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Giovanni Stoto
Known Participant
January 30, 2023
Question

Very bad performance with masks

  • January 30, 2023
  • 3 replies
  • 3702 views

Dear all,

 

I have serious performance issue with Lightroom Classic: here's a screen recording when editing a couple of pictures on my current laptop.

 

Link to screen recording 

 

Please look at system performance also: I see no sign of resource over-usage and CPU is not throttling, GPU is used max at 15% and CPU has 100% peaks. It's as though most of the GPU work is directed to the processor.

 

This was not happening before AI masks were introduced.

 

Here's the hw setup of my gaming laptop:

- i7 7700HQ

- GTX 1050Ti fully supported by LrC

- 32GB RAM

- 512 GB SSD (25GB cache, 1:1 previews generated at import)

 

Look especially at editing of second photo.

 

LrC is the only sw giving me headaches. It's like if it had memory leaks, slowing everything down.

 

Nvidia drivers (studio version) are up to date and freshly reinstalled from scratch. Maybe I should use the game ready? Perhaps the studio ones are now bugged?

 

Funny thing is that after recording the video above, I have closed LrC, reopened and I was still having problems, then I uninstalled LrC preserving setting, reinstalled it and when I reopened it for editing the portrait, all was smooth as butter. So reinstalling LrC solves the problem, but then in time things go havoc again.

This topic has been closed for replies.

3 replies

GoldingD
GoldingD
Legend
January 30, 2023

A few comments or observations

 

  • One is ACR, be that via PS or Bridge vs similar code in LrC. Yes the ACR may have some features not in the code within LrC. But, I do not think that is the problem
  • Another relates to users that do not use masking heavily not seeing these issues. Yes that would be correct, specifically in LrC, not so much in PS.
  • Another being differences in quality of computer management by owners. Bad bits of old software. Out of date drivers. Poorly managed Anti Virus, Clutter, etc. Perhaps, especially towards crashes, and towards performance overall, but maybe not performance degrading as the user adds more and more masks/brushes.

 

some history, pre masking

 

  • Remember that LrC is a parametric program, not a raster editor. Remember as you add more and more brushes, LrC gets slower and slower, as each develop step needs to be worked thru each time you make a mod. And remember brushes were the worst offenders towards this, as each brush was often more than one simple mod. Especially 4K and beyond. Members of this community often reccomended to 4K users having such issues, to revert to sub 4K to get work done. Yes this was more of a 4K issue then.

 

and once masking was added

 

  • Masking while improving the workflow added complexity to the parametric edits. May have added on to that parametric issue. A probably relied on improvements in OS and GPU drivers. Defiantly increased LrC GPU requirements (as in GPU acceleration previously supported on some GPU's no longer being supported)

 

and with improvements in masking, especially AI

 

  • each update/upgrade, the Masking system requirements keep getting stricter. So rigs previously working just fine, no longer perform as well, and might not support some AI. Each addition appears to increase LrC use of resources, more than say in PS, so this gets worse, especially on dated equipment or new with outdated drivers.

 

That brings me to my finish, and my point.

 

As you add more and more masks, as those masks get more and more complex, as those masks individually include more and more brushes, adds, subtracts, intersects, etc, LrC, a parametric program, starts to slow, eventually to to a crawl. How many mask? How many brushes? Users with say five masks, and perhaps just a few brushes, subtractions, adds, intersects, etc in each mask, might not see issues Users with hundreds' may be a problem. How many is too much?? What is the fix?

 

 

    C.Cella
    C.Cella
    Inspiring
    January 30, 2023

    @GoldingD 

     

    I envy your eloquence!

    Most well said, I failed to be clear as you have been 

     

    Now I have had the fortune/misfortune of being the first documented user to have ever reached in LrC what the Adobe engineers described (to me) as the "upper limit of edits in LrC"

     

    To make a simple but efficient analogy LrC can only lift 100kg and after that will collapse and give up (photo is reset)

    ACR from what I have done/tested, has no limit, it will no doubt get slower at one point but no reset will happen.

     

    So how come that ACR but also LrDesktop can do it but not LrC!?

     

    How come that a Plug-in (because ACR is a Plug-in) is more powerful than a fully fledged photo editor like LrC!?

     

    Also @johnrellis has enlighten me and I realized what my "too many masks" actually equate to a very manageable amount of data to process compared to the hardware I have.

    A rough estimate tells that when a photo has 200 million dab point it quates to something  like 200Mb of data to process and render.

     

    My MacBook Pro Max has 64gb RAM + 400gb/second bandwidth + 10-core CPU with 8 performance cores and 2 efficiency cores + 32-core GPU

    16-core Neural Engine

    400GB/s memory bandwidths.

     

    LrC somehow struggle with 200mb of dab points to render while ACR doesn't.

     

    .Edit 

     

    @johnrellis as alos pointed out in one of his bug reports that Ai tools could be run even on old hardware and CPU so it's not true what we need better hardware or the tools will not work.

     

    P.s.

    I am Lightroom fanboy, all my work is done in LrC, I love LrC but I must be honest about it.

