Inconsistant render times

[Gentle Fury]

Ok, heres the issue. For some reason when I render per frame times are just weirdly inconsistent. If i render in command line it will go really fast for a couple hundred frames (with the occasional frame going really slow) then start going really slow. If I then cancel the render and resume where i left off it starts the same process....really fast then ridiculously slow. Now here is the weird interesting part. If i render inside nuke and a frame is going really slow and i hit f12 to clear memory it finishes the frame. If it is taking 10 secs per frame to render, but I sit there and hit f12 at every frame it takes about 1 sec per frame. Now, what im wondering is, short of creating a macro to press f12 every second is there a way to fix this error....seems like a memory leak.

[Diogo Girondi]

Which Nuke version are you running?

[Gentle Fury]

4.7v3

[Diogo Girondi]

I had some buffer issues with v3 in Windows. Same thing doesn't happen in Linux.

Now I'm running 4.7v4 and there will be 4.7v5 that will correct a viewer issue.

Get in contact with The Foundry and get you update case you in a maintenance contract.

[beaker]

Most programs have this issue with flushing memory(MR, Maya, Prman, Shake, etc...). That is why you set most render managers to submit in 5-10 frame batches.

If your comandline rendering you can just make a loop.

[Gentle Fury]

thats what i usually do, but its a 4400 frame sequence and I just haven't gotten around to splitting it up......too many lines. Just was wondering if there was a better way of doing it.

[throb]

use the free version of deadline (works on <=2 machines) and submit your job to yourself and another machine. it can break up the rendering easily for u

http://www.franticfilms.com/software/products/deadline/download/

rob

[Gentle Fury]

use the free version of deadline (works on <=2 machines) and submit your job to yourself and another machine. it can break up the rendering easily for u

http://www.franticfilms.com/software/products/deadline/download/

rob

Nice! Thanks!

I'm still waiting on them to finally get the render farm they've been promising.

On a weirdly interesting note, I accidentally found a fix. For some reason if I open a viewer window before rendering it goes smokin fast. I would always shut the viewer thinking it would take up resources and slow it down....but I guess nuke works with buffers better when a viewer is open, I guess to allow viewing.

I started rendering and it was going super slow....I cancelled it and was looking to see if i could find the culprit (maybe a rogue blur all node or a section not cropped)...everything was fine so I settled myself in for a 2 hour render.

I executed the render and accidentally left open the viewer.....came back a few mins later to see it saying 15 mins remaining and just hammering thru the frames. Weird right??