I didn't know about any performance decrease for the CSS extension in
GeoServer 2.3 compared to 2.2 - to my knowledge they are using the exact
same conversion routine.  It's possible that GeoServer is "locking up" due
to memory use - what are your JVM settings? (in particular the -Xmx and
-XX:MaxPermSize options are of interest.) If you don't mind sharing your
CSS style I'd be interested in seeing it as well.

I do have some changes that I've been sitting on for a while which should
improve performance, I'll try and get those released ASAP.

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

On Wed, May 1, 2013 at 12:25 PM, Simon Hartley <[email protected]>wrote:

> Hiya,****
>
> ** **
>
> When using the CSS plugin and pressing the Submit button to save a CSS
> style, it seems to be MUCH slower in GeoServer 2.3.x than 2.2.x versions.*
> ***
>
> For our larger styles (150 lines of CSS becoming 1200 lines of SLD) it has
> gone from a reasonable speed,****
>
> to forcing us to restart GeoServer rather than wait for it to finish. Has
> anyone else noticed this?****
>
> ** **
>
> Also (only tried in GeoServer 2.3.1) , using mark: url() now forces us to
> specify a protocol, is this expected?****
>
> ** **
>
> Many thanks****
>
> ** **
>
> Simon Hartley****
>
> ** **
>
> ** **
>
> .****
>
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