You can use the Task Manager to see how much memory the various
components use and then adjust your MaxPermSize accordingly.
The only time I noticed that it was using large amounts of memory was
loading and installing plugins.
I had to increase my memory for that.
I noticed also that noone has said what the preferred method for this
is but I found a reference when I updated mine.
Check to see if you have the netbeans.conf file, I loaded mine in the
.netbeans\6.1\etc directory under my windows folder like so:
<drive_letter>:\Documents and Settings\<your user id>\.netbeans
\6.1\etc
Here is the contents
# ${HOME} will be replaced by JVM user.home system property
netbeans_default_userdir="${HOME}/.netbeans/6.1"
# Options used by NetBeans launcher by default, can be overridden by
explicit
# command line switches:
netbeans_default_options="-J-client -J-Xms32m -Xmx400m -J-
XX:PermSize=32m -J-XX:MaxPermSize=400m -J-
Dnetbeans.logger.console=true -J-ea -J-
Dapple.laf.useScreenMenuBar=true -J-XX:+UseConcMarkSweepGC -J-XX:
+CMSClassUnloadingEnabled -J-XX:+CMSPermGenSweepingEnabled"
# (Note that a default -Xmx is selected for you automatically.)
# For JVMs which does not support Concurrent Mark & Sweep garbage
collection
# algorithm remove "-J-XX:+UseConcMarkSweepGC -J-XX:
+CMSClassUnloadingEnabled
# -J-XX:+CMSPermGenSweepingEnabled" part of options
# (see http://wiki.netbeans.org/wiki/view/FaqGCPauses)
# Default location of JDK, can be overridden by using --jdkhome <dir>:
#netbeans_jdkhome="/path/to/jdk"
# Additional module clusters, using ${path.separator} (';' on Windows
or ':' on Unix):
#netbeans_extraclusters="/absolute/path/to/cluster1:/absolute/path/to/
cluster2"
On Dec 16, 3:45 pm, Sang Shin <sang.s...@sun.com> wrote:
> Sang Shin wrote:
>
> > By the way, please take a look at the FAQ on this and see if it helps.
>
> >http://wiki.netbeans.org/FaqSlowNetBeans
>
> > -Sang
>
> Another suggestion.
>
> Hello,
>
> when you do not have plenty of RAM, the most important parameter is (in my
> opinion) the maximum heap size allowed for NetBeans. If you set it too low,
> NetBeans have to garbage-collect frequently, which slows the IDE. If you set
> it
> too high compared to the total amount of RAM available in your system, you
> leave
> too small amount of memory for other applications (such that the system starts
> to swap) and for the disk cache (which makes all disk I/O operations much
> slower).
>
> You have 1 GB of RAM - that is not much for running Tomcat and NetBeans and
> developing J2EE applications. The easiest and the most reliable answer is: Buy
> more RAM. Otherwise, you should carefully tune your JVM settings and save
> every
> piece of RAM. I think that 600 MB limit is too high - try to make it lower,
> e.g.
> 400 MB, by running NetBeans with switch -J-Xmx400M.
>
> Reference:http://performance.netbeans.org/howto/jvmswitches/index.html
>
> Similarly, you could tweak also Tomcat's settings such that it consumes less
> memory.
>
> I guess you use Linux (I deduce that from your e-mail footer). You can save a
> lot of memory if you use some lightweight desktop environment, e.g. Xfce
> instead
> of Gnome/KDE. You can save even more memory with some tiny Linux distribution
> targeted on older computers, such as Knoppix or DamnSmallLinux (DSL).
>
>
>
>
>
>
>
> > Sang Shin wrote:
> >> I will ask NetBeans engineers on this.
>
> >> -Sang Shin
>
> >> kamruddin.nur wrote:
> >>> Hi,
> >>> I'm running Netbeans 6.1 with jdk1.6, J2EE5, tomcat 6 on my 2GHz
> >>> celeron processor with 1GB RAM.
>
> >>> My problem:
> >>> Netbeans start up way too slow,
> >>> once started works stable but sometimes new window freezez for a while
> >>> and runs again. It doesn't crush but stays unresponsive for a while.
>
> >>> My netbeans heap size is 85MB but it sucks up around 600MB of my OS
> >>> RAM, leaving around 100 MB RAM for other applications.
>
> >>> What can I do to make it start, run faster and responsive like
> >>> eclipse.
>
> >>> Your help is much appreciated.
>
> >>> Regards,
> >>> K M Nur
> >>>http://k-linuxtechs.blogspot.com
>
> --
> ---------------------------------------------------------------
> **** JavaFX course starts from Jan. 10th, 2008 ***
> http://www.javapassion.com/javafx
>
> Sang Shin, sang.s...@sun.com
> http://www.javapassion.com/SangShinSchedule.html
> (Life is worth living... with Passion!)
> ---------------------------------------------------------------- Hide quoted
> text -
>
> - Show quoted text -
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