CPU overworking with Lightroom Classic CC update to 7.3

[Gary Lum]

Hello, has anyone else noticed that whenever you open Lightroom Classic CC after the 7.3 update that CPU activity jumps? My MacBook Pro's fans have been going hell for leather everytime I open Lightroom Classic CC. I've not read about this problem anywhere else yet so just wanted to mention it to see if anyone else has noticed it.

I'm using an MBP Retina 13 inch early 2015 with 16 GB RAM and 3.1 GHz Intel Core i7 processor.

Thanks

[Mohit Goyal]

Hi GaryLum,

Thanks for the feedback. Could you please share your system info with us? Go to Lightroom Classic > help menu > system info and provide the dialogue information or you can post a screenshot of the same.

Also, have you tried unchecking the GPU from the Lightroom preferences and let us know if that helps.

Regards,

Mohit

[Gary Lum]

Hello Mohit,

Thank you.

Lightroom Classic version: 7.3

License: Creative Cloud

Language setting: en

Operating system: Mac OS 10

Version: 10.13.4

Application architecture: x64

Logical processor count: 8

Processor speed: 2.8 GHz

Built-in memory: 16 384.0 MB

Real memory available to Lightroom: 16 384.0 MB

Real memory used by Lightroom: 772.7 MB (4.7%)

Virtual memory used by Lightroom: 4 345.1 MB

Memory cache size: 0.0MB

Internal Camera Raw revision: 933

Maximum thread count used by Camera Raw: 5

Camera Raw SIMD optimization: SSE2,AVX,AVX2

Camera Raw virtual memory: 17MB / 8191MB (0%)

Camera Raw real memory: 18MB / 16384MB (0%)

Displays: 1) 3840x2400

Graphics Processor Info:

Metal: NVIDIA GeForce GT 750M

Application folder: /Applications/Adobe Lightroom Classic CC

Library Path: /Volumes/Lightroom2016-05/Lightroom

Catalog/Lightroom2016-05/lightroom2016-05.lrcat

Settings Folder: /Users/garydlum/Library/Application Support/Adobe/Lightroom

Installed Plugins:

1) AdobeStock

2) Aperture/iPhoto Importer Plug-in

3) Athentech Perfect Exposure

4) Athentech Perfect Eyes

5) Aurora HDR 2017

6) Aurora HDR 2018

7) Canon Tether Plugin

8) Cloud Tagger

9) Export to Photomatix Pro

10) Facebook

11) Flickr

12) HDR Efex Pro 2

13) JPEGmini

14) LR/Instagram

15) Luminar

16) Luminar 2018

17) Nikon Tether Plugin

18) Perfectly Clear Complete

19) Perfectly Clear Complete v3

20) Photo Upload

21) SmugMug

Config.lua flags: None

AudioDeviceIOBlockSize: 512

AudioDeviceName: Built-in Output

AudioDeviceNumberOfChannels: 2

AudioDeviceSampleRate: 44100

Build: 10.0x7

CoreImage: true

GL_ACCUM_ALPHA_BITS: 0

GL_ACCUM_BLUE_BITS: 0

GL_ACCUM_GREEN_BITS: 0

GL_ACCUM_RED_BITS: 0

GL_ALPHA_BITS: 8

GL_BLUE_BITS: 8

GL_DEPTH_BITS: 24

GL_GREEN_BITS: 8

GL_MAX_3D_TEXTURE_SIZE: 2048

GL_MAX_TEXTURE_SIZE: 16384

GL_MAX_TEXTURE_UNITS: 8

GL_MAX_VIEWPORT_DIMS: 16384,16384

GL_RED_BITS: 8

GL_RENDERER: NVIDIA GeForce GT 750M OpenGL Engine

GL_SHADING_LANGUAGE_VERSION: 1.20

GL_STENCIL_BITS: 8

GL_VENDOR: NVIDIA Corporation

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GL_ARB_depth_clamp GL_ARB_depth_texture GL_ARB_draw_buffers

GL_ARB_draw_elements_base_vertex GL_ARB_draw_instanced

GL_ARB_fragment_program GL_ARB_fragment_program_shadow

GL_ARB_fragment_shader GL_ARB_framebuffer_object GL_ARB_framebuffer_sRGB

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GL_ARB_vertex_array_bgra GL_ARB_vertex_blend GL_ARB_vertex_buffer_object

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GL_EXT_packed_depth_stencil GL_EXT_packed_float GL_EXT_provoking_vertex

GL_EXT_rescale_normal GL_EXT_secondary_color GL_EXT_separate_specular_color

GL_EXT_shadow_funcs GL_EXT_stencil_two_side GL_EXT_stencil_wrap

GL_EXT_texture_array GL_EXT_texture_compression_dxt1

GL_EXT_texture_compression_s3tc GL_EXT_texture_env_add

GL_EXT_texture_filter_anisotropic GL_EXT_texture_integer

GL_EXT_texture_lod_bias GL_EXT_texture_mirror_clamp

GL_EXT_texture_rectangle GL_EXT_texture_shared_exponent GL_EXT_texture_sRGB

GL_EXT_texture_sRGB_decode GL_EXT_timer_query GL_EXT_transform_feedback

GL_EXT_vertex_array_bgra GL_APPLE_aux_depth_stencil GL_APPLE_client_storage

GL_APPLE_element_array GL_APPLE_fence GL_APPLE_float_pixels

GL_APPLE_flush_buffer_range GL_APPLE_flush_render GL_APPLE_object_purgeable

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GL_NV_conditional_render GL_NV_depth_clamp GL_NV_fog_distance

GL_NV_fragment_program_option GL_NV_fragment_program2

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GL_NV_texgen_reflection GL_NV_texture_barrier GL_NV_vertex_program2_option

GL_NV_vertex_program3 GL_SGIS_generate_mipmap GL_SGIS_texture_edge_clamp

GL_SGIS_texture_lod

I unchecked the GPU in preferences, closed down Lr and waited for my system

to settled and then restarted Lr. Soon after the restart, Lr starts taking

up the %CPU in activity monitor. It sits at >350.

