You are viewing a plain text version of this content. The canonical link for it is here.
Posted to user@roller.apache.org by Dean Schulze <de...@yahoo.com> on 2011/06/19 16:41:36 UTC
Memory leak, slow performance in Roller 5 on Tomcat 7
I installed the pre-packaged roller-5.0.0-tomcat.war on a new Tomcat 7.0.16 on Windows XP and created 2 users and 2 blogs. I let Roller 5 run overnight and memory usage went from 237 MB to 262 MB.
Is there a good reason for Roller to need 10% more memory when it has been inactive, or is this a memory leak?
Roller 5 is also frustratingly slow even when returning to previously rendered pages. First access is very slow, but I can understand that.
Is there something I can do through configuration to improve performance?
Thanks.
Dean
RE: Memory leak, slow performance in Roller 5 on Tomcat 7
Posted by Nelson Chamberlain <nc...@ceradyne.com>.
What does Task Manager show is happening when you try to load Main Menu? Is the processor running at 100% or is it loafing? What about memory usage? Is system memory almost used up or is does it have lots of room? If you sort your processes by Memory footprint, is there one that is consuming excessive amounts of memory, causing Windows Virtual Memory to be used? Does the hard drive run continuously when you try to load Main Menu?
What about the Tomcat logs? Any errors being reported? What about the Windows Event Viewer? Does it show any errors? I had an XP system that used to take 3 minutes to go from successful login to display of the desktop that was caused by XP patiently waiting for a non-existent process to time out and would dutifully report the error in the Event Viewer (but not on screen). Maybe something like that is happening when the slow pages are trying to load?
Nelson
-----Original Message-----
From: Matt Raible [mailto:matt@raibledesigns.com]
Sent: Monday, June 20, 2011 8:26 PM
To: user@roller.apache.org; Dean Schulze
Subject: Re: Memory leak, slow performance in Roller 5 on Tomcat 7
I'd try bumping up your memory. Set a JAVA_OPTS (or CATALINA_OPTS) environment variable with something like the following:
-server -Xms256M -Xmx256M -XX:PermSize=128M
On Mon, Jun 20, 2011 at 7:45 PM, Dean Schulze <de...@yahoo.com>wrote:
>
>
> When loading the Front Page and the one other blog I have created the
> performance is good (< 3 seconds).
>
> The problems start when I click Main Menu from the Front Page:
>
> Main Menu: 115 seconds.
> Login: 45 seconds
> Entries (from MainMenu): 80 seconds
> Edit (from Edit Entries): > 60 seconds
>
> I also noticed that the content for the FrontPage does not get displayed.
>
> My hardware is Intel Core duo (about 4 years old). Windows XP,
> default JVM settings for Tomcat 7.0.16.
>
>
>
>
> ________________________________
> From: Dave <sn...@gmail.com>
> To: user@roller.apache.org; Dean Schulze <de...@yahoo.com>
> Sent: Sunday, June 19, 2011 3:15 PM
> Subject: Re: Memory leak, slow performance in Roller 5 on Tomcat 7
>
> On Sun, Jun 19, 2011 at 10:41 AM, Dean Schulze
> <de...@yahoo.com>
> wrote:
> > I installed the pre-packaged roller-5.0.0-tomcat.war on a new Tomcat
> 7.0.16 on Windows XP and created 2 users and 2 blogs. I let Roller 5
> run overnight and memory usage went from 237 MB to 262 MB.
> >
> > Is there a good reason for Roller to need 10% more memory when it
> > has
> been inactive, or is this a memory leak?
>
> I'm not aware of a memory leak, but it is certainly possible that
> something in Roller or some component of Roller has a leak.
>
>
> > Roller 5 is also frustratingly slow even when returning to
> > previously
> rendered pages.
> > First access is very slow, but I can understand that. Is there
> > something
> I can do
> > through configuration to improve performance?
>
> Roller works fine for me and page loads are adequately speedy. Can you
> be more specific about a) the environment under which you are running
> Roller (hardware, Java VM settings) and b) page load times.
>
> - Dave
>
Re: Memory leak, slow performance in Roller 5 on Tomcat 7
Posted by Matt Raible <ma...@raibledesigns.com>.
I'd try bumping up your memory. Set a JAVA_OPTS (or CATALINA_OPTS)
environment variable with something like the following:
-server -Xms256M -Xmx256M -XX:PermSize=128M
On Mon, Jun 20, 2011 at 7:45 PM, Dean Schulze <de...@yahoo.com>wrote:
>
>
> When loading the Front Page and the one other blog I have created the
> performance is good (< 3 seconds).
