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  • Hey all, just changed over the backend after 15 years I figured time to give it a bit of an update, its probably gonna be a bit weird for most of you and i am sure there is a few bugs to work out but it should kinda work the same as before... hopefully :)

SPEED and REDCINE

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LEON

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Hello,
has anyone some idea about the improvement in speed when using REDCINE and exporting to HD QT codecs
with the use of a quad core or an 8 core MAC ?
 
The more the better, basically. At the moment I'm working on some multi-threading optimizations. Even if we're not using all CPU's fully at the moment, that will only get better over the coming months!
 
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Redcode Files Transcode At Best Speed

Redcode Files Transcode At Best Speed

Thank you for this clear reply.
Now, would you know, in case of use of the Macintel with 8 cores,
if there would be any speed improvement in using 16 Gigas of ram rather than 8 Gigas only ?
( when transferring original Redcode files into Quicktime)
The price difference is huge !
But with 8 cores maybe it seems adequate to use 16 Gigas,
what do you think ?
I know I'll have the camera (609) only at beginning of January but I rather plan things, I mean postproduction, sooner.
Thank you for your help.
Jean-Luc Leon
 
Keep in mind that no 32-bit application (which all our apps and QuickTime [for now] are) can only use 2 - 3 GB of virtual memory. So getting more than say 4 GB is only useful if you plan to run memory hungry applications side by side.

The decode process will use a bit more memory the longer the movie is, but I would be surprised if this will ever go over 500 MB.

However, a program like redcine tries to cache as much frames in memory (until it hits the 2 - 3 GB limit).

Say you want to run Final Cut Pro, Photoshop and REDCINE at the same time it might be good to get 8 GB, but it will probably work fine with 4 as well.

The amount of processors tends to not have much in common with how much memory you have.

This all changes once the world really switches over to 64-bit.....
 
isn't leopard a true 64 bit operating system?
 
There are a ton of "true" 64-bit Operating Systems already out (for years). Including three different versions of 64-bit Windows and various Unix flavors.

That doesn't really mean much however. You need 64-bit driver support *and* 64-bit applications to take advantage of such an OS. Otherwise the apps are still limited to 2 - 3 GB of memory (per application). But you can run more of those side by side since the OS can have much more memory available...
 
Rob Lohman said:
The more the better, basically. At the moment I'm working on some multi-threading optimizations. Even if we're not using all CPU's fully at the moment, that will only get better over the coming months!
Click to expand...

Since frame processing is a very discreet task couldn't we just run two copies of REDCine at one?

Speaking of which... are you ready to comment on Command line features?
 
im.thatoneguy said:
Since frame processing is a very discreet task couldn't we just run two copies of REDCine at one?

Speaking of which... are you ready to comment on Command line features?
Click to expand...

http://www.barefeats.com/octopro1.html#ae

"EIGHT-CORE -- A DIFFERENT WITH AFTER EFFECTS CS3
The 8-core Mac Pro showed more muscle when we ran After Effects CS3 beta. After Effects CS3 has an item in Preferences called "Multiprocessing." It has a check box that enables "render multiple frames simultaneously." When checked, AE spawned a process for each core called "aeselflink" and grabbed 1.6GB of real memory per process. It was like creating a "render farm" within one Mac."


That's how to put those 16 gigs of ram to work.
 
One of the other big things is memory bandwidth. We are pushing around large amounts of memory which uses up memory bandwidth fast.
 
Rob Lohman said:
One of the other big things is memory bandwidth. We are pushing around large amounts of memory which uses up memory bandwidth fast.
Click to expand...

Dear Rob Lohman,
sorry,
I understood your previous answers but forgive me, this one leaves me with ????
What does it mean in terms of equipment I should prefer ?
Please do not forget I am just a filmmaker, not a computer expert !
 
jimk: why?

leon: if you get a modern computer you should be pretty good on that end, that remark was more for the people who build their own systems
 
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