renders crashing - running out of memory

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andromeda_girl
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renders crashing - running out of memory

#1

Post by andromeda_girl » Thu Feb 15, 2018 1:45 pm

has anybody experienced fusion 9 running out of memory when rendering?
it appears that it is not freeing up memory when it finishes rendering frames, and so eventually it just runs out.
i have done a search on this problem but did not find anything for it...
if this is a known issue with a fix i'd love to know what that is :D
:(

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Chad
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Re: renders crashing - running out of memory

#2

Post by Chad » Thu Feb 15, 2018 2:38 pm

Obvious questions, have you lowered the limit and raised the reserve?

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ChristopherNodal
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Re: renders crashing - running out of memory

#3

Post by ChristopherNodal » Thu Feb 15, 2018 2:55 pm

andromeda_girl wrote:
Thu Feb 15, 2018 1:45 pm
i have done a search on this problem but did not find anything for it...
Hi andromeda_girl,


I went for a look in the Bug Tracker and the third topic is Fusion memory leak at render time

Hope it helps.

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andromeda_girl
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Re: renders crashing - running out of memory

#4

Post by andromeda_girl » Thu Feb 15, 2018 2:58 pm

Chad wrote:
Thu Feb 15, 2018 2:38 pm
Obvious questions, have you lowered the limit and raised the reserve?
uncertain what this means to raise the reserve?
:)

as for not finding it in a search, 'memory leak' i guess was the way to search for it ;)

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Re: renders crashing - running out of memory

#5

Post by andromeda_girl » Thu Feb 15, 2018 3:03 pm

do you mean the 'leave at least' value when you say 'raise the reserve'?

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Chad
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Re: renders crashing - running out of memory

#6

Post by Chad » Thu Feb 15, 2018 3:43 pm

Yes, the default on that seems low to me, I usually run several times higher. Not in front of Fusion to check what that default is.

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andromeda_girl
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Re: renders crashing - running out of memory

#7

Post by andromeda_girl » Thu Feb 15, 2018 5:24 pm

default is 2046
well, i dropped my max to 65% and my 'reserve' to 4098 and it still dies on me.
it just does not appear to free up memory as it renders frames.
unless i 'babysit' the render, stop it when it gets high, reset the render range to the last frame rendered as the first, clear the cache, save and then restart the render, it always dies on me.
quite the ordeal to go through.

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Chad
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Re: renders crashing - running out of memory

#8

Post by Chad » Thu Feb 15, 2018 5:39 pm

But you'd never run a workstation with 4096 MB of RAM, right? I checked and I'm set to 20000. I can't imagine why you would want to allow Fusion to leave only 2046 MB free. Chrome eats that just checking my email. Resolve uses 4GB just on the spash screen.

The other thing might be happening is that rendering just causes more stuff to happen. Like Fusion might be somewhat crash prone when you aren't rendering, you just notice less. Like you might be doing roto and only updating one tool interactively, but when rendering you're updating many tools constantly.