There is 46% (6 fps) regression in Controls.Stock-adhoc-series6 appeared in graphics-scrum build #2691.
Results for:
b2690: 13.23 fps
b2692: 7.11 fps

There are no b2691 build available. But b2692 contains only one fix:
   RT-16017: Security excption while running Brickbreaker in applet mode (detail)

while b2691 was merged with master and contains bunch of other fixes.
So, it is more likely the regression was introduced in b2691.

Steps to run benchmark:
> cd tests/performance/Charts
> ant
> java -cp "${JFX}/rt/lib/jfxrt.jar;../../../import/benchmarks-2.1.1/benchmarks-2.1.1.jar;../FXBenchmark/dist/FXBenchmark.jar;./dist/Charts.jar"
   jrockit.bm.Main charts.bm.StockBenchmark -i 3 -wt 5 -tr 15 series 6