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Posted to dev@tomcat.apache.org by bu...@apache.org on 2007/10/31 05:18:28 UTC

DO NOT REPLY [Bug 43742] New: - .tag compiles performed one at a time -- extremely slow

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http://issues.apache.org/bugzilla/show_bug.cgi?id=43742

           Summary: .tag compiles  performed one at a time -- extremely slow
           Product: Tomcat 6
           Version: 6.0.9
          Platform: Other
        OS/Version: other
            Status: NEW
          Severity: normal
          Priority: P3
         Component: Jasper
        AssignedTo: tomcat-dev@jakarta.apache.org
        ReportedBy: aberglas@rsa.com


Jasper is *extremely* slow at compiling .tag files packaged in a .jar -- tens 
of seconds per JSP.

One cause is that the javac compiles are very slow, despite there being 
relatively little java code to compile.  (About 60% of total time.)  This is 
probably because the compiler is being invoked once for each .tag, rather than 
just once for all the generated .java files.  If they could be batched up and 
compiled at the end I suspect there would be a huge improvement.

(All of Tomcat/Jasper takes less time to javac on my machine than running up 
one .jsp that includes a lot of .tags.)

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DO NOT REPLY [Bug 43742] - .tag compiles performed one at a time -- extremely slow

Posted by bu...@apache.org.
DO NOT REPLY TO THIS EMAIL, BUT PLEASE POST YOUR BUG�
RELATED COMMENTS THROUGH THE WEB INTERFACE AVAILABLE AT
<http://issues.apache.org/bugzilla/show_bug.cgi?id=43742>.
ANY REPLY MADE TO THIS MESSAGE WILL NOT BE COLLECTED AND�
INSERTED IN THE BUG DATABASE.

http://issues.apache.org/bugzilla/show_bug.cgi?id=43742


markt@apache.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|normal                      |enhancement




------- Additional Comments From markt@apache.org  2008-01-07 15:43 -------
I've no doubt this could be better.

The fix for bug43878 may offer some improvements when not using development mode.

Improving this further is likely to require fairly major changes to Jasper so I
am marking this as an enhancement.

If you (or anyone else) feels the urge to scratch this itch then patches (in
diff -u format) are always welcome.

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