Upgrade to 2.4.1 causes slowdown

[msproul]

Version

Version 2.4.1+linux-x64-GTK3

Use About->About PrusaSlicer for release versions

For -dev versions, use git describe --tag or get the hash value for the version you downloaded or git rev-parse HEAD

Operating system type + version

Linux 5.13.0-35-generic #40~20.04.1-Ubuntu SMP Mon Mar 7 09:18:32 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux

In case of 3D rendering issues, please attach the content of menu Help -> System Info dialog
PrusaSlicer
Version: 2.4.1+linux-x64-GTK3
Build: PrusaSlicer-2.4.1+linux-x64-GTK3-202203101056

Operating System: Unix
System Architecture: 64 bit
System Version: Linux 5.13.0-35-generic x86_64
Total RAM size [MB]: 67,328MB
OpenGL installation
GL version: 3.1 Mesa 21.2.6
Vendor: Mesa/X.org
Renderer: llvmpipe (LLVM 12.0.0, 256 bits)
GLSL version: 1.40

Installed extensions:

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GL_ARB_draw_elements_base_vertex GL_ARB_draw_indirect GL_ARB_draw_instanced GL_ARB_enhanced_layouts GL_ARB_explicit_attrib_location GL_ARB_explicit_uniform_location GL_ARB_fragment_coord_conventions GL_ARB_fragment_layer_viewport GL_ARB_fragment_program GL_ARB_fragment_program_shadow GL_ARB_fragment_shader GL_ARB_framebuffer_no_attachments GL_ARB_framebuffer_object GL_ARB_framebuffer_sRGB GL_ARB_get_program_binary GL_ARB_get_texture_sub_image GL_ARB_gl_spirv GL_ARB_half_float_pixel GL_ARB_half_float_vertex GL_ARB_indirect_parameters GL_ARB_instanced_arrays GL_ARB_internalformat_query GL_ARB_internalformat_query2 GL_ARB_invalidate_subdata GL_ARB_map_buffer_alignment GL_ARB_map_buffer_range GL_ARB_multi_bind GL_ARB_multi_draw_indirect GL_ARB_multisample GL_ARB_multitexture GL_ARB_occlusion_query GL_ARB_occlusion_query2 GL_ARB_parallel_shader_compile GL_ARB_pipeline_statistics_query GL_ARB_pixel_buffer_object GL_ARB_point_parameters GL_ARB_point_sprite GL_ARB_polygon_offset_clamp 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3D printer brand / version + firmware version (if known)

PRUSA MK3S+ but the printer is not the problem

Behavior

I updated to slicer 2.4.1 and the file that I print a lot, which is 33 megs, is now dramatically slower in the slicer.
Even trying to change from "3D editor view" to "preview" takes several seconds.
The "DELETE ALL" button takes several seconds.
The weird thing is even going back to 2.4.0 it is now slower. This may have something to do with the configuration upgrade but I am not sure.
The problem appears to be with this particular file but it worked fine in previous versions.

Is this a new feature request? NO

Project File (.3MF) where problem occurs

the .3MF file is 33 megs and it would not upload. please contact me at msproul -at- skychariot.com and I will send you the file.

[lukasmatena]

If you also see the slowdown in 2.4.0 which, as you claim, worked before, it is probably not caused by a change in the software. IMHO it can either be caused by something in the configuration or for example by your system/GPU driver update or something. It is easy to rule out the configuration - just backup the configuration folder (do NOT delete it) and start slicer fresh. If the problem does not disappear, it is quite likely on your end. If it does disappear, check that it reappears after you delete the new configuration folder and replace it with the backup. Thanks.

[lukasmatena]

No response, closing. The "2.4.0 is now also slower" part indicates that the problem is not in PrusaSlicer.