Re: JVM args, GC issues, performance tuning - CF9, Win2k8
Ben,
The settings for -XX:PermSize=512m -XX:MaxPermSize=512m seem a bit large based
on the max heap size of 1024. Did you run some tuning tests to see that these
sizes were needed? I usually see settings on high load servers around 128/192
up-to 192/256. These are all based on the particular app and server in
question. Your results may vary depending on the server and application needs.
Also, there are other settings you should add. The GC setting is good. Parallel
GC is meant for multiple CPU servers. However, the default execution times of
the GC is every minute unless you set them. Use these settings
(-Dsun.rmi.dgc.client.gcInterval=60 -Dsun.rmi.dgc.server.gcInterval=60
) to set the time interval in millie seconds. I've found tens minutes is a good
place to start then monitor your app and server and adjust accordingly.
Also look at setting the ratio of perm to new gen -XX:NewRatio=3 .
Hope this helps you in the right direction.
Wil Genovese
Sr. Web Application Developer/
Systems Administrator
CF Webtools
www.cfwebtools.com
wilg...@trunkful.com
www.trunkful.com
On Feb 9, 2011, at 1:09 PM, Ben Raccuia wrote:
Hello Mark,
I was hoping you could help out in this case as well. I have followed this
post and made the recommended changes you specified, but still we have
periodic CF service restarts. I have attached the VM arguments and evars.
Any help in direction would be welcome.
Thank you.
BEN
VM Arguments:
jvm_args: -Xms1024m -Xmx1024m -Dsun.io.useCanonCaches=false -XX:PermSize=512m
-XX:MaxPermSize=512m -XX:+UseParallelGC
-Dcoldfusion.rootDir=C:\ColdFusion9\runtime/../
-Dcoldfusion.libPath=C:\ColdFusion9\runtime/../lib
-Dcoldfusion.classPath=C:\ColdFusion9\runtime/../lib/updates,C:\ColdFusion9\runtime/../lib,C:\ColdFusion9\runtime/../gateway/lib/,C:\ColdFusion9\runtime/../wwwroot/WEB-INF/flex/jars,C:\ColdFusion9\runtime/../wwwroot/WEB-INF/cfform/jars
-Djmx.invoke.getters=true
java_command: unknown
Launcher Type: generic
Environment Variables:
PATH=C:\ColdFusion9\runtime\..\lib;C:\ColdFusion9\runtime\..\jintegra\bin;C:\ColdFusion9\runtime\..\jintegra\bin\international;C:\ColdFusion9\runtime\..\lib\oosdk\classes\win;C:\Program
Files\Legato\nsr\bin;C:\ColdFusion9\verity\k2\_nti40\bin;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\
USERNAME=Administrator
OS=Windows_NT
PROCESSOR_IDENTIFIER=Intel64 Family 6 Model 46 Stepping 6, GenuineIntel
--- S Y S T E M ---
OS: Windows Server 2008 R2 Build 7600
CPU:total 2 (1 cores per cpu, 1 threads per core) family 6 model 46 stepping
6, cmov, cx8, fxsr, mmx, sse, sse2, sse3, ssse3, sse4.1, sse4.2
Memory: 4k page, physical 4194303k(4194303k free), swap 4194303k(4194303k
free)
vm_info: Java HotSpot(TM) Server VM (14.3-b01) for windows-x86 JRE
(1.6.0_17-b04), built on Oct 11 2009 00:46:21 by java_re with MS VC++ 7.1
time: Wed Feb 09 14:00:00 2011
elapsed time: 3539 seconds
Kris,
As dave said, I would start with increasing minimum and maximum heap size to
something more likely for a 64bit server. 512megs is inadequate. Set it to
at least 1024 (both of them) and other's have mentioned additional switches.
-Mark
Mark A. Kruger, MCSE, CFG
(402) 408-3733 ext 105
Skype: markakruger
www.cfwebtools.com
www.coldfusionmuse.com
www.necfug.com
It's as default as it gets. No changes from initial install at all:
An enterprise server CF9 hf1:
java.args=-server -Xmx512m -Dsun.io.useCanonCaches=false
-XX:MaxPermSize=192m -XX:+UseParallelGC -Xbatch
-Dcoldfusion.rootDir={application.home}/
-Djava.security.policy={application.home}/servers/cfusion/cfusion-ear/cfusio
n-war/WEB-INF/cfusion/lib/coldfusion.policy
-Djava.security.auth.policy={application.home}/servers/cfusion/cfusion-ear/c
fusion-war/WEB-INF/cfusion/lib/neo_jaas.policy
A standard server CF9 hf1:
java.args=-server -Xmx512m -Dsun.io.useCanonCaches=false
-XX:MaxPermSize=192m -XX:+UseParallelGC -Xbatch
-Dcoldfusion.rootDir={application.home}/../
-Djava.security.policy={application.home}/../lib/coldfusion.policy
-Djava.security.auth.policy={application.home}/../lib/neo_jaas.policy
-Dcoldfusion.classPath={application.home}/../lib/updates,{application.home}/
../lib,{application.home}/../gateway/lib/,{application.home}/../wwwroot/WEB-
INF/cfform/jars,{application.home}/../wwwroot/WEB-INF/flex/jars
-Dcoldfusion.libPath={application.home}/../lib
Cheers,
Kris
Please post your JVM config line from jvm.config
I can most likely give you the pointers you need once I see your existing
config arguments.
http://groups.google.com/group/cfaussie/browse_thread/thread/3932bce486621ab
e/8b37ea8cbe0384b6?pli=1
http://www.softwaresecretweapons.com/jspwiki/thelastjavagarbagecollectiongui
deyouwilleverneed
~|
Order the
Re: JVM args, GC issues, performance tuning - CF9, Win2k8
Hello Mark,
I was hoping you could help out in this case as well. I have followed this
post and made the recommended changes you specified, but still we have periodic
CF service restarts. I have attached the VM arguments and evars. Any help in
direction would be welcome.