I'd appreciate your help in resolving this.

Thanks

Regards,

Gary

[Ian Lyons · Accepted solution]

https://forums.adobe.com/people/Gary+Lum  wrote

I unchecked the GPU in preferences, closed down Lr and waited for my system

to settled and then restarted Lr. Soon after the restart, Lr starts taking

up the %CPU in activity monitor. It sits at >350.

Something associated with Lr is running in background. Unfortunately, find what that might be can be tricky.

Five items spring immediately to mind:

1. One time hash for LR CC sync: While I don't believe it's relevant to Lr7.3 please check out this article Issues after updating to Lightroom Classic CC 7.2

2. Lightroom syncing files to Creative Cloud: Check Lr Preferences>Lightroom Sync panel. Unless you are syncing files there should be no activity

3. Face tagging is On: Check status of Face Detection in Catalog Settings>Metadata panel. If you don't use face tagging then it should be unchecked.

4. Embedded Previews: Lr Preferences> General panel. Check status of 'Replace embedded previews... during idle time'. If you don't use embedded previews during import this preference should can be unchecked.

5. Auto write changes into XMP: Check status in Catalog Settings> Metadata panel. Ideally, the preference should be unchecked.

Edit: minor edit to item 4

[Gary Lum]

Hi Ian,

Thanks very much. I'll check out those points now. Much appreciated.

Regards,

Gary

[Gary Lum]

You're a legend Ian.

It was the face detection. As soon as I unchecked this, the CPU activity dropped.

Much appreciated Sir.

Regards,

Gary

[Ian Lyons]

OK, that's great news.

I've earned my bonus today - wait a minute, I don't get paid

[davidb57604764]

It was face detection for me. Many thanks for helping to resolve this Ian!

[omare36426257]

I just did the same. Everything is back to normal. cpu at 3.5%. Thank you very much!

[davidb57604764]

Revisiting because there's still something weird going on with LR 7.3. I initially thought disabling face detection had solved the issue but something persists. There are periods when my HD just goes into activity overload when LR is running and my LR CPU usage jumps accordingly. I've been through all of the other suggestions and none have made any difference. It sounds as though it's indexing something in the background and it's only been doing this since the upgrade. Any other ideas as to what may be causing this?

[Gary Lum]

The unchecking face detection seems to have the resolved the issue for me.

[Mattis A. Falch]

I got the same problem but I never use Face detection. LR 7.3 is strugeling real hard to keep up, it lags turtle glued to the ground.

MacOS High Sierra 10.13.4

Mac (Retina 5K, 27-inch, 2017)

4,2 GHz Intel Core i7

16 GB 2400 MHz DDR4

Radeon Pro 580 8192 MB

[Ian Lyons]

https://forums.adobe.com/people/Mattis+A.+Falch  wrote

I got the same problem but I never use Face detection. LR 7.3 is strugeling real hard to keep up, it lags turtle glued to the ground.

Have you actually checked all of the above suggestions? It wouldn't be the first time that I've been convinced that it couldn't be 'X' because I don't use it only to find that I had inadvertently turned 'X' on/off.

[Mattis A. Falch]

Yes.. I ended up with downgrading, now everything works fine.

[Gary Lum]

If you follow the thread in this discussion Ian posted some helpful

suggestions. Unchecking the auto face detection fixed it for me.

[davidb57604764]

Yup,

I have exactly the same issue. Lightroom is gobbling up CPU like there's no tomorrow. Unchecking the GPU makes no difference:

Lightroom Classic version: 7.3 [ 1164630 ]

License: Creative Cloud

Language setting: en-GB

Operating system: Mac OS 10

Version: 10.13.3 [17D102]

Application architecture: x64

Logical processor count: 24

Processor speed: 3.4 GHz

Built-in memory: 65,536.0 MB

Real memory available to Lightroom: 65,536.0 MB

Real memory used by Lightroom: 4,764.6 MB (7.2%)

Virtual memory used by Lightroom: 11,814.5 MB

Memory cache size: 434.8MB

Internal Camera Raw revision: 933

Maximum thread count used by Camera Raw: 5

Camera Raw SIMD optimization: SSE2

Camera Raw virtual memory: 2368MB / 32767MB (7%)

Camera Raw real memory: 2386MB / 65536MB (3%)

Displays: 1) 3840x1600

Graphics Processor Info:

Metal: AMD Radeon RX 580

[Gary Lum]

While I'm glad it's not just me, it sucks that others are affected too. I

hope this doesn't turn out like the auto import saga.

[Mattis A. Falch]

I have checked all of the alternatives multiple times... LR is still running sluggish and kicking the CPU hard,   up to 5-600%. Any other advise?

[philippv15512318]

I had a similar problem, with the CPU sitting at about 125% all the time, LR being idle (no preview building etc., sync off). Taking into account what Ian wrote earlier, I switched on sync and deactivated all plugins I dont really need. Restarted LR and voila, I´m down to about 2%. I thought, hey, it´s the darned 3rd party plugins (Koken, Palette) that caused this. So I stopped the sync, began to write this post, checked again and we´re back at 130%. I´m confused now. Isn´t it meant to be the other way around?

/e: Oh, I´m on an early 2015 Retina MacBook pro with OS X 10.13.5 and LR 7.4.