How to increase performance of ExtendedDataTable rendering in Richfaces 3.3

[bungrudi]

Hi all,

Currently we are having a concern over the loading time of a page in our application.

This page have a RichExtendedDataTable with 20 columns, and we, for our very limited knowledge, assumed that the rendering of this table is the cause.

From the profiling result which you can see here, one source of this slowliness boiled down to class SimpleCharStream. (profiled scenario is loading the page and rerendering the table once)

If this is of any importance, inside the table I'm using a lot of <c:if />s to programmatically decide whether a <rich:column /> should be built in the component tree or not.

Thus my questions,

1. could i have done something wrong?

2. (assuming this is a problem,) is this a known problem? (should i post an issue in JIRA?)

3. any solution/workaround for this?

Many thanks before. =)

Rgds,

Rudi

PS: our stack

- JBoss AS 4.2.1

- Richfaces 3.3 on JSF 1.2

- Seam 2.1.1

- Yourkit java profiler 9.5.0

- Windows XP pro SP3

[boy18nj]

Following are my tips:

1) try to use small names for id, don't let jsf generates id for,wherever possible define the id's

2) prependid should be false

3) use seam component as a factory component so that on every rerender database request is not made, only one time records are fetched.

4) use pagination to display 10 records per page

http://www.jsfcentral.com/articles/speed_up_your_jsf_app_2.html

read part 1 and part 2.

Don't forget to mark it helpful.

[ilya_shaikovsky]

most slowdowns caused by the header menus. if it's valid option for you could try to turn off and will see performance improved.