Thank you.
BEN
VM Arguments:
jvm_args: -Xms1024m -Xmx1024m -Dsun.io.useCanonCaches=false -XX:PermSize=512m
-XX:MaxPermSize=512m -XX:+UseParallelGC
-Dcoldfusion.rootDir=C:\ColdFusion9\runtime/../
-Dcoldfusion.libPath=C:\ColdFusion9\runtime/../lib
-Dcoldfusion.classPath=C:\ColdFusion9\runtime/../lib/updates,C:\ColdFusion9\runtime/../lib,C:\ColdFusion9\runtime/../gateway/lib/,C:\ColdFusion9\runtime/../wwwroot/WEB-INF/flex/jars,C:\ColdFusion9\runtime/../wwwroot/WEB-INF/cfform/jars
-Djmx.invoke.getters=true
java_command: unknown
Launcher Type: generic
Environment Variables:
PATH=C:\ColdFusion9\runtime\..\lib;C:\ColdFusion9\runtime\..\jintegra\bin;C:\ColdFusion9\runtime\..\jintegra\bin\international;C:\ColdFusion9\runtime\..\lib\oosdk\classes\win;C:\Program
Files\Legato\nsr\bin;C:\ColdFusion9\verity\k2\_nti40\bin;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\
USERNAME=Administrator
OS=Windows_NT
PROCESSOR_IDENTIFIER=Intel64 Family 6 Model 46 Stepping 6, GenuineIntel
--- S Y S T E M ---
OS: Windows Server 2008 R2 Build 7600
CPU:total 2 (1 cores per cpu, 1 threads per core) family 6 model 46 stepping 6,
cmov, cx8, fxsr, mmx, sse, sse2, sse3, ssse3, sse4.1, sse4.2
Memory: 4k page, physical 4194303k(4194303k free), swap 4194303k(4194303k free)
vm_info: Java HotSpot(TM) Server VM (14.3-b01) for windows-x86 JRE
(1.6.0_17-b04), built on Oct 11 2009 00:46:21 by java_re with MS VC++ 7.1
time: Wed Feb 09 14:00:00 2011
elapsed time: 3539 seconds
Kris,
As dave said, I would start with increasing minimum and maximum heap size to
something more likely for a 64bit server. 512megs is inadequate. Set it to
at least 1024 (both of them) and other's have mentioned additional switches.
-Mark
Mark A. Kruger, MCSE, CFG
(402) 408-3733 ext 105
Skype: markakruger
www.cfwebtools.com
www.coldfusionmuse.com
www.necfug.com
It's as default as it gets. No changes from initial install at all:
An enterprise server CF9 hf1:
java.args=-server -Xmx512m -Dsun.io.useCanonCaches=false
-XX:MaxPermSize=192m -XX:+UseParallelGC -Xbatch
-Dcoldfusion.rootDir={application.home}/
-Djava.security.policy={application.home}/servers/cfusion/cfusion-ear/cfusio
n-war/WEB-INF/cfusion/lib/coldfusion.policy
-Djava.security.auth.policy={application.home}/servers/cfusion/cfusion-ear/c
fusion-war/WEB-INF/cfusion/lib/neo_jaas.policy
A standard server CF9 hf1:
java.args=-server -Xmx512m -Dsun.io.useCanonCaches=false
-XX:MaxPermSize=192m -XX:+UseParallelGC -Xbatch
-Dcoldfusion.rootDir={application.home}/../
-Djava.security.policy={application.home}/../lib/coldfusion.policy
-Djava.security.auth.policy={application.home}/../lib/neo_jaas.policy
-Dcoldfusion.classPath={application.home}/../lib/updates,{application.home}/
../lib,{application.home}/../gateway/lib/,{application.home}/../wwwroot/WEB-
INF/cfform/jars,{application.home}/../wwwroot/WEB-INF/flex/jars
-Dcoldfusion.libPath={application.home}/../lib
Cheers,
Kris
Please post your JVM config line from jvm.config
I can most likely give you the pointers you need once I see your existing
config arguments.
http://groups.google.com/group/cfaussie/browse_thread/thread/3932bce486621ab
e/8b37ea8cbe0384b6?pli=1
http://www.softwaresecretweapons.com/jspwiki/thelastjavagarbagecollectiongui
deyouwilleverneed
~|
Order the Adobe Coldfusion Anthology now!
http://www.amazon.com/Adobe-Coldfusion-Anthology/dp/1430272155/?tag=houseoffusion
Archive:
http://www.houseoffusion.com/groups/cf-talk/message.cfm/messageid:342058
Subscription: http://www.houseoffusion.com/groups/cf-talk/subscribe.cfm
Unsubscribe: http://www.houseoffusion.com/groups/cf-talk/unsubscribe.cfm
Re: JVM args, GC issues, performance tuning - CF9, Win2k8
Rest...
