Buffer actor running out of ram

Reply to Buffer actor running out of ram on Sun, 25 Mar 2018 08:23:48 GMT

dbini — Sun, 25 Mar 2018 08:23:48 GMT

i've noticed this kind of behaviour recently, using 3 buffers of 120 frames each. after a rehearsal session of loading and clearing and resetting quite a few times, I got a message that i've run out of RAM. (the message suggests I should manually allocate more RAM to Isadora, but OSX handles all of the RAM automatically these days, as far as i know)

Reply to Buffer actor running out of ram on Fri, 23 Mar 2018 08:42:47 GMT

Skulpture — Fri, 23 Mar 2018 08:42:47 GMT

@mark said:

@skulpture said:
Might have to be a buffer, into a buffer, into a buffer job then :)
Still won't work. You are limited to 4GB for the application, and the application itself naturally uses some of the 4GB. That's all you can have, regardless of how many buffer actors you use.
As Ryan said, the 64-bit Isadora v3 this fall will open this up to far larger delays with HD video.
Best Wishes,
Mark

Ah - Interesting. I thought the buffer may link or assign itself to a process ID (or similar). ok not to worry.

Reply to Buffer actor running out of ram on Thu, 22 Mar 2018 17:41:40 GMT

mark — Thu, 22 Mar 2018 17:41:40 GMT

@skulpture said:

Might have to be a buffer, into a buffer, into a buffer job then :)

Still won't work. You are limited to 4GB for the application, and the application itself naturally uses some of the 4GB. That's all you can have, regardless of how many buffer actors you use.

As Ryan said, the 64-bit Isadora v3 this fall will open this up to far larger delays with HD video.

Best Wishes,
Mark

Reply to Buffer actor running out of ram on Thu, 22 Mar 2018 14:13:26 GMT

Skulpture — Thu, 22 Mar 2018 14:13:26 GMT

@dusx We thought as much.

Might have to be a buffer, into a buffer, into a buffer job then :)

Reply to Buffer actor running out of ram on Thu, 22 Mar 2018 14:07:09 GMT

DusX — Thu, 22 Mar 2018 14:07:09 GMT

I suspect this is a limitation of the 32bit processes running the video. The upcoming 64bit version of Isadora should address this but I'm afraid I dont think anything can be done until then.

Reply to Buffer actor running out of ram on Thu, 22 Mar 2018 14:04:01 GMT

Skulpture — Thu, 22 Mar 2018 14:04:01 GMT

@mark @Monty @DusX I have been looking at this with @EdJoynson it seems that the buffer actor is capped or limited?

We want to be be able to buffer a 20-30 second HD video at 60fps. We are using a server with 64gig of RAM.