t/eats-way-too-much-ram/8596/6 "2006-06-27T12:03:37Z")
Also Frodo,
1. By minimazing actual DF window - will safe lots of memory
2. Don't preview preview it while RENDERING - saves RAM too
Set MEMORY CACHE about 85%, check "Multiple Frames" about 4 you should be fine.
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### Author:  [@ratster](https://forum.highend3d.com/u/ratster)
#### Post date: [September 25, 2009, 4:19pm UTC](https://forum.highend3d.com/t/eats-way-too-much-ram/8596/7 "2009-09-25T16:19:20Z")