From: Chris Braddock (smapdi636@hotmail.com)
Date: Mon Sep 15 2003 - 09:59:40 PDT
>Chris,
>
>I see no options to turn off the JIT and as you can see it is enabled by
>default.
>I therefore have no explanation for the symptom you are experiencing.
>Sorry.
>
>Werner.
Thanks anyway Werner.
Chris
>Chris Braddock wrote:
>>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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>
>--
>Werner Donné -- Re BVBA
>Engelbeekstraat 8
>B-3300 Tienen
>tel: (+32) 486 425803 e-mail: werner.donne@re.be
>
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