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Question

High GPU and CPU usage in Develop when idle.

Forum|Forum|2 years ago
May 15, 2023
7 replies
2441 views

With v12.3 and running Ventura 13.3.1a, Classic is using a massive amount of cpu/gpu when viewing an image in Develop. On my M1 Max/64GB, Lr is doing nothing and using 65% GPU and 500% CPU. I can let the machine idle for as long as i want, and the usage doesn't change. Nothing is happening in Lr other than viewing the image in Develop.

If i render Smarts and set the pref to use SP in Develop, the issue does not change.

Does anyone know what's happening here?

macOS

This topic has been closed for replies.

KG Shoots Photos

Participating Frequently

Same Issue here I can leve it site doing nothing and it is at max CPU usage. I use REVIT 2024 and it does not tax my systerm as much

Lightroom Classic version: 13.3 [ 202405092057-40441e28 ]

License: Creative Cloud

Language setting: en

Operating system: Windows 10 - Home Premium Edition

Version: 10.0.19045

Application architecture: x64

System architecture: x64

Logical processor count: 8

Processor speed: 4.2GHz

SqLite Version: 3.36.0

CPU Utilisation: 52.0%

Power Source: Plugged In, 255%

Built-in memory: 32671.4 MB

Dedicated GPU memory used by Lightroom: 3695.0MB / 8067.0MB (45%)

Real memory available to Lightroom: 32671.4 MB

Real memory used by Lightroom: 6568.9 MB (20.1%)

Virtual memory used by Lightroom: 10964.5 MB

GDI objects count: 1156

USER objects count: 3180

Process handles count: 5650

Memory cache size: 8348.9MB

Internal Camera Raw version: 16.3 [ 1863 ]

Maximum thread count used by Camera Raw: 5

Camera Raw SIMD optimization: SSE2,AVX,AVX2

Camera Raw virtual memory: 3052MB / 16335MB (18%)

Camera Raw real memory: -2332MB / 32671MB (-7%)

Cache1:

Final1- RAM:37.0MB, VRAM:0.0MB, 98A304EF-6DA6-40CD-AE03-DFF629769C0A.dng

Final2- RAM:143.0MB, VRAM:0.0MB, 20240502-King & Cresent-86.CR3

Final3- RAM:37.0MB, VRAM:0.0MB, 47BDD4C7-51C7-4925-BE65-4DB96B4E6CF6.dng

Final4- RAM:143.0MB, VRAM:0.0MB, 20240502-King & Cresent.CR3

Final5- RAM:37.0MB, VRAM:0.0MB, 1BDC448F-DFC1-4215-90F9-AEC747E69971.dng

Final6- RAM:37.0MB, VRAM:0.0MB, 2D75D7C0-38E9-493F-B29C-1F6FA45A7A03.dng

Final7- RAM:37.0MB, VRAM:0.0MB, D3A792CA-2816-4539-904E-62A0FA76A25C.dng

Final8- RAM:37.0MB, VRAM:0.0MB, 5BD01BAB-884D-4C0D-8E06-7775C21FBBDD.dng

Final9- RAM:520.0MB, VRAM:1651.0MB, 20240502-King & Cresent-2.CR3

Final10- RAM:37.0MB, VRAM:0.0MB, 206C7167-0914-4752-A107-41070DFCDB7F.dng

Final11- RAM:37.0MB, VRAM:0.0MB, 0D009C9D-4195-4E25-BDE8-C211087CB548.dng

NT- RAM:1102.0MB, VRAM:1651.0MB, Combined:2753.0MB

Cache2:

m:8348.9MB, n:1067.9MB

U-main: 112.0MB

System DPI setting: 96 DPI

Desktop composition enabled: Yes

Standard Preview Size: 2560 pixels

Displays: 1) 2560x1440, 2) 2560x1440, 3) 2560x1440

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

Graphics Processor Info:

DirectX: NVIDIA GeForce GTX 1070 (31.0.15.5176)

Init State: GPU for Export supported by default

User Preference: Auto

Application folder: D:\Program Files\Adobe Lightroom Classic

Library Path: D:\Users\lordd\Pictures\Lightroom\Lightroom Catalog-v13-3.lrcat

Settings Folder: C:\Users\Kelly\AppData\Roaming\Adobe\Lightroom

Installed Plugins:

1) AdobeStock

2) Flickr

3) Nikon Tether Plugin

Config.lua flags:

Adapter #1: Vendor : 10de

Device : 1b81

Subsystem : 33011028

Revision : a1

Video Memory : 8067

Adapter #2: Vendor : 8086

Device : 5912

Subsystem : 7db1028

Revision : 4

Video Memory : 80

Adapter #3: Vendor : 1414

Device : 8c

Subsystem : 0

Revision : 0

Video Memory : 0

AudioDeviceIOBlockSize: 1024

AudioDeviceName: $$$/dvaaudiodevice/SystemDefaultAndEffectiveDeviceName=System Default - Speakers / Headphones (Realtek Audio)#{comment}DVAAU-4201250: Open the audio hardware preferences page.

