Lightroom Classic very high Cpu usage exporting images !

[Francesco Russotto]

Hi all, about 2-3 months when I finish a work and exporting the images, the CPU is used to 100% (all cores) and the computer becomes unusable. Mi computer is a workstation with 32 GB, Radeon PRO, 3,6 GHz Intel Core i9... SSD... And I've not Malware... Is it the version of Lightroom (9.2)?   Cheers. Francesco

[GoldingD]

Please post your system information as Lightroom reports it. In LRC click on Help, then System Info, then Copy. Paste info in a reply, preferably info from first line down tomand including plug-in info.

Also, state how much space you allow for Camera RAW CACHE

And state hiw many images being exported and average image size, total size if known.

[Francesco Russotto]

Versione di Lightroom Classic: 9.2 [ 202001311240-2d026470 ]
Licenza: Creative Cloud
Impostazioni lingua: it-IT
Sistema operativo: Mac OS 10
Versione: 10.14.6 [18G3020]
Architettura dell'applicazione: x64
Conteggio processore logico: 16
Velocità processore: 3,6 GHz
Versione SqLite: 3.30.1
Memoria integrata: 32.768,0 MB
Memoria reale disponibile in Lightroom: 32.768,0 MB
Memoria fisica usata Lightroom: 1.284,3 MB (3,9%)
Memoria virtuale usata Lightroom: 10.665,2 MB
Dimensione cache memoria: 62,8MB
Versione Camera Raw interna: 12.2 [ 384 ]
Numero di thread massimo utilizzato da Camera Raw: 5
Ottimizzazione SIMD Camera Raw: SSE2,AVX,AVX2
Memoria virtuale di Camera Raw: 0MB / 16383MB (0%)
Memoria reale di Camera Raw: 0MB / 32768MB (0%)
Monitor: 1) 2560x1440

Informazioni processore grafico:
Metal: AMD Radeon Pro WX 5100

Cartella applicazione: /Applications/Adobe Lightroom Classic
Percorso libreria: /+++Cataloghi Lightroom/Wedding&Engagements_2019/Wedding&Engagements_2019-2.lrcat
Cartella impostazioni: /Users/angeldust/Library/Application Support/Adobe/Lightroom

Plug-in installati:
1) AdobeStock
2) DxO PhotoLab 2
3) DxO PhotoLab 2 Importer
4) Facebook
5) Flickr
6) HDR Efex Pro 2
7) Perfectly Clear Complete
8) Plug-in acquisizione diretta Nikon
9) Plug-in unità di importazione Aperture/iPhoto
10) TTG CE4 Publisher