Environment Variables:
PATH=C:\ColdFusion9\runtime\..\lib;C:\ColdFusion9\runtime\..\jintegra\bin;C:\ColdFusion9\runtime\..\jintegra\bin\international;C:\ColdFusion9\runtime\..\lib\oosdk\classes\win;C:\Program
Files\Legato\nsr\bin;C:\ColdFusion9\verity\k2\_nti40\bin;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\
USERNAME=Administrator
OS=Windows_NT
PROCESSOR_IDENTIFIER=Intel64 Family 6 Model 46 Stepping 6, GenuineIntel
--- S Y S T E M ---
OS: Windows Server 2008 R2 Build 7600
CPU:total 2 (1 cores per cpu, 1 threads per core) family 6 model 46 stepping 6,
cmov, cx8, fxsr, mmx, sse, sse2, sse3, ssse3, sse4.1, sse4.2
Memory: 4k page, physical 4194303k(4194303k free), swap 4194303k(4194303k free)
vm_info: Java HotSpot(TM) Server VM (14.3-b01) for windows-x86 JRE
(1.6.0_17-b04), built on Oct 11 2009 00:46:21 by java_re with MS VC++ 7.1
time: Wed Feb 09 14:00:00 2011
elapsed time: 3539 seconds
Hello Mark,
I was hoping you could help out in this case as well. I have followed
this post and made the recommended changes you specified, but still we
have periodic CF service restarts. I have attached the VM arguments
and evars. Any help in direction would be welcome.
Thank you.
BEN
VM Arguments:
jvm_args: -Xms1024m -Xmx1024m -Dsun.io.useCanonCaches=false
-XX:PermSize=512m -XX:MaxPermSize=512m -XX:+UseParallelGC -Dcoldfusion.
rootDir=C:\ColdFusion9\runtime/../ -Dcoldfusion.
libPath=C:\ColdFusion9\runtime/../lib -Dcoldfusion.
classPath=C:\ColdFusion9\runtime/../lib/updates,
C:\ColdFusion9\runtime/../lib,C:\ColdFusion9\runtime/../gateway/lib/,
C:\ColdFusion9\runtime/../wwwroot/WEB-INF/flex/jars,
C:\ColdFusion9\runtime/../wwwroot/WEB-INF/cfform/jars -Djmx.invoke.
getters=true
java_command: unknown
Launcher Type: generic
Environment Variables:
PATH=C:\ColdFusion9\runtime\..\lib;C:\ColdFusion9\runtime\..
\jintegra\bin;C:\ColdFusion9\runtime\..
\jintegra\bin\international;C:\ColdFusion9\runtime\..
\lib\oosdk\classes\win;C:\Program
Files\Legato\nsr\bin;C:\ColdFusion9\verity\k2\_nti40\bin;C:\Windows\system32;C:\Win
dows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.
0\
USERNAME=Administrator
OS=Windows_NT
PROCESSOR_IDENTIFIER=Intel64 Family 6 Model 46 Stepping 6,
GenuineIntel
--- S Y S T E M ---
OS: Windows Server 2008 R2 Build 7600
CPU:total 2 (1 cores per cpu, 1 threads per core) family 6 model 46
stepping 6, cmov, cx8, fxsr, mmx, sse, sse2, sse3, ssse3, sse4.1, sse4.
2
Memory: 4k page, physical 4194303k(4194303k free), swap
4194303k(4194303k free)
vm_info: Java HotSpot(TM) Server VM (14.3-b01) for windows-x86 JRE (1.
6.0_17-b04), built on Oct 11 2009 00:46:21 by java_re with MS VC++ 7.
1
time: Wed Feb 09 14:00:00 2011
elapsed time: 3539 seconds
Kris,
As dave said, I would start with increasing minimum and maximum heap
size to
something more likely for a 64bit server. 512megs is inadequate. Set
it to
at least 1024 (both of them) and other's have mentioned additional
switches.
-Mark
Mark A. Kruger, MCSE, CFG
(402) 408-3733 ext 105
Skype: markakruger
www.cfwebtools.com
www.coldfusionmuse.com
www.necfug.com
It's as default as it gets. No changes from initial install at all:
An enterprise server CF9 hf1:
java.args=-server -Xmx512m -Dsun.io.useCanonCaches=false
-XX:MaxPermSize=192m -XX:+UseParallelGC -Xbatch
-Dcoldfusion.rootDir={application.home}/
-Djava.security.policy={application.
home}/servers/cfusion/cfusion-ear/cfusio
n-war/WEB-INF/cfusion/lib/coldfusion.policy
-Djava.security.auth.policy={application.
home}/servers/cfusion/cfusion-ear/c
fusion-war/WEB-INF/cfusion/lib/neo_jaas.policy
A standard server CF9 hf1:
java.args=-server -Xmx512m -Dsun.io.useCanonCaches=false
-XX:MaxPermSize=192m -XX:+UseParallelGC -Xbatch
-Dcoldfusion.rootDir={application.home}/../
-Djava.security.policy={application.home}/../lib/coldfusion.policy
-Djava.security.auth.policy={application.home}/../lib/neo_jaas.
policy
-Dcoldfusion.classPath={application.home}/../lib/updates,{application.
home}/
../lib,{application.home}/../gateway/lib/,{application.home}/..
/wwwroot/WEB-
INF/cfform/jars,{application.home}/../wwwroot/WEB-INF/flex/jars
-Dcoldfusion.libPath={application.home}/../lib
Cheers,
Kris
Please post your JVM config line from jvm.config
I can most likely give you the pointers you need once I see your
existing
config arguments.
http://groups.google.
com/group/cfaussie/browse_thread/thread/3932bce486621ab
e/8b37ea8cbe0384b6?pli=1
http://www.softwaresecretweapons.
com/jspwiki/thelastjavagarbagecollectiongui
deyouwilleverneed
~|
Order the Adobe Coldfusion Anthology now!
http://www.amazon.com/Adobe-Coldfusion-Anthology/dp/1430272155/?tag=houseoffusion
RE: JVM args, GC issues, performance tuning - CF9, Win2k8
Ben,
We'll need some other clues besides the args. My only comment on the args is
that permsize and maxpersize are the same... that's not often done - but
probably not an issue. Let's start with this. Are there any files in
c:\ColdFusion9\runtime\bin that look like hs_pid.log - or something
similar? If there are start poking around in them. These are hot spot crash
logs - a hot spot crash is often the culprit when someone says my service
keeps restarting on its own... look for out of memory errors or specific
dlls or actions... they are very cryptic so will have to be patient :)
Next, take a look in the /coldfusion9/runtime/logs/cfusion-out.log. Look for
clues around the time of the last restart (and immediately before).