AudioDeviceNumberOfChannels: 2

AudioDeviceSampleRate: 48000

Build: LR5x120

Direct2DEnabled: false

GL_ACCUM_ALPHA_BITS: 16

GL_ACCUM_BLUE_BITS: 16

GL_ACCUM_GREEN_BITS: 16

GL_ACCUM_RED_BITS: 16

GL_ALPHA_BITS: 0

GL_BLUE_BITS: 8

GL_DEPTH_BITS: 24

GL_GREEN_BITS: 8

GL_MAX_3D_TEXTURE_SIZE: 16384

GL_MAX_TEXTURE_SIZE: 32768

GL_MAX_TEXTURE_UNITS: 4

GL_MAX_VIEWPORT_DIMS: 32768,32768

GL_RED_BITS: 8

GL_RENDERER: NVIDIA GeForce GTX 1070/PCIe/SSE2

GL_SHADING_LANGUAGE_VERSION: 4.60 NVIDIA

GL_STENCIL_BITS: 8

GL_VENDOR: NVIDIA Corporation

GL_VERSION: 4.6.0 NVIDIA 551.76

GPUDeviceEnabled: false

OGLEnabled: true

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B.Auffret

Participant

Same problem here... switching from library to dev module makes my 16" M1 Pro 32GB GPU flying to 100% usage and making editing very slow, RAM exploding (using 25GB juste after 2 photos edited...)

If someone finds a solution it would be awesome because it's a huge problem when it takes 4-5 secondes just to see the next photo...

That computer should be fast enough to edit in confort and now it is a real pain... Lightroom Classic needs to be fixed asap

McYH

Participant

I have a similar issue (also Mac OS 13.3.1 (a) and LrC 12.3).

Because of recent high RAM usage of LrC after relative short edit sessions, I have activity monitor open all the time.

With GPU acceleration on the ram usage with not mmuch more than LrC open goes into the orage (medium memory pressure) on my 32 GB mac mini M2 pro, and thus unnecessary swap usage and ssd wear.

Anyway, while resuming work today (Mac was in Sleep mode) I noticed continuous ± 80% GPU usage while LrC was in the develop module, inactive on another desktop (so not even visible). It dropped immediatly when switching to library view.

It was a Canon raw file (CR2).
GPU usage returns when reentering Develop.
Problem goed away when switching images in Delop (returning to 1st image with problem behaves nicely now)
But the problem returns when the original image is reopened from LIbrary to Develop.
So cleary something wrong.

It would also be nice to have more info withing the activity monitor of LrC; like Apple's Aperture use to have.
(e.g. genereating previews ...)

McYH

Participant

Small update:

enable/disbale Generating previews in parallel did nothing.

But when selectively dsiabling GPU acceleration while idle in develop, it switches:

Full GPU support (view edit, export) - ±100% (± one core) CPU, 80% GPU
only edit and view: 900% cpu (so almost all cores), 70% GPU

finally disabling GPU View; cpu and GPU drops to just a few %.

Re-enabling (full) GPU acceleration, switch to libray and re-entering develop to the same (problem) image: HIGH GPU usage when idle.

Momentopname_van_Lightroom_Classic.txt

Ian Lyons

Community Expert

I would try resetting the LrC preference file. Doing so will rule out most of the usual suspects. You can use method 1 described in https://helpx.adobe.com/lightroom-classic/help/setting-preferences-lightroom.html

Conrad_C

Community Expert

In addition to the background operations GoldingD mentioned (which you check by clicking the identity plate to drop down the background operations menu), there are a couple of preferences that also enable more background operations. When the settings highlighted below are enabled, Lightroom Classic pre-caches to enhance frame-by-frame responsiveness, by taking advantage of when a CPU has a very high number of cores (like on an M1 Max) sitting around looking for something to do. If you don’t want these to happen, disable these too.

On my M1 Pro, I generally do not see overuse of the CPU cores. Because the M1 Max has 10 CPU cores, I think 500% usage can be interpreted as using only half the total CPU capacity. (Because on macOS, 100% means the equivalent of one core in full use, and 400% would be four cores fully used.)

GoldingD

Legend

Any form of Sync occuring in the backgoround?

Sync to Cloud

Face Rec

Address lookup

etc

D Fosse

Community Expert

Not happening here in 12.3. I get the expected spikes when browsing, but it settles immediately.

But then, there are so many things that can potentially run in the background these days (face recognition, syncing, what have you). I have all of that turned off.

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