Controls.ListView-Rotate performance benchmark reports 0 fps in latest promoted fx2.1-b08 build.
This benchmark is simply not able to handle even one pulse and finally it is not able to complete.

The benchmark is run with following arguments:
 jrockit.bm.Main controls.bm.ListViewBenchmark -i 20 -wt 5 -tr 15 -cells 10000 -mode rotate -keysPerInjection 100


Running the same benchmark with less number of cells shows the following performance difference comparing to b07:
> java -cp "..." -Djavafx.animation.fullspeed=true
  jrockit.bm.Main controls.bm.ListViewBenchmark -i 20 -wt 0 -tr 30 -cells 1000 -mode rotate -keysPerInjection 10

b07: 195 fps
b08: 0.96 fps

JPA profile shows the following difference:
=== b07 ===
 7.041 controls.ListViewTest.run()
       6.308 com.sun.javafx.collections.ObservableListWrapper.remove(int)
       0.723 com.sun.javafx.collections.ObservableListWrapper.add(java.lang.Object)

=== b08 ===
32.034 controls.ListViewTest.run()
       16.088 com.sun.javafx.collections.ObservableListWrapper.remove(int)
       15.942 com.sun.javafx.collections.ObservableListWrapper.add(java.lang.Object)


If we look at com.sun.javafx.collections.ObservableListWrapper.add we will see that the time spent in
com.sun.javafx.scene.control.behavior.ListViewBehavior$1.onChanged() has been increased from
0.017 sec to 31.919 sec.

Here are related ListViewBehavior.java went into b08:

diff -r 38665fd4d922 -r 2351e0099f49 javafx-ui-controls/src/com/sun/javafx/scene/control/behavior/ListViewBehavior.java
--- a/javafx-ui-controls/src/com/sun/javafx/scene/control/behavior/ListViewBehavior.java Wed Jan 04 16:01:21 2012 +1000
+++ b/javafx-ui-controls/src/com/sun/javafx/scene/control/behavior/ListViewBehavior.java Tue Jan 10 21:16:06 2012 +1300

@@ -247,8 +247,22 @@

         @Override public void onChanged(ListChangeListener.Change c) {
             while (c.next()) {
                 // there are no selected items, so lets clear out the anchor
- if (! selectionChanging && c.getList().isEmpty()) {
- setAnchor(-1);
+ if (! selectionChanging) {
+ if (c.getList().isEmpty()) {
+ setAnchor(-1);
+ } else if (! c.getList().contains(getAnchor())) {
+ setAnchor(-1);
+ }
+ }
+
+ if (! hasAnchor() && c.getAddedSize() > 0) {
+ for (int i = 0; i < c.getAddedSize(); i++) {
+ int index = ((List<Integer>)c.getAddedSubList()).get(i);
+ if (index >= 0) {
+ setAnchor(index);
+ break;
+ }
+ }
                 }
             }
         }

See more changes in fx2.1 workspace.