-Mark
Mark A. Kruger, MCSE, CFG
(402) 408-3733 ext 105
Skype: markakruger
www.cfwebtools.com
www.coldfusionmuse.com
www.necfug.com
-Original Message-
From: Ben Raccuia [mailto:bracc...@rc.com]
Sent: Wednesday, February 09, 2011 1:10 PM
To: cf-talk
Subject: Re: JVM args, GC issues, performance tuning - CF9, Win2k8
Hello Mark,
I was hoping you could help out in this case as well. I have followed this
post and made the recommended changes you specified, but still we have
periodic CF service restarts. I have attached the VM arguments and evars.
Any help in direction would be welcome.
Thank you.
BEN
VM Arguments:
jvm_args: -Xms1024m -Xmx1024m -Dsun.io.useCanonCaches=false
-XX:PermSize=512m -XX:MaxPermSize=512m -XX:+UseParallelGC
-Dcoldfusion.rootDir=C:\ColdFusion9\runtime/../
-Dcoldfusion.libPath=C:\ColdFusion9\runtime/../lib
-Dcoldfusion.classPath=C:\ColdFusion9\runtime/../lib/updates,C:\ColdFusion9\
runtime/../lib,C:\ColdFusion9\runtime/../gateway/lib/,C:\ColdFusion9\runtime
/../wwwroot/WEB-INF/flex/jars,C:\ColdFusion9\runtime/../wwwroot/WEB-INF/cffo
rm/jars -Djmx.invoke.getters=true
java_command: unknown
Launcher Type: generic
Environment Variables:
PATH=C:\ColdFusion9\runtime\..\lib;C:\ColdFusion9\runtime\..\jintegra\bin;C:
\ColdFusion9\runtime\..\jintegra\bin\international;C:\ColdFusion9\runtime\..
\lib\oosdk\classes\win;C:\Program
Files\Legato\nsr\bin;C:\ColdFusion9\verity\k2\_nti40\bin;C:\Windows\system32
;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v
1.0\
USERNAME=Administrator
OS=Windows_NT
PROCESSOR_IDENTIFIER=Intel64 Family 6 Model 46 Stepping 6, GenuineIntel
--- S Y S T E M ---
OS: Windows Server 2008 R2 Build 7600
CPU:total 2 (1 cores per cpu, 1 threads per core) family 6 model 46 stepping
6, cmov, cx8, fxsr, mmx, sse, sse2, sse3, ssse3, sse4.1, sse4.2
Memory: 4k page, physical 4194303k(4194303k free), swap 4194303k(4194303k
free)
vm_info: Java HotSpot(TM) Server VM (14.3-b01) for windows-x86 JRE
(1.6.0_17-b04), built on Oct 11 2009 00:46:21 by java_re with MS VC++ 7.1
time: Wed Feb 09 14:00:00 2011
elapsed time: 3539 seconds
Kris,
As dave said, I would start with increasing minimum and maximum heap size
to
something more likely for a 64bit server. 512megs is inadequate. Set it to
at least 1024 (both of them) and other's have mentioned additional
switches.
-Mark
Mark A. Kruger, MCSE, CFG
(402) 408-3733 ext 105
Skype: markakruger
www.cfwebtools.com
www.coldfusionmuse.com
www.necfug.com
It's as default as it gets. No changes from initial install at all:
An enterprise server CF9 hf1:
java.args=-server -Xmx512m -Dsun.io.useCanonCaches=false
-XX:MaxPermSize=192m -XX:+UseParallelGC -Xbatch
-Dcoldfusion.rootDir={application.home}/
-Djava.security.policy={application.home}/servers/cfusion/cfusion-ear/cfusi
o
n-war/WEB-INF/cfusion/lib/coldfusion.policy
-Djava.security.auth.policy={application.home}/servers/cfusion/cfusion-ear/
c
fusion-war/WEB-INF/cfusion/lib/neo_jaas.policy
A standard server CF9 hf1:
java.args=-server -Xmx512m -Dsun.io.useCanonCaches=false
-XX:MaxPermSize=192m -XX:+UseParallelGC -Xbatch
-Dcoldfusion.rootDir={application.home}/../
-Djava.security.policy={application.home}/../lib/coldfusion.policy
-Djava.security.auth.policy={application.home}/../lib/neo_jaas.policy
-Dcoldfusion.classPath={application.home}/../lib/updates,{application.home}
/
../lib,{application.home}/../gateway/lib/,{application.home}/../wwwroot/WEB
-
INF/cfform/jars,{application.home}/../wwwroot/WEB-INF/flex/jars
-Dcoldfusion.libPath={application.home}/../lib
Cheers,
Kris
Please post your JVM config line from jvm.config
I can most likely give you the pointers you need once I see your existing
config arguments.
http://groups.google.com/group/cfaussie/browse_thread/thread/3932bce486621a
b
e/8b37ea8cbe0384b6?pli=1
http://www.softwaresecretweapons.com/jspwiki/thelastjavagarbagecollectiongu
i
deyouwilleverneed
~|
Order the Adobe Coldfusion Anthology now!
