View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0023069 | Open CASCADE | OCCT:Visualization | public | 2012-04-04 17:53 | 2012-10-02 14:58 |
| Reporter | kgv | Assigned To | kgv | ||
| Priority | normal | Severity | minor | ||
| Status | closed | Resolution | fixed | ||
| Platform | A | OS | L | ||
| Product Version | 6.5.3 | ||||
| Target Version | 6.5.3 | Fixed in Version | 6.5.3 | ||
| Summary | 0023069: OpenGL state extraction for GL_RENDER_MODE significantly impact performance | ||||
| Description | Currently GL_RENDER_MODE checked in TKOpenGl routines (text rendering, primitive arrays rendering, markers rendering) to perform special code for gl2ps export. This is determined that these OpenGL state extractions per rendered object significantly impact overall rendering performance - make it more CPU-bound. Because gl2ps export is still desired this is suggested to cache GL_RENDER_MODE state at frame redrawing beginning. | ||||
| Steps To Reproduce | To reproduce problem this is required to render number of simple objects to reach CPU performance limit on current station. Commenting out 'glGetIntegerv (GL_RENDER_MODE, &renderMode);' calls reduce CPU usage. On tested platform (Windows 7, GeForce GT240) CPU-limit reached within 1k boxes: pload VISUALIZATION pload MODELING vinit for {set anInter 1} {$anInter <= 1000} {incr anInter} {box b${anInter} [expr $anInter * 20] 0 0 10 20 30; vdisplay b${anInter}; } vfit vfps Notice that this script requires vfps command introduced by #23065. The actual results are current OCCT version: FPS: 40.961348099055449 CPU: 26.988172999999982 msec Commented GL_RENDER_MODE calls: FPS: 59.906130822034626 CPU: 17.472111999999989 msec | ||||
| Tags | No tags attached. | ||||
| Test case number | chl 934 Y9 | ||||
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Patch is ready for review in branch CR23069. Please notice that text rendering functionality leaved untouched due to different design (should be fixed within text rendering total reworking). |
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CR23069 reviewed without remarks, ready for testing. |
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2012-04-09 15:57 tester |
Y9 (1,855 bytes) |
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Dear BugMaster, Workbench KAS:dev:mkv-23069-occt was created from git branch CR23069 (and mkv-23069-products from svn trunk) and compiled on Linux platform. Test case for this bug is chl/934/Y9. It is OK. There are not regressions in mkv-23069-products regarding to KAS:dev:products-20120330-opt See results in /QADisk/occttests/results/KAS/dev/mkv-23069-products_06042012/lin See reference results in /QADisk/occttests/results/KAS/dev/products-20120330-opt_30032012/lin See test cases in /QADisk/occttests/tests/ED N.B. In order to launch testing case you can make use the following instructions http://doc/doku.php?id=occt:certification |
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occt: master 664cae74 2012-04-12 08:25:07 Details Diff |
0023069: Cache GL_FEEDBACK mode per frame in TKOpenGl calls |
Affected Issues 0023069 |
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| mod - src/OpenGl/OpenGl_Context.cxx | Diff File | ||
| mod - src/OpenGl/OpenGl_Context.hxx | Diff File | ||
| mod - src/OpenGl/OpenGl_Marker.cxx | Diff File | ||
| mod - src/OpenGl/OpenGl_MarkerSet.cxx | Diff File | ||
| mod - src/OpenGl/OpenGl_PrimitiveArray.cxx | Diff File | ||
| mod - src/OpenGl/OpenGl_Workspace_4.cxx | Diff File | ||
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2012-04-04 17:53 | kgv | New Issue | |
| 2012-04-04 17:53 | kgv | Assigned To | => san |
| 2012-04-06 12:31 | kgv | Assigned To | san => kgv |
| 2012-04-06 12:33 | kgv | Note Added: 0020288 | |
| 2012-04-06 12:33 | kgv | Assigned To | kgv => san |
| 2012-04-06 12:33 | kgv | Status | new => resolved |
| 2012-04-06 17:07 |
|
Note Added: 0020295 | |
| 2012-04-06 17:07 |
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Assigned To | san => bugmaster |
| 2012-04-06 17:07 |
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Status | resolved => reviewed |
| 2012-04-06 17:54 |
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Assigned To | bugmaster => mkv |
| 2012-04-09 15:57 |
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File Added: Y9 | |
| 2012-04-09 15:59 |
|
Note Added: 0020310 | |
| 2012-04-09 16:00 |
|
Test case number | => chl 934 Y9 |
| 2012-04-09 16:00 |
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Assigned To | mkv => bugmaster |
| 2012-04-09 16:00 |
|
Status | reviewed => tested |
| 2012-04-11 09:43 |
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Target Version | 6.5.4 => 6.5.3 |
| 2012-04-13 11:32 | kgv | Changeset attached | => occt master 664cae74 |
| 2012-04-13 11:33 | kgv | Assigned To | bugmaster => kgv |
| 2012-04-13 11:33 | kgv | Status | tested => verified |
| 2012-04-13 11:33 | kgv | Resolution | open => fixed |
| 2012-10-02 14:58 | Pawel | Relationship added | related to 0023457 |
