Mon, 19 Aug 2019 10:11:31 +0200
8229401: Fix JFR code cache test failures
8223689: Add JFR Thread Sampling Support
8223690: Add JFR BiasedLock Event Support
8223691: Add JFR G1 Region Type Change Event Support
8223692: Add JFR G1 Heap Summary Event Support
Summary: Backport JFR from JDK11, additional fixes
Reviewed-by: neugens, apetushkov
Contributed-by: denghui.ddh@alibaba-inc.com
1 -Xmixed mixed mode execution (default)
2 -Xint interpreted mode execution only
3 -Xbootclasspath:<directories and zip/jar files separated by ;>
4 set search path for bootstrap classes and resources
5 -Xbootclasspath/a:<directories and zip/jar files separated by ;>
6 append to end of bootstrap class path
7 -Xbootclasspath/p:<directories and zip/jar files separated by ;>
8 prepend in front of bootstrap class path
9 -Xnoclassgc disable class garbage collection
10 -Xincgc enable incremental garbage collection
11 -Xloggc:<file> log GC status to a file with time stamps
12 -Xbatch disable background compilation
13 -Xms<size> set initial Java heap size
14 -Xmx<size> set maximum Java heap size
15 -Xss<size> set java thread stack size
16 -Xprof output cpu profiling data
17 -Xfuture enable strictest checks, anticipating future default
18 -Xrs reduce use of OS signals by Java/VM (see documentation)
19 -Xcheck:jni perform additional checks for JNI functions
20 -Xshare:off do not attempt to use shared class data
21 -Xshare:auto use shared class data if possible (default)
22 -Xshare:on require using shared class data, otherwise fail.
24 The -X options are non-standard and subject to change without notice.