>
> The problems start when I click Main Menu from the Front Page:
>
> Main Menu: 115 seconds.
> Login: 45 seconds
> Entries (from MainMenu): 80 seconds
> Edit (from Edit Entries): > 60 seconds
>
> I also noticed that the content for the FrontPage does not get displayed.
>
> My hardware is Intel Core duo (about 4 years old). Windows XP, default JVM
> settings for Tomcat 7.0.16.
>
>
>
>
> ________________________________
> From: Dave <sn...@gmail.com>
> To: user@roller.apache.org; Dean Schulze <de...@yahoo.com>
> Sent: Sunday, June 19, 2011 3:15 PM
> Subject: Re: Memory leak, slow performance in Roller 5 on Tomcat 7
>
> On Sun, Jun 19, 2011 at 10:41 AM, Dean Schulze <de...@yahoo.com>
> wrote:
> > I installed the pre-packaged roller-5.0.0-tomcat.war on a new Tomcat
> 7.0.16 on Windows XP and created 2 users and 2 blogs. I let Roller 5 run
> overnight and memory usage went from 237 MB to 262 MB.
> >
> > Is there a good reason for Roller to need 10% more memory when it has
> been inactive, or is this a memory leak?
>
> I'm not aware of a memory leak, but it is certainly possible that
> something in Roller or some component of Roller has a leak.
>
>
> > Roller 5 is also frustratingly slow even when returning to previously
> rendered pages.
> > First access is very slow, but I can understand that. Is there something
> I can do
> > through configuration to improve performance?
>
> Roller works fine for me and page loads are adequately speedy. Can you
> be more specific about a) the environment under which you are running
> Roller (hardware, Java VM settings) and b) page load times.
>
> - Dave
>
Re: Memory leak, slow performance in Roller 5 on Tomcat 7
Posted by Dean Schulze <de...@yahoo.com>.
When loading the Front Page and the one other blog I have created the performance is good (< 3 seconds).
The problems start when I click Main Menu from the Front Page:
Main Menu: 115 seconds.
Login: 45 seconds
Entries (from MainMenu): 80 seconds
Edit (from Edit Entries): > 60 seconds
I also noticed that the content for the FrontPage does not get displayed.
My hardware is Intel Core duo (about 4 years old). Windows XP, default JVM settings for Tomcat 7.0.16.
________________________________
From: Dave <sn...@gmail.com>
To: user@roller.apache.org; Dean Schulze <de...@yahoo.com>
Sent: Sunday, June 19, 2011 3:15 PM
Subject: Re: Memory leak, slow performance in Roller 5 on Tomcat 7
On Sun, Jun 19, 2011 at 10:41 AM, Dean Schulze <de...@yahoo.com> wrote:
> I installed the pre-packaged roller-5.0.0-tomcat.war on a new Tomcat 7.0.16 on Windows XP and created 2 users and 2 blogs. I let Roller 5 run overnight and memory usage went from 237 MB to 262 MB.
>
> Is there a good reason for Roller to need 10% more memory when it has been inactive, or is this a memory leak?
I'm not aware of a memory leak, but it is certainly possible that
something in Roller or some component of Roller has a leak.
> Roller 5 is also frustratingly slow even when returning to previously rendered pages.
> First access is very slow, but I can understand that. Is there something I can do
> through configuration to improve performance?
Roller works fine for me and page loads are adequately speedy. Can you
be more specific about a) the environment under which you are running
Roller (hardware, Java VM settings) and b) page load times.
- Dave
Re: Memory leak, slow performance in Roller 5 on Tomcat 7
Posted by Dave <sn...@gmail.com>.
On Sun, Jun 19, 2011 at 10:41 AM, Dean Schulze <de...@yahoo.com> wrote:
> I installed the pre-packaged roller-5.0.0-tomcat.war on a new Tomcat 7.0.16 on Windows XP and created 2 users and 2 blogs. I let Roller 5 run overnight and memory usage went from 237 MB to 262 MB.
>
> Is there a good reason for Roller to need 10% more memory when it has been inactive, or is this a memory leak?
I'm not aware of a memory leak, but it is certainly possible that
something in Roller or some component of Roller has a leak.
> Roller 5 is also frustratingly slow even when returning to previously rendered pages.
> First access is very slow, but I can understand that. Is there something I can do
> through configuration to improve performance?
Roller works fine for me and page loads are adequately speedy. Can you
be more specific about a) the environment under which you are running
Roller (hardware, Java VM settings) and b) page load times.
- Dave