[Mulgara-dev] XAFix Impl notes

[Tate Jones]

Run with -verbose:gc -XX:+PrintGCTimeStamps -XX:+PrintGCDetails for  
accurate memory and gc activity.

I doubt you are using 1Gb as you command line indicates no Xmx  
setting.  Therefore you are at a max of 256Mb (server mode) I  believe.

By design Mulgara shouldn't use much memory. However increasing the  
number of concurrent sessions will increase memory requirements.

On 14/12/2006, at 2:09 AM, David Moll wrote:

> I just wanted to update on some of the testing that I have been  
> doing with the XAFix implementation.  It works very well, and I  
> have not been able to find any showstopping issues for us.
>
>
>
> I’m running Mulgara on a Win2k3 Server (still, I know) with Dual  
> Xeon 3.2 GHz Dual-Core processors and 4 GB of RAM.  I’m using the  
> 64-bit 1.5.0_09 JVM, and invoking Mulgara with:
>
>
>
> java -jar mulgara-1.0.0.jar -l "file:/F:/Program Files (x86)/ 
> mulgara-1.0.0/log4j-conf.xml" -k 192.168.10.205 -o 192.168.10.205
>
>
>
> We currently have around 11.6 million triples in the datastore.   
> For my testing I have a text file with ~1800 itql queries in it.   
> We have a .NET application that uses the SOAP interface to query  
> Mulgara.  I point the app at a directory and it executes all the  
> queries stored in the files in that directory.  Prior to the XAFix  
> implementation I could really only run one instance of this at a  
> time.  Now, I have run as many as 6 separate instances, all  
> executing queries against the data store without any exceptions  
> being thrown.
>
>
>
> Memory usage seems to have improved as well.  I left the queries  
> running (cycling) for about 6 days, and the peak memory usage  
> barely broke 1 GB.  Of course, there is the question of how  
> accurate the Windows Task Manager is.
>
>
>
> I’m looking in to figuring out the information for the “Update  
> Patterns” information.
>
>
>
> ~Dave
>
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Tate Jones
tate at bluedog.com.au