Re: [Geotools-devel] removing xerces dependency

[David W. <dwi...@op...>]

Having poked around with MAT (http://www.eclipse.org/mat/) a few weeks
back, I think we'll get a decent win by avoiding the use of two embedded
database solutions.  Both H2 and BerkeleyDB had disk caches taking up
around 4MB in my minimally configured GeoServer test instance.

--
David Winslow
OpenGeo - http://opengeo.org/

On Wed, Oct 24, 2012 at 9:13 AM, Justin Deoliveira <jde...@op...>wrote:

>
>
> On Tue, Oct 23, 2012 at 1:49 PM, Chris Holmes <ch...@op...> wrote:
>
>>
>>
>> On Tue, Oct 23, 2012 at 9:08 AM, Andrea Aime <
>> and...@ge...> wrote:
>>
>>> On Tue, Oct 23, 2012 at 2:59 PM, Justin Deoliveira <jde...@op...>
>>> wrote:
>>>
>>> > Indeed. And also while we are at it i will pose the question. There is
>>> also
>>> > the opportunity to prune out some other xml dependencies as well.
>>> Namely
>>> > jdom, xpp and stax from what i can tell. All seem to have equivalents
>>> built
>>> > into the jdk. Is it worth pruning them out?
>>>
>>> Well, it is not a win as big as with Xerces:
>>>
>>> aaime@hydra:~/devel/git-gs/src/web/app/target/geoserver/WEB-INF/lib$
>>> ls -lh stax-*
>>> -rw-r--r-- 1 aaime aaime 176K 2010-03-03 20:05 stax-1.2.0.jar
>>> -rw-r--r-- 1 aaime aaime  26K 2010-01-25 10:01 stax-api-1.0.1.jar
>>> aaime@hydra:~/devel/git-gs/src/web/app/target/geoserver/WEB-INF/lib$
>>> ls -lh jdom*
>>> -rw-r--r-- 1 aaime aaime 150K 2010-01-25 08:47 jdom-1.0.jar
>>> aaime@hydra:~/devel/git-gs/src/web/app/target/geoserver/WEB-INF/lib$ ls
>>> -lh xpp*
>>> -rw-r--r-- 1 aaime aaime 118K 2010-01-25 09:18 xpp3-1.1.3.4.O.jar
>>> -rw-r--r-- 1 aaime aaime  25K 2010-01-25 09:58 xpp3_min-1.1.4c.jar
>>>
>>> However, it does not make sense to duplicate what we already have for
>>> free, either.
>>> If it's not too much trouble, why not remove those as well?
>>>
>>>
>> +1 - seems like removing them could help more with like our weird memory
>> bloat more than the actual download size no?
>>
>>
> I actually didn't measure any noticeable difference after removing xerces,
> although I was only trying to measure permgen overhead which unfortunately
> doesn't give you any information about individual class sizes.
>
>>  Cheers
>>> Andrea
>>>
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>>
>>
>
>
> --
> Justin Deoliveira
> OpenGeo - http://opengeo.org
> Enterprise support for open source geospatial.
>
>
>
> ------------------------------------------------------------------------------
> Everyone hates slow websites. So do we.
> Make your web apps faster with AppDynamics
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