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Dafe's measurements - testing conditions: PC Dell Pentium III, 600Mhz, 512 MB memory, JDK 1.4.1, Netbeans Main trunk build, mounted sampledir local filesystem, opened 8 java source files, 3 plain text files. times in milliseconds. action: close java source, new active is another java source: 547, 438, ?1860?, 609, 593 action: close plain text, new active is text: 203, 282 target: should react in 100ms further observations: performance was reported to be even worse when data in editor are modified. candidates for speedup: operations on tabbed pane in core/winsys, removeNotify and paint in editor module.
Dafe I have filed this issue already, sorry :) I am copy your comments to issue 28933 *** This issue has been marked as a duplicate of 28933 ***
*** This issue has been marked as a duplicate of 28933 ***
issue doesn't apply to new window system - verified