FW: JSP, performance analysis?

[Israel Olalla <is...@newknow.com>]

Hi,
 
    Trying to understand a problem or performance that we have in our
application, we've seen some data of interest, Those files are the result of
OptimizeIt CPU profiler output - Sampler, Those files show the execution of
the same JSP and logic in three moments.(well i send a file by mail ...
cause the mailer doent accept more than 100 kb)
    
    When working with JSP we have a serious degradation problem with acces
to filesystem:
 
        - java.io.Win32FileSystem.getLastModifiedTime 
 
    There's some way to desactivate the control of changes in JSP file's?.
In order to avoid access to FileSystem.?
     
 
    Finally our problem was with Taglibs iterate ... logic ... it creates
thousands... of objects ... and the GC eats the whole machine.... but that's
an advise to other list.

Thanks for you patience and time

This message and any files transmitted with it are confidential and intended
solely for the use of the individual or entity to whom they are addressed.
No confidentiality or privilege is waived or lost by any wrong transmission.
If you have received this message in error, please immediately destroy it
and kindly notify the sender by reply email.
You must not, directly or indirectly, use, disclose, distribute, print, or
copy any part of this message if you are not the intended recipient.
Opinions, conclusions and other information in this message that do not
relate to the official business of Newknow shall be understood as neither
given nor endorsed by it. 

  

Re: FW: JSP, performance analysis?

[cm...@yahoo.com]

On Tue, 4 Sep 2001, Israel Olalla wrote:

>     When working with JSP we have a serious degradation problem with acces
> to filesystem:
>
>         - java.io.Win32FileSystem.getLastModifiedTime

Try again with 3.3.

Tag pooling is not enabled by default because many tags are buggy, so
you'll need to edit server.xml and enable it. Reloading has been rewritten
and now it shouldn't add any overhead.

Few bigger optimizations are on the works and will be available as a
separate module - togheter with 1.2 features ( jasper34 )

Costin

>
>     There's some way to desactivate the control of changes in JSP file's?.
> In order to avoid access to FileSystem.?
>
>
>     Finally our problem was with Taglibs iterate ... logic ... it creates
> thousands... of objects ... and the GC eats the whole machine.... but that's
> an advise to other list.
>
> Thanks for you patience and time
>
> This message and any files transmitted with it are confidential and intended
> solely for the use of the individual or entity to whom they are addressed.
> No confidentiality or privilege is waived or lost by any wrong transmission.
> If you have received this message in error, please immediately destroy it
> and kindly notify the sender by reply email.
> You must not, directly or indirectly, use, disclose, distribute, print, or
> copy any part of this message if you are not the intended recipient.
> Opinions, conclusions and other information in this message that do not
> relate to the official business of Newknow shall be understood as neither
> given nor endorsed by it.
>
>
>
>