Mapping a resource name to its class loader should already be in 3.0.1 unless
the matching of the resource name is not working.
xxxxxxxxxxxxxxxxxxxxxxxx
Scott Stark
Chief Technology Officer
JBoss Group, LLC
xxxxxxxxxxxxxxxxxxxxxxxx
----- Original Message -----
From: "Adrian Brock" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Friday, August 30, 2002 12:12 PM
Subject: [JBoss-dev] Resource loading
> Hi,
>
> Somebody reported a peformance problem in the forums that
> is caused by inefficient loading of resources.
>
> With xerces in server/default/lib, they do
> new DomParser(...),
> this leads to a
> getResource("META-INF/services/org.apache.xerces.xni.parser.XMLParserConfiguration);
> from the ejb's classloader.
> This searches all jars in server/default/deploy and server/default/lib
> caching the result against the xerces UCL where it is located.
>
> The next request goes through the whole search again until it spots
> the cached version against xerces.
>
> The results for 1000 document parses (repeated 5 times in millis)
> 37204, 30764, 29743, 29563, 29493
>
> If you put xerces in the JBOSS_CLASSPATH the results are:
> 20820, 14571, 13369, 12578, 12658
>
> Does anybody have a problem with adding a cache for these global
> searches?
>
> The logic will be:
> Check the current classloader's cache
> Ask the current classloader
> Check the global cache <-- New bit
> Ask the repository (all classloaders, result goes in global cache)
> Not Found
>
> This gives the results:
> 25396, 16374, 16113, 14852, 14541
>
> About twice as fast once hot-spot kicks in.
>
> Full testsuite in progress...
>
> Regards,
> Adrian
>
> p.s. I probably won't respond to any reply until tomorrow
-------------------------------------------------------
This sf.net email is sponsored by: OSDN - Tired of that same old
cell phone? Get a new here for FREE!
https://www.inphonic.com/r.asp?r=sourceforge1&refcode1=vs3390
_______________________________________________
Jboss-development mailing list
[EMAIL PROTECTED]
https://lists.sourceforge.net/lists/listinfo/jboss-development
