There is 287% (42,8 -> 165,8 mb) max memory usage in WebNode.GUIMark2-Text in b41 comparing to b40.
Looks like there is some memory leak as memory constantly grows by ~10Mb on each test iteration, see log file:
 http://aurora-ds.russia.sun.com:9500/runs/11996.FX2-127/.workload.log.31277

Params to run the test:
> java -cp "..."
   jrockit.bm.Main webnodetestsuite.bm.GUIMark2Benchmark -i 20 -tr 25 -wt 5 -resource guimark2-text.html

Aurora link:
 http://aurora.russia.sun.com/performance/faces/ChessBoard.xhtml?reportName=FX2&parameters=%5Bshownbenchmarks%5D%281%3D1%29%5Brefrelease%5D2.0%5Brefbuild%5D%3D+%27235%27%5Brefjdkrelease%5D1.6.0_23%5Brelease%5D%28pr.product.productRelease+IS+NOT+NULL%29%5Bbuild%5D%28pr.product.build+%3D+%27235%27%29OR%28pr.product.build+%3D+%27245%27%29%5Bjdkrelease%5D%28jdk.product.productRelease+%3D+%271.6.0_23%27%29&splitting=%5BX+axis%5DfxConf%2C+metricName%5BComplement%5Dbenchmark%2C+jdkBuild%2C+jdk%5BZ+axis%5Dos%2C+hwclass%2C+jdkRelease%2C+benchmarkSuite%5BY+axis%5DbenchmarkName%2C+benchmarkConf%2C+fxRelease%2C+fxBuild&reference=%5BOthers%5DfxRelease%2C+fxBuild%2C+jdkRelease%2C+jdkBuild%2C+jdk%2C+benchmarkSuite%2C+benchmarkName%2C+metricName%5BReference+Set%5Dbenchmark%2C+os%2C+benchmarkConf%2C+fxConf%2C+hwclass&mixReference=false&flags=&significance=empty&hideDataConfiguration=false&calculateSummary=false&showSummaryExpanded=false&showSummaryContents=true&showComplementAttributes=false&compactTables=true&viewStyle=chessboard&filter=