Indicatori Config.lua: None

AudioDeviceIOBlockSize: 512
AudioDeviceName: Bose USB Audio
AudioDeviceNumberOfChannels: 6
AudioDeviceSampleRate: 48000
Build: 12.1x4
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: 16384
GL_MAX_TEXTURE_SIZE: 16384
GL_MAX_TEXTURE_UNITS: 8
GL_MAX_VIEWPORT_DIMS: 16384,16384
GL_RED_BITS: 8
GL_RENDERER: AMD Radeon Pro WX 5100 OpenGL Engine
GL_SHADING_LANGUAGE_VERSION: 1.20
GL_STENCIL_BITS: 8
GL_VENDOR: ATI Technologies Inc.
GL_VERSION: 2.1 ATI-2.11.21
OGLEnabled: true
GL_EXTENSIONS: GL_ARB_color_buffer_float GL_ARB_depth_buffer_float 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 GL_ARB_half_float_pixel GL_ARB_half_float_vertex GL_ARB_imaging GL_ARB_instanced_arrays GL_ARB_multisample GL_ARB_multitexture GL_ARB_occlusion_query GL_ARB_pixel_buffer_object GL_ARB_point_parameters GL_ARB_point_sprite GL_ARB_provoking_vertex GL_ARB_seamless_cube_map GL_ARB_shader_objects GL_ARB_shader_texture_lod GL_ARB_shading_language_100 GL_ARB_shadow GL_ARB_shadow_ambient GL_ARB_sync GL_ARB_texture_border_clamp GL_ARB_texture_compression GL_ARB_texture_compression_rgtc GL_ARB_texture_cube_map GL_ARB_texture_env_add GL_ARB_texture_env_combine GL_ARB_texture_env_crossbar GL_ARB_texture_env_dot3 GL_ARB_texture_float GL_ARB_texture_mirrored_repeat GL_ARB_texture_non_power_of_two GL_ARB_texture_rectangle GL_ARB_texture_rg GL_ARB_transpose_matrix GL_ARB_vertex_array_bgra GL_ARB_vertex_blend GL_ARB_vertex_buffer_object GL_ARB_vertex_program GL_ARB_vertex_shader GL_ARB_window_pos GL_EXT_abgr GL_EXT_bgra GL_EXT_bindable_uniform GL_EXT_blend_color GL_EXT_blend_equation_separate GL_EXT_blend_func_separate GL_EXT_blend_minmax GL_EXT_blend_subtract GL_EXT_clip_volume_hint GL_EXT_debug_label GL_EXT_debug_marker GL_EXT_depth_bounds_test GL_EXT_draw_buffers2 GL_EXT_draw_range_elements GL_EXT_fog_coord GL_EXT_framebuffer_blit GL_EXT_framebuffer_multisample GL_EXT_framebuffer_object GL_EXT_framebuffer_sRGB GL_EXT_geometry_shader4 GL_EXT_gpu_program_parameters GL_EXT_gpu_shader4 GL_EXT_multi_draw_arrays 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 GL_APPLE_packed_pixels GL_APPLE_pixel_buffer GL_APPLE_rgb_422 GL_APPLE_row_bytes GL_APPLE_specular_vector GL_APPLE_texture_range GL_APPLE_transform_hint GL_APPLE_vertex_array_object GL_APPLE_vertex_array_range GL_APPLE_vertex_point_size GL_APPLE_vertex_program_evaluators GL_APPLE_ycbcr_422 GL_ATI_blend_equation_separate GL_ATI_blend_weighted_minmax GL_ATI_separate_stencil GL_ATI_texture_compression_3dc GL_ATI_texture_env_combine3 GL_ATI_texture_float GL_ATI_texture_mirror_once GL_IBM_rasterpos_clip GL_NV_blend_square GL_NV_conditional_render GL_NV_depth_clamp GL_NV_fog_distance GL_NV_light_max_exponent GL_NV_texgen_reflection GL_NV_texture_barrier GL_SGI_color_matrix GL_SGIS_generate_mipmap GL_SGIS_texture_edge_clamp GL_SGIS_texture_lod

[Francesco Russotto]

Also, state how much space you allow for Camera RAW CACHE :

100 Gb on the primari SSD Disk : 

Samsung SSD 970 EVO Plus 500GB

I work with wedding, so is a lots of images, but before the last Lightromm updates (9.x) it works fine...

[Ian Lyons]

The issue you're experiencing is one that has plagued Lightroom customers (Windows and Mac) for some considerible time.  Unfortunately, the behaviour was/is as intended. Therefore, I recommend that you submit your experiences along with system details to the following thread on Adobe's feedback forum https://feedback.photoshop.com/photoshop_family/topics/classic-cc-uses-90-cpu-during-export

While there you will see a post by Robert (Bob) Frost that contains a potential workaround for customers using windows OS

[ManiacJoe]

Exporting is a high-CPU procedure.

As a work around, you can use your OS tools to lower the priority of Lightroom to "below normal" before starting the export. This will give the "normal" priority apps and the OS more CPU to keep the computer responding more nicely while letting Lightroom still suck up all the unused CPU time.

[Tony_See]

Can you get a Mac technician to test your HDD efficiency status?

Are you exporting to an external hard drive attached to your machine?

Is your machine dedicated to Lightroom and not loaded with other software?

[Francesco Russotto]

Hi,

Samsung SSD 970 EVO Plus 500GB

SSD primary is ok : 2843MB/s 2903 MB/s, the others SSD (I've only SSD) are ok.

[dj_paige]

Disk speed should only make a trivial impact on export speed. Probably 99% or more of the time is taken up by the CPU.

[Francesco Russotto]

...yes, but it's strange..

...from LW 9.x the CPU usage in exporting is drammatic !!

[Ian Lyons]

What part of the Adobe response in thread I pointed to did you folk not undersatnd? I've copied it below for ease of access!

Rikk Flohr, Official Rep

• 6863 Posts
• 1551 Reply Likes

This behavior is expected. Changes were made in a previous version to more aggressively use CPU cores during the Export operation. Export takes priority over local operations to facilitate much faster exports.