https://bz.apache.org/bugzilla/show_bug.cgi?id=62713

Mark Thomas <ma...@apache.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 OS|                            |All
         Resolution|---                         |WONTFIX
             Status|NEW                         |RESOLVED

--- Comment #1 from Mark Thomas <ma...@apache.org> ---
Caching has to be per JSP / tag file as each can have a different set of
imports.

The look-ups that Tomcat is performing are those required by the spec. The
additions in the EL 3.0 spec have significantly added to the overhead
associated with using EL in some scenarios. 

There is an optimisation in 8.5.33 that might help. It depends on the type of
expressions that are being used.

With a concrete, real-world example of a poorly performing JSP we can look to
see what further optimisations might be possible although the code is already
heavily optimised.

Generally, the users mailing list is the place to start when facing a
performance issue.

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