PR# 10908 Estudio keeps using 40% of one CPU after turning on physics in Diagram tab

Problem Report Summary
Submitter: prestoat2000
Category: EiffelStudio
Priority: Medium
Date: 2006/08/08
Class: Bug
Severity: Serious
Number: 10908
Release: 5.7.62110
Confidential: No
Status: Suspended
Responsible: manus_eiffel
Environment: Mozilla/5.0 (X11; U; SunOS sun4u; en-US; rv:1.7.10) Gecko/20050726 Firefox/1.0.6 Solaris 9 on SPARC
Synopsis: Estudio keeps using 40% of one CPU after turning on physics in Diagram tab

Description
Compile with trivial root class TEST and precompiled EiffelBase.
Drag TEST into Context window.  Select Diagram tab.  Turn off
Physics if on.  Bring up Physics Settings window and set all parameters
to 0%.  Close it.  Drag cluster `base' into Target to Cluster hole.
Diagrams it.  Turn on physics.  Estudio keeps using about 20% of
the CPU (40% of one CPU on dual CPU machine), indefinitely as far
as I can tell.
To Reproduce

										

									

								

							

						

					

				

			

		

	









	

		

			
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											From:manus_eiffel   
											Date:2007/05/31   
																							Status: Suspended   
											
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Turning on physics is very CPU demanding, especially if the diagram never stabilizes which is the case when using 0 for all settings and having non-compiled classes in the system.

I'm leaving this bug suspended because there is not much we can do now.

											
											
											

											
										

									

								

							

							
							

								

									
									
										

											

									
											From:prestoat2000   
											Date:2006/08/08   
											
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Attachments for problem report #10908

											
											
											

											
											

												

													

														

															Attachment:
															test.e    
															Size:166
														

													

												

											

											
											

												

													

														

															Attachment:
															test.ecf    
															Size:1165