View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0033437 | Community | OCCT:Modeling Algorithms | public | 2023-07-28 17:29 | 2024-03-14 19:31 |
| Reporter | PeterB | Assigned To | akaftasev | ||
| Priority | normal | Severity | major | ||
| Status | new | Resolution | open | ||
| Platform | Windows | OS | VC++ 2017 | ||
| Product Version | 7.7.1 | ||||
| Summary | 0033437: Performance issue: generating the six 2D views from small STEP file takes very long | ||||
| Description | Generating the six 2D views from small STEP file takes very long => performance issue escpecially the generation of the Front, Back, Top and Bottom views => see the output of the "STEP-to-DXF.exe" command line tool below === STEP-to-DXF.exe cmdline tool === The contained Visual Studio 17 solution exemplifies in an STEP to DXF command line tool how we use OpenCascade to read STEP files and generate the six 2D views (front, back, right, left, top, bottom) === STEP file "condenser_asm.STEP" === file size: 347 kB <<< quite small duration to generate all six 2D views: 433 sec (see below) <<< very long quite interesting model with lots of instances if SubObjects can be re-used then it is quite a simple model === OUTPUT === C:\OpenCascade\STEP-to-DXF-CmdLineTool\x64\Debug>STEP-to-DXF.exe condenser_asm.STEP STEP-to-DXF Converter v1.1.0 Beta Copyright Zuken E3 GmbH 2022-2023. All rights reserved. W-INFO: Input: 0.17 sec - "condenser_asm.STEP" W-INFO: Front: 124.27 sec - "condenser_asm.STEP--Front.dxf" W-INFO: Back: 93.71 sec - "condenser_asm.STEP--Back.dxf" W-INFO: Right: 15.56 sec - "condenser_asm.STEP--Right.dxf" W-INFO: Left: 20.37 sec - "condenser_asm.STEP--Left.dxf" W-INFO: Top: 89.43 sec - "condenser_asm.STEP--Top.dxf" W-INFO: Bottom: 89.64 sec - "condenser_asm.STEP--Bottom.dxf" Total Duration: 433.15 sec | ||||
| Steps To Reproduce | == attachments === + STEP-to-DXF-CmdLineTool.zip NOTE: contains ReadMe.txt + STEP file "condenser_asm.STEP" === reproduction === + build cmdline tools using VS 2017 + run / debug the cmdline tool with the attached STEP file | ||||
| Tags | No tags attached. | ||||
| Test case number | |||||
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attached STEP file + Visual Studio solution for performance bug reproduction / investigation condenser_asm.STEP (355,312 bytes) STEP-to-DXF-CmdLineTool.zip (10,518 bytes) |
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OpenCascade 7.8.0 slightly less performance than OCC 7.7.2: 442 sec / 433 sec = 1,02 x => OCC 7.8.0 is 2% slower than OCC 7.7.2 === HW / OS === Intel(R) Core(TM) i9-10980XE CPU @ 3.00 GHz 64bit Windows 11 === OpenCascade 7.7.2 === STEP-to-DXF Converter v1.1.1 Beta Copyright Zuken E3 GmbH 2022-2024. All rights reserved. W-INFO: Input: 0.16 sec - "D:\Perforce\external\OpenCascade\STEP-to-DXF-CmdLineTool\STEP-Files\condenser_asm.STEP" W-INFO: Front: 125.33 sec - "D:\Perforce\external\OpenCascade\STEP-to-DXF-CmdLineTool\STEP-Files\condenser_asm.STEP--Front.dxf" W-INFO: Back: 92.47 sec - "D:\Perforce\external\OpenCascade\STEP-to-DXF-CmdLineTool\STEP-Files\condenser_asm.STEP--Back.dxf" W-INFO: Right: 16.35 sec - "D:\Perforce\external\OpenCascade\STEP-to-DXF-CmdLineTool\STEP-Files\condenser_asm.STEP--Right.dxf" W-INFO: Left: 22.25 sec - "D:\Perforce\external\OpenCascade\STEP-to-DXF-CmdLineTool\STEP-Files\condenser_asm.STEP--Left.dxf" W-INFO: Top: 88.48 sec - "D:\Perforce\external\OpenCascade\STEP-to-DXF-CmdLineTool\STEP-Files\condenser_asm.STEP--Top.dxf" W-INFO: Bottom: 88.07 sec - "D:\Perforce\external\OpenCascade\STEP-to-DXF-CmdLineTool\STEP-Files\condenser_asm.STEP--Bottom.dxf" Total Duration: 433.13 sec === OpenCascade 7.8.0 === STEP-to-DXF Converter v1.1.1 Beta Copyright Zuken E3 GmbH 2022-2024. All rights reserved. W-INFO: Input: 0.12 sec - "C:\Test\STEP-Files\condenser_asm.STEP" W-INFO: Front: 128.30 sec - "C:\Test\STEP-Files\condenser_asm.STEP--Front.dxf" W-INFO: Back: 92.84 sec - "C:\Test\STEP-Files\condenser_asm.STEP--Back.dxf" W-INFO: Right: 17.14 sec - "C:\Test\STEP-Files\condenser_asm.STEP--Right.dxf" W-INFO: Left: 23.93 sec - "C:\Test\STEP-Files\condenser_asm.STEP--Left.dxf" W-INFO: Top: 90.10 sec - "C:\Test\STEP-Files\condenser_asm.STEP--Top.dxf" W-INFO: Bottom: 89.55 sec - "C:\Test\STEP-Files\condenser_asm.STEP--Bottom.dxf" Total Duration: 441.99 sec |
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2023-07-28 17:29 | PeterB | New Issue | |
| 2023-07-28 17:29 | PeterB | Assigned To | => oan |
| 2023-07-28 17:55 | PeterB | Note Added: 0113806 | |
| 2023-07-28 17:55 | PeterB | File Added: condenser_asm.STEP | |
| 2023-07-28 17:55 | PeterB | File Added: STEP-to-DXF-CmdLineTool.zip | |
| 2023-08-01 15:33 | dpasukhi | Assigned To | oan => akaftasev |
| 2024-03-14 19:31 | PeterB | Note Added: 0115371 |
