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Vidvox / hap-qt-codec

A QuickTime codec for Hap video
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Render times slow on 12 core vs 6 core mac pro #37

Closed pbreisch closed 5 years ago

pbreisch commented 7 years ago

I did a quick experiment on my last job with rendering on different machines.

Project specs: 2245x1124 Hap9Alpha rendered out of After Effects We are requested to deliver Hap9 by our D3 operator, moving up to a newer build of HAP is not an option.

I rendered the exact same project from the same drives and experienced the following results:

6 Core Mac Pro/32GB RAM/D700 - 4 Min 55 Sec 12 Core Mac Pro/32 GB RAM/D700 - 34 Min 12 Sec iMac 3.4i7/16GB RAM/AMD Radeon HD 6970M 1024 MB - 31min 31Sec

What I saw during the render was the processor usage varied greatly between the machines. The 6 core was using 90% of all available processors at the same time while the imac and the 12 core was splitting the load up from one processor to another. Is this a known issue or limitation of the codec?

I've attached pics of the imac and 6 core render times. These are direct compariosons, same files, same hard drives, etc. I didn't snap a shot of the 12 core but it was very similar to the imac.

Thanks.

img_2706 img_2707

bangnoise commented 7 years ago

This is potentially an issue fixed since version 9. Are you able to test with the latest release?

pbreisch commented 7 years ago

I have not tested with a newer build. And we can only deliver with HAP9 so if it is an issue that was fixed with a later build I guess I am stuck for now.

bangnoise commented 7 years ago

I don't know what reason your operator has for requiring version 9 (output should be identical), but I'd pursue upgrading the codec version with them as a first step.

eclazi commented 7 years ago

d3 has bundled v12 of the Quicktime codec in the installer for the last 5 months. AFAIK the only thing that is not supported yet is Hap Q Alpha (HAPM).

FYI, I work for d3.

Edit: HapA is also not supported.

pbreisch commented 7 years ago

That is interesting. I have been consistently told to deliver Hap9 by all the operators I have worked with, the one thing they have in common is they are all from the same company. I will run this up the chain and see where it gets me. Thanks for the support.

eclazi commented 7 years ago

As @bangnoise mentioned there should be no binary difference between the output of different versions of the codec.

bangnoise commented 5 years ago

Closing this as it appears to be an issue fixed in recent versions.