http://www.amazon.com/Adobe-Coldfusion-Anthology/dp/1430272155/?tag=houseoffusion
Archive:
http://www.houseoffusion.com/groups/cf-talk/message.cfm/messageid:342065
RE: JVM args, GC issues, performance tuning - CF9, Win2k8
Wait...let me say one more thing. A permsize of 512megs is pretty hefty. It's not unheard of, but are you sure you need it? Usually 256 is sufficient. -Mark Mark A. Kruger, MCSE, CFG (402) 408-3733 ext 105 Skype: markakruger www.cfwebtools.com www.coldfusionmuse.com www.necfug.com -Original Message- From: Mark A. Kruger [mailto:mkru...@cfwebtools.com] Sent: Wednesday, February 09, 2011 1:56 PM To: cf-talk Subject: RE: JVM args, GC issues, performance tuning - CF9, Win2k8 Ben, We'll need some other clues besides the args. My only comment on the args is that permsize and maxpersize are the same... that's not often done - but probably not an issue. Let's start with this. Are there any files in c:\ColdFusion9\runtime\bin that look like hs_pid.log - or something similar? If there are start poking around in them. These are hot spot crash logs - a hot spot crash is often the culprit when someone says my service keeps restarting on its own... look for out of memory errors or specific dlls or actions... they are very cryptic so will have to be patient :) Next, take a look in the /coldfusion9/runtime/logs/cfusion-out.log. Look for clues around the time of the last restart (and immediately before). -Mark Mark A. Kruger, MCSE, CFG (402) 408-3733 ext 105 Skype: markakruger www.cfwebtools.com www.coldfusionmuse.com www.necfug.com -Original Message- From: Ben Raccuia [mailto:bracc...@rc.com] Sent: Wednesday, February 09, 2011 1:10 PM To: cf-talk Subject: Re: JVM args, GC issues, performance tuning - CF9, Win2k8 ~| Order the Adobe Coldfusion Anthology now! http://www.amazon.com/Adobe-Coldfusion-Anthology/dp/1430272155/?tag=houseoffusion Archive: http://www.houseoffusion.com/groups/cf-talk/message.cfm/messageid:342066 Subscription: http://www.houseoffusion.com/groups/cf-talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/groups/cf-talk/unsubscribe.cfm
Re: JVM args, GC issues, performance tuning - CF9, Win2k8
I did a talk recently at CFMeetup on CF JVM related matters. You can know what is going on inside CF JVM. Knowing is good it may not be the JVM args that are causing your problems, then you can get on with finding out what really is wrong. Else if the JVM shows it is having GC or memory issues well you can make educated adjustments rather than having a guess at it. If interested have a listen: http://experts.adobeconnect.com/p55663036/ HTH, Carl. ~| Order the Adobe Coldfusion Anthology now! http://www.amazon.com/Adobe-Coldfusion-Anthology/dp/1430272155/?tag=houseoffusion Archive: http://www.houseoffusion.com/groups/cf-talk/message.cfm/messageid:342087 Subscription: http://www.houseoffusion.com/groups/cf-talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/groups/cf-talk/unsubscribe.cfm
Re: JVM args, GC issues, performance tuning - CF9, Win2k8
I did a talk recently at CFMeetup on CF JVM related matters. You can know what is going on inside CF JVM. Knowing is good it may not be the JVM args that are causing your problems, then you can get on with finding out what really is wrong. Else if the JVM shows it is having GC or memory issues well you can make educated adjustments rather than having a guess at it. If interested have a listen: http://experts.adobeconnect.com/p55663036/ HTH, Carl. We've been running into some issues while testing a new deployment. Servers are CF9 (hf1) on Win2k8 64-bit. Also seeing same problems on developer machines running Win7 64-bit, and WinXP (32-bit). We're seeing the problem on both CF9 Standard as well as CF9 Enterprise. We're having trouble getting the GC to maintain a happy state, service climbs and climbs, and eventually kacks the server. ~| Order the Adobe Coldfusion Anthology now! http://www.amazon.com/Adobe-Coldfusion-Anthology/dp/1430272155/?tag=houseoffusion Archive: http://www.houseoffusion.com/groups/cf-talk/message.cfm/messageid:342088 Subscription: http://www.houseoffusion.com/groups/cf-talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/groups/cf-talk/unsubscribe.cfm
JVM args, GC issues, performance tuning - CF9, Win2k8
Hi all, We've been running into some issues while testing a new deployment. Servers are CF9 (hf1) on Win2k8 64-bit. Also seeing same problems on developer machines running Win7 64-bit, and WinXP (32-bit). We're seeing the problem on both CF9 Standard as well as CF9 Enterprise. We're having trouble getting the GC to maintain a happy state, service climbs and climbs, and eventually kacks the server. Wondering if any of the following suggestions for GC settings etc., still apply for CF9. http://www.coldfusionmuse.com/index.cfm/2005/10/28/jvm.gc http://www.petefreitag.com/articles/gctuning/ Did find this, which shows his solution, but no good discussion about setup based on server config: http://forums.adobe.com/thread/642057?tstart=0 And this one discusses 64-bit implementation, but again, no real guidelines for how to tune. http://groups.google.com/group/cfaussie/browse_thread/thread/3932bce486621abe/8b37ea8cbe0384b6?pli=1 And on GC itself: http://www.softwaresecretweapons.com/jspwiki/thelastjavagarbagecollectionguideyouwilleverneed Are there other resources that detail JVM args, GC settings, versions, etc., as relates to CF9? Is it advisable to change the GC type? CF9 ships with 6.0_14, which doesn't exhibit the class loader bug. We are seeing some mem lost when passing very large strings between objects. This is resolved if we package the strings inside of structs (pass by ref vs. pass by val), or write the process old-school. But, honestly, is that a solution? We've implemented a check for var scoping errors across the board, and have made sure that the output attribute on every function definition is there and set to either true or false (not left blank, or undefined). Thoughts? Or is time to give up, punch the clock and retire? Cheers, Kris ~| Order the Adobe Coldfusion Anthology now! http://www.amazon.com/Adobe-Coldfusion-Anthology-Michael-Dinowitz/dp/1430272155/?tag=houseoffusion Archive: http://www.houseoffusion.com/groups/cf-talk/message.cfm/messageid:335271 Subscription: http://www.houseoffusion.com/groups/cf-talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/groups/cf-talk/unsubscribe.cfm
