http://wiki.logicaldoc.com/wiki/index.php?title=Java_Options&feed=atom&action=history
Java Options - Revision history
2024-03-29T07:37:09Z
Revision history for this page on the wiki
MediaWiki 1.32.2
http://wiki.logicaldoc.com/wiki/index.php?title=Java_Options&diff=1833&oldid=prev
Car031: /* JVM 1.5 - J2SE 5 */
2012-08-29T06:17:26Z
<p><span dir="auto"><span class="autocomment">JVM 1.5 - J2SE 5</span></span></p>
<table class="diff diff-contentalign-left" data-mw="interface">
<col class="diff-marker" />
<col class="diff-content" />
<col class="diff-marker" />
<col class="diff-content" />
<tr class="diff-title" lang="en">
<td colspan="2" style="background-color: #fff; color: #222; text-align: center;">← Older revision</td>
<td colspan="2" style="background-color: #fff; color: #222; text-align: center;">Revision as of 06:17, 29 August 2012</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l40" >Line 40:</td>
<td colspan="2" class="diff-lineno">Line 40:</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Should therefore be careful when using these options on a JVM 1.6.<br>For the latest list of available options for the J2SE 6.0 refer to the following documentation:<br> </div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Should therefore be careful when using these options on a JVM 1.6.<br>For the latest list of available options for the J2SE 6.0 refer to the following documentation:<br> </div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;"></del></div></td><td colspan="2"> </td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">=== JVM 1.5 - J2SE 5 ===</del></div></td><td colspan="2"> </td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;"></del></div></td><td colspan="2"> </td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">A Collection of JVM Options<br>[http://blogs.sun.com/watt/resource/jvm-options-list.html http://blogs.sun.com/watt/resource/jvm-options-list.html]<br>Tuning Garbage Collection with the 5.0 Java[tm] Virtual Machine<br>[http://java.sun.com/docs/hotspot/gc5.0/gc_tuning_5.html http://java.sun.com/docs/hotspot/gc5.0/gc_tuning_5.html]<br>tagtraum industries incorporated ~ GCViewer VMFlags<br>[http://www.tagtraum.com/gcviewer-vmflags.html http://www.tagtraum.com/gcviewer-vmflags.html]<br>[http://gregluck.com/blog/archives/2006/07/how-we-solved-our-garbage-collection-pausing-problem/ http://gregluck.com/blog/archives/2006/07/how-we-solved-our-garbage-collection-pausing-problem/]<br>[http://www.theserverside.com/news/thread.tss?thread_id=41258 http://www.theserverside.com/news/thread.tss?thread_id=41258]<br> </del></div></td><td colspan="2"> </td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>=== JVM 1.6 - J2SE 6 ===</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>=== JVM 1.6 - J2SE 6 ===</div></td></tr>
</table>
Car031
http://wiki.logicaldoc.com/wiki/index.php?title=Java_Options&diff=1146&oldid=prev
Blucecio at 12:05, 25 January 2010
2010-01-25T12:05:19Z
<p></p>
<p><b>New page</b></p><div>If you launch from a shell the command: java -? <br>this will return the list of available options for the command. <br />
<br />
By running the command: java -X<br>instead will be shown a list of non-standard options.<br>Note: This list may vary from version to version of Java and is subject to change (between versions) without warning or notice. <br />
<br />
Options that are specified with -XX are not stable and are not recommended for casual use. <br>These options are subject to change without notice. <br />
<br />
{| cellspacing="1" cellpadding="1" border="1" style="width: 671px; height: 240px;"<br />
|-<br />
| -Xmx900m <br> <br />
| maximum Java heap size (900 megabytes)<br><br />
|-<br />
| -XX:MaxPermSize=384m<br> <br />
| maximum Size of the Permanent Generation (384 megabytes)<br><br />
|-<br />
| -Xms512m<br> <br />
| initial Java heap size<br><br />
|-<br />
| -XX:MaxNewSize=24m<br> <br />
| Maximum size of new generation<br><br />
|-<br />
| -XX:NewSize=24m<br> <br />
| Default size of new generation <br><br />
|-<br />
| -XX:+UseParNewGC<br> <br />
| Parallel Young Generation garbage collector (for multiprocessor machines)<br><br />
|-<br />
| -XX:+CMSParallelRemarkEnabled<br> <br />
| Attempt to descrease remark pauses when used with -XX:+UseParNewGC<br><br />
|-<br />
| -XX:+UseConcMarkSweepGC<br> <br />
| Enable the concurrent low pause collector <br><br />
|-<br />
| -Dorg.apache.el.parser.COERCE_TO_ZERO=false <br> <br />
| If true, when coercing expressions to numbers "" and null will be coerced to zero as required by the specification. If not specified, the default value of true will be used.<br><br />
|}<br />
<br />
<br> <br />
<br />
Note: Many of the options presented are related to JVM 1.4 in particular, refer to the following URLs:<br>[http://java.sun.com/docs/hotspot/gc1.4.2/faq.html http://java.sun.com/docs/hotspot/gc1.4.2/faq.html]<br>[http://www.petefreitag.com/articles/gctuning/ http://www.petefreitag.com/articles/gctuning/] <br />
<br />
Should therefore be careful when using these options on a JVM 1.6.<br>For the latest list of available options for the J2SE 6.0 refer to the following documentation:<br> <br />
<br />
=== JVM 1.5 - J2SE 5 ===<br />
<br />
A Collection of JVM Options<br>[http://blogs.sun.com/watt/resource/jvm-options-list.html http://blogs.sun.com/watt/resource/jvm-options-list.html]<br>Tuning Garbage Collection with the 5.0 Java[tm] Virtual Machine<br>[http://java.sun.com/docs/hotspot/gc5.0/gc_tuning_5.html http://java.sun.com/docs/hotspot/gc5.0/gc_tuning_5.html]<br>tagtraum industries incorporated ~ GCViewer VMFlags<br>[http://www.tagtraum.com/gcviewer-vmflags.html http://www.tagtraum.com/gcviewer-vmflags.html]<br>[http://gregluck.com/blog/archives/2006/07/how-we-solved-our-garbage-collection-pausing-problem/ http://gregluck.com/blog/archives/2006/07/how-we-solved-our-garbage-collection-pausing-problem/]<br>[http://www.theserverside.com/news/thread.tss?thread_id=41258 http://www.theserverside.com/news/thread.tss?thread_id=41258]<br> <br />
<br />
=== JVM 1.6 - J2SE 6 ===<br />
<br />
Java HotSpot VM Options<br>[http://java.sun.com/javase/technologies/hotspot/vmoptions.jsp http://java.sun.com/javase/technologies/hotspot/vmoptions.jsp]<br>Java SE 6 HotSpot[tm] Virtual Machine Garbage Collection Tuning<br>[http://java.sun.com/javase/technologies/hotspot/gc/gc_tuning_6.html http://java.sun.com/javase/technologies/hotspot/gc/gc_tuning_6.html]<br>[http://java.sun.com/performance/reference/whitepapers/6_performance.html http://java.sun.com/performance/reference/whitepapers/6_performance.html] <br />
<br />
[http://collab.sakaiproject.org/pipermail/sakai-dev/2009-September/003682.html http://collab.sakaiproject.org/pipermail/sakai-dev/2009-September/003682.html]<br> <br />
<br />
<br><br />
<br />
<br></div>
Blucecio