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    Lightroom 6 / CC2015 - Facial Recognition Terribly Slow, not using all of CPU or GPU, still keeps going when paused.


      This is actually a couple of issue but wondering if others are experiencing it and worked through it.


      I am using a Dual Xeon CPU 3.2 ghz Mac Pro, Catalog on SSD, Images files on Mirrored Pair, Dedicated GPU (max I can install in my version of Mac Pro) and hardware acceleration enabled in Lightroom.


      I watched the Lightroom 6 Facial Recognition tutorial which leaves out a lot of the bulk editing and says basically let it loose on your whole catalog.. NOT recommended.


      I started out with a couple small portrait galleries that identified a couple hundred total people to seed facial recognition so it didn't suggest everyone is the first person I confirmed (which it will do otherwise). I have also optimized my catalog multiple times.


      I have encountered the following serious performance issues and bugs with Facial Recognition.:

      • Lightroom Facial Recognition goes to a ridiculous crawl after about 2000 images to be confirmed. (i.e. 2000-2300 in a couple hours, 800-1200 in the next 12 hours)
      • Lightroom becomes largely unresponsive after having a fair number of images to be confirmed, even after pausing Address and Facial Recognition. So even selecting 4 rows of images can take 5 minutes with several long pauses.
      • Once I select and click confirm it takes up to 2 minutes to update the "to be confirmed" list again.
      • When I click on an individual at the top of the page, pause facial recognition and address lookup it still continues to "Look for similar faces" [BUG!!!!!!!!] even though all I want to do is just confirm some individuals more quickly in bulk with the images already identified.. not continue to look for more as a work around for the painfully slow responsiveness of the module.


      The odd part is that with all of the performance issues Lightroom will not use more than 20-30% of my two Xeon CPUs, barely touches my GPU (<10% CPU, 30% memory), my and no more than 35% of my memory. Computer Temps are also barely above startup temperatures and 15-25 degrees cooler than when I run other applications which will consume my entire CPU and memory if I let it. I have explored Lightroom's settings but seen nothing further I can configure to speed it all up.  I have also attempted the operation on images on the SSD, my drobo (known to be slow), an independent fast disk I have, and a pair of raided disks and have the same issues.


      I will also note that all of my other applications seem to continue to operate just fine.. the slowness seems to be contained to the Lightroom application itself.


      Lightroom version: 6.0 [1014445]

      Operating system: Mac OS 10 Version: 10.10 [3]

      Application architecture: x64

      Logical processor count: 8

      Processor speed: 3.2 GHz

      Built-in memory: 18,432.0 MB

      Real memory available to Lightroom: 18,432.0 MB

      Real memory used by Lightroom: 5,537.5 MB (30.0%)

      Virtual memory used by Lightroom: 32,240.6 MB

      Memory cache size: 4,342.0 MB

      Maximum thread count used by Camera Raw: 8

      Camera Raw SIMD optimization: SSE2

      Displays: 1) 2048x1152

      Graphics Processor Info:

      NVIDIA GeForce GTX 285 OpenGL Engine

      Check OpenGL support: Passed

      Vendor: NVIDIA Corporation

      Version: 3.3 NVIDIA-10.0.31 310.90.10.05b12

      Renderer: NVIDIA GeForce GTX 285 OpenGL Engine

      LanguageVersion: 3.30

      Application folder: /Applications/Adobe Lightroom

      Library Path: /Users/DryClean/Documents/Lightroom_Catalog/MyCat_LR6.lrcat

      Settings Folder: /Users/DryClean/Library/Application Support/Adobe/Lightroom


      Anyone have any suggestions?

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