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7051430: CMS: ongoing CMS cycle should terminate abruptly to allow prompt JVM termination at exit

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It turns out that there is no need to explicitly stop CMS since the JVM is taken down at a terminal safepoint during which CMS threads are (terminally) inactive. This  will need to be revised if and when we evolve in the future to a point where we allow JVM reincarnation in the same process, but those changes will be much more sweeping than just terminating CMS threads. The unused ::stop() methods will be removed in a separate CR. Also include in this CR is the fix for a small typo in the spelling of UseGCLogFileRotation in a message in arguments.cpp, brought to our attention by Rainer Jung and reviewed by minqi.

Reviewed-by: johnc, jwilhelm
This commit is contained in:
Y. Srinivas Ramakrishna 2011-06-13 09:58:16 -07:00
parent f79196c54c
commit 9ca97e4c78
3 changed files with 13 additions and 7 deletions
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2
hotspot/src/share/vm/runtime/arguments.cpp
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@ -1690,7 +1690,7 @@ void check_gclog_consistency() {
(NumberOfGCLogFiles == 0) ||
(GCLogFileSize == 0)) {
jio_fprintf(defaultStream::output_stream(),
"To enable GC log rotation, use -Xloggc:<filename> -XX:+UseGCLogRotaion -XX:NumberOfGCLogFiles=<num_of_files> -XX:GCLogFileSize=<num_of_size>\n"
"To enable GC log rotation, use -Xloggc:<filename> -XX:+UseGCLogFileRotation -XX:NumberOfGCLogFiles=<num_of_files> -XX:GCLogFileSize=<num_of_size>\n"
"where num_of_file > 0 and num_of_size > 0\n"
"GC log rotation is turned off\n");
UseGCLogFileRotation = false;