From: Chris Braddock (smapdi636@hotmail.com)
Date: Mon Sep 15 2003 - 08:02:09 PDT
Thanks Werner. Here's some info:
# /usr/java130/bin/java
Usage: java [-options] class [args...]
(to execute a class)
or java -jar [-options] jarfile [args...]
(to execute a jar file)
where options include:
-cp -classpath <directories and zip/jar files separated by :>
set search path for application classes and resources
-D<name>=<value>
set a system property
-verbose[:class|gc|jni]
enable verbose output
-version print product version
-showversion print product version and continue
-? -help print this help message
-X print help on non-standard options
# /usr/java130/bin/java -X
-Xbootclasspath:<directories and zip/jar files separated by ;>
set search path for bootstrap classes and resources
-Xbootclasspath/a:<directories and zip/jar files separated by ;>
append to end of bootstrap class path
-Xbootclasspath/p:<directories and zip/jar files separated by ;>
prepend in front of bootstrap class path
-Xnoclassgc disable class garbage collection
-Xms<size> set initial Java heap size
-Xmx<size> set maximum Java heap size
-Xss<size> set the maximum native stack size for any thread
-Xos<size> set the maximum Java stack size for any thread
-Xrs reduce the use of OS signals
-Xcheck:jni perform additional checks for JNI functions
-Xcheck:nabounds perform additional checks for JNI array operations
-Xrunhprof[:help]|[:<option>=<value>, ...]
perform heap, cpu, or monitor profiling
-Xdebug enable remote debugging
-Xfuture enable strictest checks, anticipating future default
The -X options are non-standard and subject to change without notice.
#
# /usr/java130/bin/java -version
java version "1.3.0"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.3.0)
Classic VM (build 1.3.0, J2RE 1.3.0 IBM build ca130-20020504 (JIT enabled:
jitc)
)
#
>Chris,
>
>The only error I see is that strictly speaking "-Xmx400mb" should be
>"-Xmx400m",
>but I fail to see how that could affect JIT settings. The only way I know
>in JDK1.3
>to turn of the JIT is with the option -Xint. By default the client HotSpot
>JIT is
>active.
>
>All this is of course about the Sun JRE. I think you use the one from IBM.
>Could you
>therefore send the usage string of the java command?
>
>Werner.
>
>Chris Braddock wrote:
>>>Chris,
>>>
>>>What is the complete command-line you use?
>>>
>>>Werner.
>>
>>
>>
>>Werner,
>>
>>I use a modified xep.sh. I had a bootstrap classpath problem that
>>prompted the -Xbootclasspath addition.
>>
>>#begin xep.sh
>># This script encapsulates a standard XEP call.
>>
>>JAVA_HOME=/usr/java130/jre
>>
>>XEP_HOME=/usr/dbx/weblive/XEP
>>
>>CP=$XEP_HOME/lib/xep342_trial.jar:$XEP_HOME/lib/cryptix32.jar:$XEP_HOME/lib/cryp
>>
>>tix32-pgp.jar:$XEP_HOME/lib/saxon.jar:$XEP_HOME/lib/xt.jar
>>
>>$JAVA_HOME/bin/java -Xmx400mb
>>-Xbootclasspath/p:/usr/dbx/weblive/XEP/lib/saxon.j
>>ar -classpath $CP -Dcom.renderx.xep.ROOT=$XEP_HOME
>>com.renderx.xep.XSLDriver $*
>>
>>
>>set CP=
>>#end xep.sh
>>
>>Thanks,
>>
>>Chris
>>
>>
>>
>>>Chris Braddock wrote:
>>>
>>>>Anyone?
>>>>
>>>>>Wondering if anyone can help with this error:
>>>>>
>>>>>#Warning: JIT compiler "off" not found. Will use interpreter.
>>>>>
>>>>>XEP still performs as expected, however I'm not a Unix or Java guy, but
>>>>>as I understand it, a JIT compiler should give a performance boost to
>>>>>(the XEP) java code. If this is correct, I'd definitely like to take
>>>>>advantage of it.
>>>>>
>>>>>Opsys is Aix 4.3.
>>>>>Java 1.3.0
>>>>>
>>>>>Thanks
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This archive was generated by hypermail 2.1.5 : Mon Sep 15 2003 - 08:06:25 PDT