[Avid-L2] R3D transcoding benchmark

I played around with both MC/SYM5 and MF and did some comparative testing.
Results below:

R3D Transcoding performance - MC/SYM vs. MetaFuze

 

Testbed:

-HP Z800 Dual QuadCore at 2.8GHz, 6GB RAM

-internal 500GB 7200RPM SATA drive

-Nvidia Quadro FX4800 Graphics, 190.38 drivers

-Win7 64bit, Symphony v5.0, MetaFuze 2.1.1

-Nitris DX BOB

-74seconds R3D clip, 4K 16:9/23.98, build20 FW

-In 'Source settings' Debayer=High, ChromaDenoise=off,
OLPF=off

-In 'Media creation settings'> 'Render' Tab >'R3D
Debayer Quality' as in table

 

                                                     App
 
Quality


      MC/SYM v5  


      MetaFuze
v2.1.1




Half Good                      Render Time


92sec.


101sec.




                                       X RT


1.2x


1.4x




                                       CPU  usage


16cores/80%


16cores/90%




Half Premium               Render Time


242sec.


213sec.




                                       X RT


3.3x


2.9x




                                       CPU  usage


16cores/90%


16cores/90%




Full                                 Render Time


1220sec.


614sec.




                                       X RT


16.5x


8.3x




                                       CPU  usage


8cores/30%


16cores/90%

 

Notes:

MC/SYM
is marginally better in HalfGood qualityMetafuze
is marginally better in HalfPremium transcode but twice as fast in
Full.Unfortunately, there is currently no method of passing the  edit/grade to Metafuze and use it as a
render engine for a finished cutLooking
at CPU usage, it appears MC/SYM does not use Hyperthreading when
transcoding at Full debayer quality, and is not able to use the main cores
at full potential(only 30% instead of theoretical 50% max). Optimization
badly needed herePure consolidation
of R3D footage is not possible, as there is no REDcode encoder for either
Mac or PC.Performance
dictates  workflow:

-dailies HalfGood/HalfPremium
quality, both products can be used, MC has the edge of allowing fast, easy
viewing/logging of R3D footage(as opposed to a clunky/rudimentary Metafuze
interface)

-finishing could use Metafuze
transcoded footage(1:1MXF/High rate DNx) or just AMA link to R3D and transcode
at the end for playout to tape/export. First method will benefit from the MF
render speed(with the downside of transcoding full clips). Second method is
slower, but transcodes only the parts of clips used in the sequence.
cheers,Bogdan Grigorescowww.finale.tv

[Non-text portions of this message have been removed]

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