Yeah, this line:
JAVA_OPTS="-Xms128m -Xmx256m -XX:MaxPermSize=64m ";
The 64m that's shown there is the default size, so increasing it to
anything higher then that, like 128 or 256, would give you more space
for your compiled classes. It will be in addition to your max heap size
though, so make sure you have the memory to spare. ;)
Warm Regards,
Jordan Michaels
On 08/09/2012 06:08 AM, Alan Cole wrote:
Jordan,
How do I increase "MaxPermSize" is it in the same file as -Xmx setting?
Thanks,
Alan Cole
(PGP Key ID: 0x82D8E0C7)
Begin forwarded message:
*From: *Jordan Michaels <[email protected]
<mailto:[email protected]>>
*Subject: *Re: [OpenBD] Restart time
*Date: *August 8, 2012 5:43:17 PM EDT
*To: *[email protected] <mailto:[email protected]>
*Reply-To: *[email protected] <mailto:[email protected]>
Yeah, I'd recommend it. Maybe also consider increasing MaxPermSize as
well and see if that helps since compiled classes are stored there.
Are these sites using a framework of any kind? I don't know hat all
frameworks have it, but I wonder if you may be compiling the framework
classes multiple times for each new site you add? I know Mura
addresses this by giving users the ability to host multiple sites via
the same code base, but I don't know how other frameworks handle this,
or even if they do.
Also, just so you're aware, if you're using the OpenBD 2 installer it
contains mod_cfml. mod_cfml will not get hit if you're adding the
sites to the server.xml file (which it sounds like you are), but if it
IS getting hit for any reason, it will add several seconds to the
initial hit of a web site in order to create the new context in Tomcat
for that site. It may be useful to turn on mod_cfml's logging (in
Tomcat's server.xml file) and see if you get any mod_cfml messages in
the catalina.out log. You can rule it out as a possible cause that way.
Warm Regards,
Jordan Michaels
On 08/08/2012 02:24 PM, Alan Cole wrote:
Jordan,
I had set that (-Xmx512m) a few weeks ago ... I'm sure it
helped, but it didn't "seem" to improve things much.
I'm kinda gathering that I should double the ram and then push
that -Xmx to 1024m and see if that improves the load times?
Thanks,
Alan Cole
(PGP Key ID: 0x82D8E0C7)
Begin forwarded message:
*From: *Jordan Michaels <[email protected]
<mailto:[email protected]>
<mailto:[email protected]>>
*Subject: *Re: [OpenBD] Restart time
*Date: *August 8, 2012 5:07:37 PM EDT
*To: *[email protected] <mailto:[email protected]>
<mailto:[email protected]>
*Reply-To: *[email protected] <mailto:[email protected]>
<mailto:[email protected]>
Guessing from what you're experiencing here, when your contexts load
they're generating a few classes. Those classes take time to load.
Load time could be improved by upping the amount of memory that you're
giving your JVM.
To update the amount of memory you're providing to your JVM, edit the
following file:
/opt/openbd/tomcat/bin/setenv.sh
The default will probably look something like this:
JAVA_OPTS="-Xms128m -Xmx256m -XX:MaxPermSize=64m ";
Since your system has 1GB available to it, you could safely increase
the max memory that your JVM uses by adjusting the following value:
-Xmx256m
to
-Xmx512m
Or, if you could give your system more memory, then you could move it
even higher.
Memory is going to be your most important resource in your server
environment. Even though you're running with good CPU power, it will
be important as you grow to vastly increase your memory from what it
is now.
Let us know how this works for you.
Hope this helps.
Warm Regards,
Jordan Michaels
On 08/08/2012 01:50 PM, Alan Cole wrote:
Alex,
we are using AJP (AJP13) - through apache
No - cpu load drops to half (or less than half) of normal operational
load.
OpenBD system info screen shows:
JVM memory Info
used: 338 MB
Free: 157 MB
Total: 495 MB
Max: 495 MB
(Matthew, I'm guessing the above will answer your question of
Tomcat mem
usage as well).
Thanks,
Alan Cole
(PGP Key ID: 0x82D8E0C7)
Begin forwarded message:
*From: *Alex Skinner <[email protected] <mailto:[email protected]>
<mailto:[email protected]>
<mailto:[email protected]>>
*Subject: *Re: [OpenBD] Restart time
*Date: *August 8, 2012 4:35:58 PM EDT
*To: *"[email protected] <mailto:[email protected]>
<mailto:[email protected]>
<mailto:[email protected]>"
<[email protected] <mailto:[email protected]>
<mailto:[email protected]>
<mailto:[email protected]>>
*Reply-To: *[email protected]
<mailto:[email protected]> <mailto:[email protected]>
<mailto:[email protected]>
So compared to acf the time to serve requests is high, what are you
fronting tomcat with and how modproxy or ajp?
Do you get high CPU utilisation when for the period an then it drops,
check the system information screen in the bluedragon admin and let us
know ram usage
Have you upped the maxpermsize from default?
A
On Wednesday, 8 August 2012, Alan Cole <[email protected]
<mailto:[email protected]>
<mailto:[email protected]>
<mailto:[email protected]>> wrote:
> Jason,
> Fedora 16
> Thanks,
> Alan Cole
> (PGP Key ID: 0x82D8E0C7)
>
>
> Begin forwarded message:
>
> From: Jason King <[email protected]
<mailto:[email protected]>
<mailto:[email protected]>
<mailto:[email protected]>>
>
> Subject: Re: [OpenBD] Restart time
>
> Date: August 8, 2012 4:18:22 PM EDT
>
> To: [email protected] <mailto:[email protected]>
<mailto:[email protected]>
<mailto:[email protected]>
>
> Reply-To: [email protected]
<mailto:[email protected]> <mailto:[email protected]>
<mailto:[email protected]>
>
> What OS?
>
> --
> online documentation: http://openbd.org/manual/
> http://groups.google.com/group/openbd?hl=en
>
> --
> online documentation: http://openbd.org/manual/
> http://groups.google.com/group/openbd?hl=en
>
--
Alex Skinner
Managing Director
Pixl8 Interactive
Tel: +448452600726
Email: [email protected] <mailto:[email protected]>
<mailto:[email protected]>
<mailto:[email protected]>
Web: pixl8.co.uk <http://pixl8.co.uk> <http://pixl8.co.uk>
<http://pixl8.co.uk>
--
online documentation: http://openbd.org/manual/
http://groups.google.com/group/openbd?hl=en
--
online documentation: http://openbd.org/manual/
http://groups.google.com/group/openbd?hl=en
--
online documentation: http://openbd.org/manual/
http://groups.google.com/group/openbd?hl=en
--
online documentation: http://openbd.org/manual/
http://groups.google.com/group/openbd?hl=en
--
online documentation: http://openbd.org/manual/
http://groups.google.com/group/openbd?hl=en
--
online documentation: http://openbd.org/manual/
http://groups.google.com/group/openbd?hl=en
--
online documentation: http://openbd.org/manual/
http://groups.google.com/group/openbd?hl=en
