We observed that in some cases (VM with few threads) CTW tests takes very long time:

 TEST: applications/ctw/modules/java_base.java
   build: 4.502 seconds
   compile: 4.496 seconds
   build: 0.876 seconds
   compile: 0.875 seconds
   driver: 1.306 seconds
   build: 3.295 seconds
   compile: 3.295 seconds
   main: 3462.04 seconds
 TEST RESULT: Passed. Execution successful
 --------------------------------------------------
 TEST: applications/ctw/modules/java_desktop.java
   build: 0.0 seconds
   build: 0.0 seconds
   driver: 0.093 seconds
   build: 0.001 seconds
   main: 3224.677 seconds
 TEST RESULT: Passed. Execution successful

We should investigate ability to split such tests similar to what we had in jdk8 by using CTW flags:

-XX:CompileTheWorldStartAt=10404 -XX:CompileTheWorldStopAt=10504