1 Reply Latest reply on Jun 9, 2017 12:17 AM by Mohit Goyal

    Panorama merge slow after app has been open for awhile.


      Hey Everyone,


      I've noticed for a long time that LR has some memory-leak style symptoms after it's been open for awhile. Normally this was after at least 30 min but lately I've noticed it's supremely slow after building even just a couple of panorama images.

      I also notice that the CPU utilisation doesn't max out anywhere near as much - and yes, I've checked that my 32gb of RAM isn't maxing either.


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      Here's what it looks like when I build 6 HDR dng files on a fresh start of LR.

      Take note of the small Memory graph on the left, nowhere near capping out.


      TOTAL TIME: 45 seconds





      After about 10 min of building various panorama's it eventually slows down... here are the same files built again after I noticed the slowdown

      You can clearly see the RAM doesn't get anywhere near maximum.


      TOTAL TIME: 2min 35 seconds



      Here's my system info


      Lightroom version: CC 2015.9 [ 1106920 ]

      License: Creative Cloud

      Operating system: Windows 10

      Version: 10.0

      Application architecture: x64

      System architecture: x64

      Logical processor count: 8

      Processor speed: 2.8 GHz

      Built-in memory: 32585.9 MB

      Real memory available to Lightroom: 32585.9 MB

      Real memory used by Lightroom: 2380.6 MB (7.3%)

      Virtual memory used by Lightroom: 2533.4 MB

      GDI objects count: 338

      USER objects count: 1269

      Process handles count: 1115

      Memory cache size: 232.4MB / 7890.4MB (2.9%)

      Maximum thread count used by Camera Raw: 8

      Camera Raw SIMD optimization: SSE2,AVX,AVX2

      Camera Raw virtual memory: 1881MB / 16292MB (11%)

      System DPI setting: 96 DPI

      Desktop composition enabled: Yes

      Displays: 1) 1920x1080

      Input types: Multitouch: No, Integrated touch: No, Integrated pen: No, External touch: No, External pen: No, Keyboard: No


      Graphics Processor Info:

      GeForce GTX 1050/PCIe/SSE2


      Check OpenGL support: Passed

      Vendor: NVIDIA Corporation

      Version: 3.3.0 NVIDIA 381.89

      Renderer: GeForce GTX 1050/PCIe/SSE2

      LanguageVersion: 3.30 NVIDIA via Cg compiler


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      If anyone can help me on why this is happening I'd be greatly appreciative. It's frustrating - actually, it's almost pointless to persist - having to restart LR constantly.


      Thanks in advance!