1.1 --- a/src/share/vm/runtime/globals.hpp Tue Oct 12 10:57:33 2010 -0400
1.2 +++ b/src/share/vm/runtime/globals.hpp Wed Oct 13 11:46:46 2010 -0400
1.3 @@ -273,6 +273,10 @@
1.4 // UnlockExperimentalVMOptions flag, which allows the control and
1.5 // modification of the experimental flags.
1.6 //
1.7 +// Nota bene: neither diagnostic nor experimental options should be used casually,
1.8 +// and they are not supported on production loads, except under explicit
1.9 +// direction from support engineers.
1.10 +//
1.11 // manageable flags are writeable external product flags.
1.12 // They are dynamically writeable through the JDK management interface
1.13 // (com.sun.management.HotSpotDiagnosticMXBean API) and also through JConsole.
1.14 @@ -634,6 +638,9 @@
1.15 develop(bool, ZapJNIHandleArea, trueInDebug, \
1.16 "Zap freed JNI handle space with 0xFEFEFEFE") \
1.17 \
1.18 + notproduct(bool, ZapStackSegments, trueInDebug, \
1.19 + "Zap allocated/freed Stack segments with 0xFADFADED") \
1.20 + \
1.21 develop(bool, ZapUnusedHeapArea, trueInDebug, \
1.22 "Zap unused heap space with 0xBAADBABE") \
1.23 \
1.24 @@ -1802,17 +1809,17 @@
1.25 develop(uintx, PromotionFailureALotInterval, 5, \
1.26 "Total collections between promotion failures alot") \
1.27 \
1.28 - develop(intx, WorkStealingSleepMillis, 1, \
1.29 + experimental(intx, WorkStealingSleepMillis, 1, \
1.30 "Sleep time when sleep is used for yields") \
1.31 \
1.32 - develop(uintx, WorkStealingYieldsBeforeSleep, 1000, \
1.33 + experimental(uintx, WorkStealingYieldsBeforeSleep, 1000, \
1.34 "Number of yields before a sleep is done during workstealing") \
1.35 \
1.36 - develop(uintx, WorkStealingHardSpins, 4096, \
1.37 + experimental(uintx, WorkStealingHardSpins, 4096, \
1.38 "Number of iterations in a spin loop between checks on " \
1.39 "time out of hard spin") \
1.40 \
1.41 - develop(uintx, WorkStealingSpinToYieldRatio, 10, \
1.42 + experimental(uintx, WorkStealingSpinToYieldRatio, 10, \
1.43 "Ratio of hard spins to calls to yield") \
1.44 \
1.45 product(uintx, PreserveMarkStackSize, 1024, \