Re: JVM args, GC issues, performance tuning - CF9, Win2k8
Please post your JVM config line from jvm.config I can most likely give you the pointers you need once I see your existing config arguments. Wil Genovese Sr. Web Application Developer/ Systems Administrator Wil Genovese Consulting wilg...@trunkful.com www.trunkful.com On Jul 12, 2010, at 4:11 PM, Kris Jones wrote: Hi all, We've been running into some issues while testing a new deployment. Servers are CF9 (hf1) on Win2k8 64-bit. Also seeing same problems on developer machines running Win7 64-bit, and WinXP (32-bit). We're seeing the problem on both CF9 Standard as well as CF9 Enterprise. We're having trouble getting the GC to maintain a happy state, service climbs and climbs, and eventually kacks the server. Wondering if any of the following suggestions for GC settings etc., still apply for CF9. http://www.coldfusionmuse.com/index.cfm/2005/10/28/jvm.gc http://www.petefreitag.com/articles/gctuning/ Did find this, which shows his solution, but no good discussion about setup based on server config: http://forums.adobe.com/thread/642057?tstart=0 And this one discusses 64-bit implementation, but again, no real guidelines for how to tune. http://groups.google.com/group/cfaussie/browse_thread/thread/3932bce486621abe/8b37ea8cbe0384b6?pli=1 And on GC itself: http://www.softwaresecretweapons.com/jspwiki/thelastjavagarbagecollectionguideyouwilleverneed Are there other resources that detail JVM args, GC settings, versions, etc., as relates to CF9? Is it advisable to change the GC type? CF9 ships with 6.0_14, which doesn't exhibit the class loader bug. We are seeing some mem lost when passing very large strings between objects. This is resolved if we package the strings inside of structs (pass by ref vs. pass by val), or write the process old-school. But, honestly, is that a solution? We've implemented a check for var scoping errors across the board, and have made sure that the output attribute on every function definition is there and set to either true or false (not left blank, or undefined). Thoughts? Or is time to give up, punch the clock and retire? Cheers, Kris ~| Order the Adobe Coldfusion Anthology now! http://www.amazon.com/Adobe-Coldfusion-Anthology-Michael-Dinowitz/dp/1430272155/?tag=houseoffusion Archive: http://www.houseoffusion.com/groups/cf-talk/message.cfm/messageid:335272 Subscription: http://www.houseoffusion.com/groups/cf-talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/groups/cf-talk/unsubscribe.cfm
Re: JVM args, GC issues, performance tuning - CF9, Win2k8
It's as default as it gets. No changes from initial install at all:
An enterprise server CF9 hf1:
java.args=-server -Xmx512m -Dsun.io.useCanonCaches=false
-XX:MaxPermSize=192m -XX:+UseParallelGC -Xbatch
-Dcoldfusion.rootDir={application.home}/
-Djava.security.policy={application.home}/servers/cfusion/cfusion-ear/cfusion-war/WEB-INF/cfusion/lib/coldfusion.policy
-Djava.security.auth.policy={application.home}/servers/cfusion/cfusion-ear/cfusion-war/WEB-INF/cfusion/lib/neo_jaas.policy
A standard server CF9 hf1:
java.args=-server -Xmx512m -Dsun.io.useCanonCaches=false
-XX:MaxPermSize=192m -XX:+UseParallelGC -Xbatch
-Dcoldfusion.rootDir={application.home}/../
-Djava.security.policy={application.home}/../lib/coldfusion.policy
-Djava.security.auth.policy={application.home}/../lib/neo_jaas.policy
-Dcoldfusion.classPath={application.home}/../lib/updates,{application.home}/../lib,{application.home}/../gateway/lib/,{application.home}/../wwwroot/WEB-INF/cfform/jars,{application.home}/../wwwroot/WEB-INF/flex/jars
-Dcoldfusion.libPath={application.home}/../lib
Cheers,
Kris
On Mon, Jul 12, 2010 at 5:16 PM, Wil Genovese jugg...@trunkful.com wrote:
Please post your JVM config line from jvm.config
I can most likely give you the pointers you need once I see your existing
config arguments.
We've been running into some issues while testing a new deployment.
Servers are CF9 (hf1) on Win2k8 64-bit. Also seeing same problems on
developer machines running Win7 64-bit, and WinXP (32-bit). We're
seeing the problem on both CF9 Standard as well as CF9 Enterprise.
We're having trouble getting the GC to maintain a happy state, service
climbs and climbs, and eventually kacks the server. Wondering if any
of the following suggestions for GC settings etc., still apply for
CF9.
http://www.coldfusionmuse.com/index.cfm/2005/10/28/jvm.gc
http://www.petefreitag.com/articles/gctuning/
Did find this, which shows his solution, but no good discussion about
setup based on server config:
http://forums.adobe.com/thread/642057?tstart=0
And this one discusses 64-bit implementation, but again, no real
guidelines for how to tune.
http://groups.google.com/group/cfaussie/browse_thread/thread/3932bce486621abe/8b37ea8cbe0384b6?pli=1
And on GC itself:
http://www.softwaresecretweapons.com/jspwiki/thelastjavagarbagecollectionguideyouwilleverneed
Are there other resources that detail JVM args, GC settings, versions,
etc., as relates to CF9? Is it advisable to change the GC type?