    .

    GoldingD
    GoldingD
    Legend
    January 30, 2023
    So how come that ACR but also LrDesktop can do it but not LrC!?

     

    Well, I am clueless as to Lr Desktop, but as for ACR, or more importantly PS with ACR. Remember PS is a raster editor. Each and every edit changes the image, the image file might conceivably get a little bigger, but the history of the various edits do not add up to a performance hit. 

     

     

    In PS, Make a content aware fill, good, now a new image, make an new layer, fine, now you are working with a new iteration of the photo, an exposure change, same, on and on, might be a bit of a hit for a layer ??? At any point, should PS need to use ACR, it will be working from a new image, not a BUNCH of images (ignoring layers)

     

    LrC being non destructive, and Adobe accomplished this via LrC being a parametric editor, not raster. It is not so clean in terms of what occurs with each and every edit. Change the profile, Ok, change the exposure, check, the Shadows check, on and on. But each time you touch one of those buttons, each time you drag one of those sliders, LrC reads thru each and every step you took along the way starting from the first history step and recreates the image shown in the develop module, The larger the display resolution in use, the more pixels LrC has to create, and it recreates those (I think in the background)resultant previews until it works thru all the history states/steps. and masks . At some point something has to give, performance wise, and theoretically if we go extremely ballistic. perhaps crash wise (doubt if anyone pushes it that far)

     

    So PS vs LrC, even ACR vs LrC, may not be a valid comparison.

    C.Cella
    C.Cella
    Inspiring
    January 30, 2023

    @Giovanni Stoto 

     

    LrC has serious performance problems with Masking, specifically with brush.

    It's not even about hardware is purely in the code.

     

    Load the same image in ACRs and you will have no performance issues given the same edits, same hardware.

     

    To be sure create a snapshot before working in ACR.

      G
      Giovanni StotoAuthor
      Known Participant
      January 30, 2023

      My brother in law with a gen 4 i7 and a similar GPU uses brushes smoothly with an older version of Lightroom, so yes I do believe it's a LrC recent problem: bad code, memory leaks, bad use of GPU drivers .

       

      I'm saying this from a 25 year experience as sw engineer.

       

      Adobe must admit the problem.

        C.Cella
        C.Cella
        Inspiring
        January 30, 2023

        It is not really new.

        No matter the hardware LrC can't handle masking.

         

        This Bug Report  is relatively new but I discovered a d reported the issue more than 5 years ago.

         

        ACR, you will see, has no problems with our files/edits/masks.

         

        Difference being: the code!

         

        If LrC is too slow for you then use ACR but be sure to create a snapshot of the photo before you develop in ACR.

         

        .

        johnrellis
        johnrellis
        Legend
        January 30, 2023

        Please do the LR menu command Help > System Info and copy/paste the entire contents here so we can see exactly which versions of hardware and software LR thinks you're running.

        G
        Giovanni StotoAuthor
        Known Participant
        January 30, 2023

        Lightroom Classic version: 12.1 [ 202212072312-d7ab524b ]
        License: Creative Cloud
        Language setting: en
        Operating system: Windows 11
        Version: 10.0.22000
        Application architecture: x64
        System architecture: x64
        Logical processor count: 8
        Processor speed: 2,8GHz
        SqLite Version: 3.36.0
        CPU Utilisation: 2,0%
        Built-in memory: 32634,1 MB
        Dedicated GPU memory used by Lightroom: 391,1MB / 4017,0MB (9%)
        Real memory available to Lightroom: 32634,1 MB
        Real memory used by Lightroom: 1195,2 MB (3,6%)
        Virtual memory used by Lightroom: 1678,1 MB
        GDI objects count: 736
        USER objects count: 2686
        Process handles count: 3005
        Memory cache size: 5,1MB
        Internal Camera Raw version: 15.1 [ 1329 ]
        Maximum thread count used by Camera Raw: 5
        Camera Raw SIMD optimization: SSE2,AVX,AVX2
        Camera Raw virtual memory: 17MB / 16317MB (0%)
        Camera Raw real memory: 18MB / 32634MB (0%)
        System DPI setting: 96 DPI
        Desktop composition enabled: Yes
        Standard Preview Size: 1920 pixels
        Displays: 1) 1920x1080
        Input types: Multitouch: No, Integrated touch: No, Integrated pen: No, External touch: No, External pen: No, Keyboard: No

        Graphics Processor Info:
        DirectX: NVIDIA GeForce GTX 1050 Ti (31.0.15.2824)
        Init State: GPU for Image Processing supported by default
        User Preference: GPU for Export enabled

        Application folder: C:\Program Files\Adobe\Adobe Lightroom Classic
        Library Path: C:\Users\giova\Pictures\0 - Lightroom Catalog\Lightroom Catalog TheGios v12.lrcat
        Settings Folder: C:\Users\giova\AppData\Roaming\Adobe\Lightroom

        Installed Plugins:
        1) AdobeStock
        2) Flickr
        3) Nikon Tether Plugin

        Config.lua flags: None

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        AudioDeviceSampleRate: 48000
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