Skip to main content
P
pkm70527724
Participant
July 17, 2022
Question

Lightroom Classic 11.4.1 Export extremely slow after LrC update

  • July 17, 2022
  • 2 replies
  • 1149 views

I have Macbook Pro 2019 witth 64GB, 2TB SSD

Lightroom Classic version: 11.4.1 [ 202206241800-b406ce4c ]
License: Creative Cloud
Language setting: en-US
Operating system: Mac OS 10
Version: 10.15.7 [19H1922]
Application architecture: x64
Logical processor count: 16
Processor speed: 2.4GHz
SqLite Version: 3.36.0
Built-in memory: 65,536.0 MB
Real memory available to Lightroom: 65,536.0 MB
Real memory used by Lightroom: 3,152.8 MB (4.8%)
Virtual memory used by Lightroom: 16,194.9 MB
Memory cache size: 51.1MB
Internal Camera Raw version: 14.4.1 [ 1122 ]
Maximum thread count used by Camera Raw: 5
Camera Raw SIMD optimization: SSE2,AVX,AVX2
Camera Raw virtual memory: 358MB / 32767MB (1%)
Camera Raw real memory: 361MB / 65536MB (0%)
Displays: 1) 2688x1680, 2) 3840x2160

Graphics Processor Info:
Metal: AMD Radeon Pro 5500M


Init State: 5
User Preference: 4

=====================

The Export of JPEG is very slow in 11.4.1 with GPU enabled. The Graphics Card has 8GB memory (10 pics export 135 sec) 
I turned off GPU and it became much faster ( 10 pics export 80 sec).  Is 8GB not enough for GPU use ? 

    This topic has been closed for replies.

    2 replies

    josephlavine
    Community Expert
    josephlavineCommunity Expert
    Community Expert
    July 20, 2022

    Albeit just a couple of years old, this sounds like a graphics card situation. The newer software versions are written to utilize graphic cards for more and more functions. This works great on the latest gear, it can cause slowdowns on machines that are just a few years old.

    warmly/j

    P
    pkm70527724Author
    Participant
    July 17, 2022

    Update:  11.4.1 was extremely slow so I went back to 11.3.1 and Exported the exact same 10 files (exact same settings). So here is the summary result of 10 files export  ( average of 3 repeat tests)
    11.4.1  with GPU off :  80 seconds 

    11.4.1 with GPU enabled : 135 seconds. (AMD Radeon Pro 5500M 8GB)

    11.3.1 with GPU disabled:  12 seconds  

    11.3.1 with GPU auto:  12 seconds  

     

    Something seriously wrong with LrC 11.4.1 - at least on my Macbook Pro 2019 (i9, 64GB, 2TB SSD) running Catalina.  

      johnrellis
      johnrellis
      Legend
      July 17, 2022

      Good timings, thanks.

       

      There have been a number of complaints about Export being very slow in the latest couple of LR releases.  It's not affecting most people, since we'd see many, many more complaints here.  

       

      I have a similar hardware configuration (15" 2019 Macbook Pro, 32 GB, Radeon Pro Vega 20 4 GB, 4 TB SSD) on Mac OS 12.4. I've done similar measurements with LR 11.4.1, and I see no change in export performance with GPU off and a modest 11% speed improvement with it on (my graphics chipset has 4 GB, while it seems Adobe recommends at least 8 GB to use the GPU for export).

       

      You're on Mac OS 10.15.7, two major versions old, which means you have a two-year-old graphics driver for the Radeon graphics hardware.  As LR moves to using the GPU for more and more operations, it's becoming much more sensitive to bugs in older graphics drivers, since LR is exercising much different code paths in the drivers than games or other apps.  Even though you've tried turning off the GPU when exporting, perhaps there's a bug in LR that's causing it to still use the GPU for some parts of the Export.

       

      On Windows, you can update the graphics drivers separately from the OS, but that's not the Apple way.  I assume there's a specific reason you haven't updated to Mac OS 12.4?  You might try temporarily updating to Mac OS 12.4 to see if that addresses the issue (and maybe rolling back to 10.15.7).  

       

      You could stay on 11.3.1 for now, wait two months, and see if the next release of LR addresses this issue. It may well not, since Adobe doesn't put much effort into compatibility with problems with specific older graphics drivers.

       

       

       

       

        P
        pkm70527724Author
        Participant
        July 17, 2022

        Goor morning and thank you for response!  My 2019 Macbook pro hardware is not very old. In fact it was the highest config Apple offered for Intel when I purchased. I have not upgraded the OS because I never had similar issues in the past with any apps.  That could solve the slowness issue but I also think there is some bug that got introduced in the new codepath (11.4.x) and not enough QA tested by Adobe.  I will stick to 11.3.1 for now.     

        Terms & ConditionsAccessibility statement
        Using the community Terms of use Privacy Cookie preferences Do not sell or share my personal information ad choicesAdChoices