Alacrity runs show a 3 to 5% regression in SwingMark that was introduced in build 16. http://alacrity.sfbay/automated/1.5.0b16/

Running one of the subbenchmarks (SliderTest, showing the largest regression) with -Xprof on Windows, shows that it's spending 13% more time in method java.awt.EventQueue.postEventPrivate.

On Linux (role.sfbay) and Solaris sparc, -Xprof shows 10% more time being spent in native code called by sun.awt.motif.MToolkit.run in the AWT-EventQueue-0 thread.