P: (Win) Consumes RAM during import and fails to release afterwards

[perfect_goal1587]

I notice that LR eats all memory when you start importing images.

When opened, it takes about 1.5-3GB ram. Then import 100 images, and RAM shoots up to +17GB

Iv been doing some tests with smaller raw files, same thing, always goes up to 17GB ram usage. The folder i imported as test contains only 5GB of raws, and LR uses more then twice that amount to import those images? When you delete the images, 17GB ram is still in use. Then tested less images, like 30, and memory still goes up, but less, around 5GB ram extra, for images that on disk only take around 1GB. Importing more images, like +300 will not make memory to increase more then 17GB.

Solution? Import images, restart LR to clear memory, edit... and ram usage will stay "normal" around 6GB during edit after some testing. Thats 10GB less then just doing an import. Whats up with that?

Im on 13.5 btw

[Moved from ‘Bugs’ to ‘Discussions’ by moderator, according to forum rules.]

[perfect_goal1587]

Another day, another frustrating import; Soon I need to update my plan, with this problem, I wonder why I would pay...

WHAT IS THIS!

Camera Raw virtual memory: 14317MB / 15908MB (89%)
Camera Raw real memory: -150405MB / 31817MB (-472%)

Cache1:
NT- RAM:0,0MB, VRAM:0,0MB, Combined:0,0MB

Cache2:
m:1071,7MB, n:0,0MB

U-main: 115,0MB

[GoldingD]

deleted

[GoldingD]

time again to give Adobe a chat

[perfect_goal1587]

Just installed V.14

Memory usage 95% again.

Lightroom Classic version: 14.0 [ 202410032041-b815649f ]
License: Creative Cloud
Language setting: en
Operating system: Windows 11 - Business Edition
Version: 11.0.26100
Application architecture: x64
System architecture: x64
Logical processor count: 24
Processor speed: 1,9GHz
SqLite Version: 3.36.0
CPU Utilisation: 7,0%
Power Source: Plugged In
Built-in memory: 31817,8 MB
Dedicated GPU memory used by Lightroom: 261,6MB / 7948,0MB (3%)
Real memory available to Lightroom: 31817,8 MB
Real memory used by Lightroom: 17080,6 MB (53,6%)
Virtual memory used by Lightroom: 19717,8 MB
GDI objects count: 1024
USER objects count: 3215
Process handles count: 8723
Memory cache size: 1034,4MB
Internal Camera Raw version: 17.0 [ 2043 ]
Maximum thread count used by Camera Raw: 5
Camera Raw SIMD optimization: SSE2,AVX,AVX2
Camera Raw virtual memory: 14317MB / 15908MB (89%)
Camera Raw real memory: -52131MB / 31817MB (-163%)

[GoldingD]

to: perfect_goal1587

This may have gotten lost in the 8 pages. And this may have gotten asked of a different member in this apparently merged very long post, but??

Can you share a screenshot of your LrC /Preferences/Performance/

Interested in the Camera RAW CACHE.

This for the OP at the top.

[perfect_goal1587]

I've set it to 20GB and back to 5GB, doesnt make any difference. Need to quit LR every time after import or its unworkable

[zonevii]

Adobe Help fixed the problem very quickly for me.  Invoved uninstalling Photoshop and Lighrroom and renaming all remaning folders and associated files before reinstalling both.  Problem Fixed.  

Contact them.

[XeoN_PL]

I just gave up for a while and restart LRC after every 2 photos...

BUT...

I decided to try something else. I opened GeForce Experience tool and used "dedicated optimalization" for LRC. Of course it didn't change anything. But when I turned on again the option in LRC called "Use GPU to display image" (it can be different in English or other languages, but it's the first one checkbox to select in efficiency preferences), it started to work perfectly fine. After 3 weeks of work I hadn't even once restart my LRC. I'm doing 30-40 photos for a day in one session.

Maybe it will help someone like me, because if it wouldn't for me, I'd probably stop working with LRC and start to use PS instead.

[Jim23729369r346]

I have a very similiar configuration except running Win11 with very similiar memory problem. It is related to masks in develop mode.

My workaround was to look at the pagefile allocation and found that it was set to low values. I have let Windows automatically manage the pagefile which has stopped the crashes although the underlying memory problem is still there. If the pagefile is manually managed it should be at least 1.5 times the amount of real memory, ie, at least 48GB on a 32GB machine and it should be on a SSD, but not the same SSD as the catalogue. The jury is still out but my machine as not crashed since making this change.

Interestingly, I also run LRC 14.0.1 on a Macbook Pro running MacOS 15. Watching activity monitor, I can see LRC allocating memory, using it and then freeing it. I can't reproduce the memory problem the Mac.

[D Fosse]

Actually that makes sense and may explain why some people have this problem but most don't.

The new AI algorithms are memory-intensive operations, and since LrC/ACR doesn't have a dedicated scratch disk like Photoshop, all it can do is use the system pagefile, which may not be sufficient.

Here's how you change the size of the pagefile:

https://www.tomshardware.com/news/how-to-manage-virtual-memory-pagefile-windows-10,36929.html 

[Jim23729369r346]

Update on the page file size. Allowing windows to automatically control the pagefile size has fixed the problem. Windows has allocated a 32GB page file which allowed LRC to use about 19-20GB of virtual memory (about 8-9GB real) without any problem. LRC can be seen acquiring and releasing memory as I would expect as I did various tests. I also ran Topaz Photo AI concurrently which drove real memory upto 68% usage (no free storage and about 30% standby) - page faults were minimal.  Both LRC and photo AI successfully ran to completion.  I tend to feel this is more a system configuration issue rather than a bug in LRC.