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Bug 114320

Summary:	Investigate performance depreciation in opening GEF editor
Product:	[Tools] GEF	Reporter:	Pratik Shah <ppshah>
Component:	GEF-Legacy GEF (MVC)	Assignee:	Pratik Shah <ppshah>
Status:	RESOLVED FIXED	QA Contact:
Severity:	normal
Priority:	P3	CC:	billy.biggs, hudsonr
Version:	3.2	Keywords:	helpwanted
Target Milestone:	3.2.0 (Callisto) M4
Hardware:	PC
OS:	All
Whiteboard:

Description Pratik Shah

2005-10-30 19:13:49 EST

Opening the logic editor has slowed down considerably in 3.2 builds as 
compared to 3.1, as is shown here:

http://download.eclipse.org/tools/gef/downloads/drops/I-I20051027-
200510271321/performance/org.eclipse.gef.php

The logic editor uses anti-aliased connections which requires Cairo.  Since 
there is no such problem on Windows, this could be because Eclipse 3.2 uses 
Cairo 1.0, whereas 3.1 used Cairo 0.4.  However, I couldn't reproduce the 
problem with my initial, crude SWT snippet that just drew anti-aliased 
polylines.

Comment 1 Pratik Shah

2005-12-20 14:41:36 EST

This happens on Windows as well.  It's dependent on the state of the test machine's screen.  I haven't seen exactly how all states affect things, but having the screen blanked out certainly improves the results.  Now I don't have any screensavers or screen-blanking and the results are consistent.  To get rid of the misleading drop in performance, we'd have to re-run the 3.1 tests.

Comment 2 Pratik Shah

2006-01-23 18:32:27 EST

Now that the tests are moving to a new machine, they'll be re-run.  Marking as fixed.