[Performance Tuning] - How to confirm JVM Settings
Santy Avinash <[email protected]> Wed, 21 Aug 2013 02:49:49 -0400
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Santy Avinash [https://community.jboss.org/people/pandes3] created the disc=
ussion
"How to confirm JVM Settings"
To view the discussion, visit: https://community.jboss.org/message/833306#8=
33306
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Hi,
Needed some help here (Jboss AS 7.1, RHEL 6)
I have updated the java options in standalone.conf file=20
JAVA_OPTS=3D"-Xms2048m -Xmx2048m -XX:MaxPermSize=3D512m -XX:ThreadStackSize=
=3D128"
restarted the Jboss
Now need to confirm the settings have effecctively updated, I run the follo=
wing command "java -XshowSettings:all" , below is the output
VM settings:
=C2=A0=C2=A0=C2=A0 Stack Size: 1.00M
=C2=A0=C2=A0=C2=A0 Max. Heap Size (Estimated): 1.71G
=C2=A0=C2=A0=C2=A0 Ergonomics Machine Class: server
=C2=A0=C2=A0=C2=A0 Using VM: Java HotSpot(TM) 64-Bit Server VM
The stack size still it is showin as 1 MB and heap size as 1.71 G.
why the settings have not been updated ? Am I looking at right place (java =
-XshowSettings:all) ?
Help will be most appreciated
Regards
Avinash
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How to confirm JVM Settings
</h3>
<span style=3D"margin-bottom: 10px;">
created by <a href=3D"https://community.jboss.org/people/pandes3">Santy=
Avinash</a> in <i>Performance Tuning</i> - <a href=3D"https://community.jb=
oss.org/message/833306#833306">View the full discussion</a>
</span>
<hr style=3D"margin: 20px 0; border: none; background-color: #dadada; heigh=
t: 1px;">
<div class=3D"jive-rendered-content"><p>Hi,</p><p style=3D"min-height: 8pt;=
height: 8pt; padding: 0px;"> </p><p>Needed some help here (Jboss AS 7=
.1, RHEL 6)</p><p style=3D"min-height: 8pt; height: 8pt; padding: 0px;">=
60;</p><p>I have updated the java options in standalone.conf file </p><p st=
yle=3D"min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>JAVA_OPTS=
=3D"-Xms2048m -Xmx2048m -XX:MaxPermSize=3D512m -XX:ThreadStackSize=3D128"</=
p><p style=3D"min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>res=
tarted the Jboss</p><p style=3D"min-height: 8pt; height: 8pt; padding: 0px;=
"> </p><p>Now need to confirm the settings have effecctively updated, =
I run the following command "<span lang=3D"EN-AU" style=3D"font-size: 12pt;=
font-family: 'Times New Roman','serif';">java -XshowSettings:all" , below =
is the output<br/></span></p><p style=3D"min-height: 8pt; height: 8pt; padd=
ing: 0px;"> </p><p>VM settings:</p><p>    Stack Size: 1=
.00M</p><p>    Max. Heap Size (Estimated): 1.71G</p><p> =
;   Ergonomics Machine Class: server</p><p>    Usi=
ng VM: Java HotSpot(TM) 64-Bit Server VM</p><p style=3D"min-height: 8pt; he=
ight: 8pt; padding: 0px;"> </p><p>The stack size still it is showin as=
1 MB and heap size as 1.71 G.</p><p style=3D"min-height: 8pt; height: 8pt;=
padding: 0px;"> </p><p>why the settings have not been updated ? Am I =
looking at right place (<span lang=3D"EN-AU" style=3D"font-size: 12pt; font=
-family: 'Times New Roman','serif';">java -XshowSettings:all) ?</span></p><=
p style=3D"min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span =
lang=3D"EN-AU" style=3D"font-size: 12pt; font-family: 'Times New Roman','se=
rif';">Help will be most appreciated</span></p><p style=3D"min-height: 8pt;=
height: 8pt; padding: 0px;"> </p><p><span lang=3D"EN-AU" style=3D"fon=
t-size: 12pt; font-family: 'Times New Roman','serif';">Regards</span></p><p=
style=3D"min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span l=
ang=3D"EN-AU" style=3D"font-size: 12pt; font-family: 'Times New Roman','ser=
if';">Avinash<br/></span></p></div>
<div style=3D"background-color: #f4f4f4; padding: 10px; margin-top: 20px;">
<p style=3D"margin: 0;">Reply to this message by <a href=3D"https://com=
munity.jboss.org/message/833306#833306">going to Community</a></p>
=09<p style=3D"margin: 0;">Start a new discussion in Performance Tuning at =
<a href=3D"https://community.jboss.org/choose-container!input.jspa?contentT=
ype=3D1&containerType=3D14&container=3D2078">Community</a></p>
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