CF9 ships with 6.0_14, which doesn't exhibit the class loader bug. We
are seeing some mem lost when passing very large strings between
objects. This is resolved if we package the strings inside of structs
(pass by ref vs. pass by val), or write the process old-school. But,
honestly, is that a solution? We've implemented a check for var
scoping errors across the board, and have made sure that the output
attribute on every function definition is there and set to either true
or false (not left blank, or undefined).
~|
Order the Adobe Coldfusion Anthology now!
http://www.amazon.com/Adobe-Coldfusion-Anthology-Michael-Dinowitz/dp/1430272155/?tag=houseoffusion
Archive:
http://www.houseoffusion.com/groups/cf-talk/message.cfm/messageid:335276
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Re: JVM args, GC issues, performance tuning - CF9, Win2k8
It's as default as it gets. No changes from initial install at all:
An enterprise server CF9 hf1:
java.args=-server -Xmx512m -Dsun.io.useCanonCaches=false
-XX:MaxPermSize=192m -XX:+UseParallelGC -Xbatch
-Dcoldfusion.rootDir={application.home}/
-Djava.security.policy={application.home}/servers/cfusion/cfusion-ear/cfusion-war/WEB-INF/cfusion/lib/coldfusion.policy
-Djava.security.auth.policy={application.home}/servers/cfusion/cfusion-ear/cfusion-war/WEB-INF/cfusion/lib/neo_jaas.policy
The point of using a 64-bit environment is that you can allocate lots
more memory. In fact, you really have to allocate more memory than
you'd use in a 32-bit environment, because many things stored in
memory are twice as big!
Dave Watts, CTO, Fig Leaf Software
http://www.figleaf.com/
http://training.figleaf.com/
Fig Leaf Software is a Veteran-Owned Small Business (VOSB) on
GSA Schedule, and provides the highest caliber vendor-authorized
instruction at our training centers, online, or onsite.
~|
Order the Adobe Coldfusion Anthology now!
http://www.amazon.com/Adobe-Coldfusion-Anthology-Michael-Dinowitz/dp/1430272155/?tag=houseoffusion
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http://www.houseoffusion.com/groups/cf-talk/message.cfm/messageid:335278
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Re: JVM args, GC issues, performance tuning - CF9, Win2k8
There are few setting you are missing.
-Xms512m This sets the min heap size to the same size as the max heap size.
The JVM is designed to auto size up from the min to max as needed however this
can lead to problems on occasion. So far the best minds on this subject still
recommend setting the min to equal the max.
-XX:PermSize=192 This is for the memory space inside the JVM. new gen/old
gen/eden/ etc. You can read all about the memory usage at Sun's (er Oracle's)
website. In any case it is good to set the min size to the same as the max
size for the same reasons above. This settings does that.
Next are the GC intervals. These are by default not set so the JVM runs a GC
once per minute. There are many reasons why this can and won't work depending
on your setup, application memory usage and server load. In any case I've found
that the following settings are a good start for setting the GC interval. The
new setting is for every 10 minutes.
-Dsun.rmi.dgc.client.gcInterval=60
-Dsun.rmi.dgc.server.gcInterval=60
Also remember that 64bit does use more memory to start with so even if your
app(s) ran fine with just 512 on your 32bit server it's possible and even
likely that you will need to increase or even double the memory setting. Just
make sure you have enough physical RAM in the server and available for JVM
usage.
Enjoy,
Wil Genovese
Sr. Web Application Developer/
Systems Administrator
Wil Genovese Consulting
wilg...@trunkful.com
www.trunkful.com
On Jul 12, 2010, at 5:46 PM, Kris Jones wrote:
It's as default as it gets. No changes from initial install at all:
An enterprise server CF9 hf1:
java.args=-server -Xmx512m -Dsun.io.useCanonCaches=false
-XX:MaxPermSize=192m -XX:+UseParallelGC -Xbatch
-Dcoldfusion.rootDir={application.home}/
-Djava.security.policy={application.home}/servers/cfusion/cfusion-ear/cfusion-war/WEB-INF/cfusion/lib/coldfusion.policy
-Djava.security.auth.policy={application.home}/servers/cfusion/cfusion-ear/cfusion-war/WEB-INF/cfusion/lib/neo_jaas.policy
A standard server CF9 hf1:
java.args=-server -Xmx512m -Dsun.io.useCanonCaches=false
-XX:MaxPermSize=192m -XX:+UseParallelGC -Xbatch
-Dcoldfusion.rootDir={application.home}/../
-Djava.security.policy={application.home}/../lib/coldfusion.policy
-Djava.security.auth.policy={application.home}/../lib/neo_jaas.policy
-Dcoldfusion.classPath={application.home}/../lib/updates,{application.home}/../lib,{application.home}/../gateway/lib/,{application.home}/../wwwroot/WEB-INF/cfform/jars,{application.home}/../wwwroot/WEB-INF/flex/jars
-Dcoldfusion.libPath={application.home}/../lib
Cheers,
Kris
On Mon, Jul 12, 2010 at 5:16 PM, Wil Genovese jugg...@trunkful.com wrote:
Please post your JVM config line from jvm.config
I can most likely give you the pointers you need once I see your existing
config arguments.
We've been running into some issues while testing a new deployment.
Servers are CF9 (hf1) on Win2k8 64-bit. Also seeing same problems on
developer machines running Win7 64-bit, and WinXP (32-bit). We're
seeing the problem on both CF9 Standard as well as CF9 Enterprise.
