[jboss-dev] Further profling: Where should I focus?

[Brian Stansberry]

On 01/05/2010 09:54 AM, Bill Burke wrote:
>
>
> Brian Stansberry wrote:
>> On 01/05/2010 09:24 AM, Bill Burke wrote:
>>>>> Instead of a jboss-classloading.xml, why not reading the manifest?  Or
>>>>> is somebody working on that?
>>>> This is something we're definitely planning.
>>>> I once discussed it with Scott what we should support.
>>>> Afair, we agreed on supporting both.
>>>> But as you can see from SS+OSGi_repo story, this is not as trivial as it
>>>> looks.
>>>>
>>>> Once we have this fully in place, DML's modularization, etc,
>>>> we should make sure we can re-use stuff from SS's repo.
>>>
>>> There's already a osgi maven bundle plugin.  Why not use it?
>>>
>>> http://felix.apache.org/site/apache-felix-maven-bundle-plugin-bnd.html
>>>
>>> Why not use that to generate exported packages?  Just tried it out.
>>> Pretty cool.
>>>
>>
>> Looks like that can handle exporting all packages via a simple wildcard.
>>
>
> You don't even need to do that.  Just put in the plugin with a regular
> jar package.
>
>
>
> <plugins>
>     <plugin>
>       <artifactId>maven-jar-plugin</artifactId>
>       <configuration>
>         <archive>
>            <manifestFile>
> ${project.build.outputDirectory}/META-INF/MANIFEST.MF
>            </manifestFile>
>         </archive>
>       </configuration>
>      </plugin>
>      <plugin>
>        <groupId>org.apache.felix</groupId>
>         <artifactId>maven-bundle-plugin</artifactId>
>         <version>2.0.1</version>
>         <executions>
>           <execution>
>             <id>bundle-manifest</id>
>             <phase>process-classes</phase>
>             <goals>
>               <goal>manifest</goal>
>             </goals>
>           </execution>
>         </executions>
>         </plugin>
>       </plugins>
>
> The question is though, does the VFS get bypassed if this is put in?
> Because scanning for packages isn't slow once the VFS context is
> initialized.  The time is all within initializing the VFS context for
> the jar.
>

I'm curious how much difference VFS3 will make in this. I've asked John 
Bailey to ping you about getting ahold of your test.

> Or, is VFS still used for every deployed jar because of subdeployments?
>

Most of our jars are not packaged in deployments, they're added to the 
classpath via conf/jboss-service.xml. I'm looking now at what the 
structural deployers do with a simple single-file deployment like that.


-- 
Brian Stansberry
Lead, AS Clustering
JBoss by Red Hat