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Computadores - HP Integrity NonStop H-Series (16.73 mb)
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Facilidade de uso
HP Extensions to NonStandard Java Options
-Xabend
Turns on the abend option to abort the process instead of exiting with a non-zero exit
code. If the NonStop Server for Java 5 application is run as a Pathway server, you can
enable this option to alert Pathmon to restart the server after the NonStop Server for
Java 5 application dies.
-XX:GuaranteeFreeHeapSizeAfterGC=
Prevents excessive garbage collection (GC) activity in Java applications that have not
been tuned well with respect to GC. If the application uses almost all of the memory heap
and the Java virtual machine is unable to collect much garbage, excessive GC activity
might occur to satisfy the demand for allocation of new objects. This activity may result
in a busy CPU in which the Java application is executing. To prevent this occurrence, use
the -XX:GuaranteeFreeHeapSizeAfterGC=
virtual machine cannot free the heap size more than the value specified with the
GuaranteeFreeHeapSizeAfterGC option, the Java virtual machine throws an
OutOfMemoryError.
-XX:+ForceStopableMode
Forces the Java process stop mode to 1 (stoppable) when a Java thread transitions to
native state.
Under certain rare conditions, the Java Virtual Machine (JVM) can incorrectly be running
in unstoppable mode, which can result in a processor halt if the JVM process hits a trap
or exception.
Normally, the process stop mode is set to unstoppable by privileged code when the code
is run, and set back to stoppable mode on exit to the calling routine. While Java itself
does not run in
privileged mode when executing Java bytecodes, Java application code as well as the
JVM can make calls to native code or system APIs that run privileged code. If any of
these privileged routines do not reset the stop mode on exit, it can result in a processor
halt if a trap occurs. Enable this flag to avoid a processor halt in case the stop mode has
been set incorrectly by privileged code. Some applications may see performance
degradation when this flag is enabled.
See Also:
javac
q
jdb
q
javah
q
jar
q
...
Computadores - HP Integrity NonStop J-Series (115.94 kb)