We're having trouble getting the GC to maintain a happy state, service
climbs and climbs, and eventually kacks the server. Wondering if any
of the following suggestions for GC settings etc., still apply for
CF9.
http://www.coldfusionmuse.com/index.cfm/2005/10/28/jvm.gc
http://www.petefreitag.com/articles/gctuning/
Did find this, which shows his solution, but no good discussion about
setup based on server config:
http://forums.adobe.com/thread/642057?tstart=0
And this one discusses 64-bit implementation, but again, no real
guidelines for how to tune.
http://groups.google.com/group/cfaussie/browse_thread/thread/3932bce486621abe/8b37ea8cbe0384b6?pli=1
And on GC itself:
http://www.softwaresecretweapons.com/jspwiki/thelastjavagarbagecollectionguideyouwilleverneed
Are there other resources that detail JVM args, GC settings, versions,
etc., as relates to CF9? Is it advisable to change the GC type?
CF9 ships with 6.0_14, which doesn't exhibit the class loader bug. We
are seeing some mem lost when passing very large strings between
objects. This is resolved if we package the strings inside of structs
(pass by ref vs. pass by val), or write the process old-school. But,
honestly, is that a solution? We've implemented a check for var
scoping errors across the board, and have made sure that the output
attribute on every function definition is there and set to either true
or false (not left blank, or undefined).
~|
Order the Adobe Coldfusion Anthology now!
http://www.amazon.com/Adobe-Coldfusion-Anthology-Michael-Dinowitz/dp/1430272155/?tag=houseoffusion
Archive:
http://www.houseoffusion.com/groups/cf-talk/message.cfm/messageid:335279
Subscription:
RE: JVM args, GC issues, performance tuning - CF9, Win2k8
Kris,
As dave said, I would start with increasing minimum and maximum heap size to
something more likely for a 64bit server. 512megs is inadequate. Set it to
at least 1024 (both of them) and other's have mentioned additional switches.
-Mark
Mark A. Kruger, MCSE, CFG
(402) 408-3733 ext 105
Skype: markakruger
www.cfwebtools.com
www.coldfusionmuse.com
www.necfug.com
-Original Message-
From: Kris Jones [mailto:kris.jon...@verizon.net]
Sent: Monday, July 12, 2010 5:46 PM
To: cf-talk
Subject: Re: JVM args, GC issues, performance tuning - CF9, Win2k8
It's as default as it gets. No changes from initial install at all:
An enterprise server CF9 hf1:
java.args=-server -Xmx512m -Dsun.io.useCanonCaches=false
-XX:MaxPermSize=192m -XX:+UseParallelGC -Xbatch
-Dcoldfusion.rootDir={application.home}/
-Djava.security.policy={application.home}/servers/cfusion/cfusion-ear/cfusio
n-war/WEB-INF/cfusion/lib/coldfusion.policy
-Djava.security.auth.policy={application.home}/servers/cfusion/cfusion-ear/c
fusion-war/WEB-INF/cfusion/lib/neo_jaas.policy
A standard server CF9 hf1:
java.args=-server -Xmx512m -Dsun.io.useCanonCaches=false
-XX:MaxPermSize=192m -XX:+UseParallelGC -Xbatch
-Dcoldfusion.rootDir={application.home}/../
-Djava.security.policy={application.home}/../lib/coldfusion.policy
-Djava.security.auth.policy={application.home}/../lib/neo_jaas.policy
-Dcoldfusion.classPath={application.home}/../lib/updates,{application.home}/
../lib,{application.home}/../gateway/lib/,{application.home}/../wwwroot/WEB-
INF/cfform/jars,{application.home}/../wwwroot/WEB-INF/flex/jars
-Dcoldfusion.libPath={application.home}/../lib
Cheers,
Kris
On Mon, Jul 12, 2010 at 5:16 PM, Wil Genovese jugg...@trunkful.com wrote:
Please post your JVM config line from jvm.config
I can most likely give you the pointers you need once I see your existing
config arguments.
We've been running into some issues while testing a new deployment.
Servers are CF9 (hf1) on Win2k8 64-bit. Also seeing same problems on
developer machines running Win7 64-bit, and WinXP (32-bit). We're
seeing the problem on both CF9 Standard as well as CF9 Enterprise.
We're having trouble getting the GC to maintain a happy state, service
climbs and climbs, and eventually kacks the server. Wondering if any
of the following suggestions for GC settings etc., still apply for
CF9.
http://www.coldfusionmuse.com/index.cfm/2005/10/28/jvm.gc
http://www.petefreitag.com/articles/gctuning/
Did find this, which shows his solution, but no good discussion about
setup based on server config:
http://forums.adobe.com/thread/642057?tstart=0
And this one discusses 64-bit implementation, but again, no real
guidelines for how to tune.
http://groups.google.com/group/cfaussie/browse_thread/thread/3932bce486621ab
e/8b37ea8cbe0384b6?pli=1
And on GC itself:
http://www.softwaresecretweapons.com/jspwiki/thelastjavagarbagecollectiongui
deyouwilleverneed
Are there other resources that detail JVM args, GC settings, versions,
etc., as relates to CF9? Is it advisable to change the GC type?
CF9 ships with 6.0_14, which doesn't exhibit the class loader bug. We
are seeing some mem lost when passing very large strings between
objects. This is resolved if we package the strings inside of structs
(pass by ref vs. pass by val), or write the process old-school. But,
honestly, is that a solution? We've implemented a check for var
scoping errors across the board, and have made sure that the output
attribute on every function definition is there and set to either true
or false (not left blank, or undefined).
~|
Order the Adobe Coldfusion Anthology now!
http://www.amazon.com/Adobe-Coldfusion-Anthology-Michael-Dinowitz/dp/1430272155/?tag=houseoffusion
Archive:
http://www.houseoffusion.com/groups/cf-talk/message.cfm/messageid:335280
Subscription: http://www.houseoffusion.com/groups/cf-talk/subscribe.cfm
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