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Posted to j-users@xalan.apache.org by "Karr, David" <da...@wamu.net> on 2006/03/24 23:58:20 UTC
Strange performance degradation upgrading from xalan-j 2.4.1 to 2.7.0 on Solaris
I built a test case with an xslt in my messaging bus. I tested it on my
laptop with both Xalan-J 2.4.1 and Xalan-J 2.7.0 (although that was a
while ago). I found that Xalan-J 2.7.0 improved performance a little
bit. I then copied the same test case to a Solaris 8 box. I found that
the test case with Xalan-J 2.7.0 took TWICE as long than with Xalan-J
2.4.1. I tried it several times, with the same results (in each
version). I'm toggling between the two Xalan versions by using the
"endorsed" directory of the JRE. I put the xalan.jar, xml-apis.jar,
xercesImpl.jar, and serializer.jar from Xalan-J 2.7.0 into the endorsed
directory, and I rename the directory when I test it with version 2.4.1.
My test case is running 1000 of the same transformation, synchronously
on the same thread. I'm using a cached Templates object to get the
Transformer object from.
Is there something simple that could be causing this unusual performance
degradation in version 2.7.0?
Re: Strange performance degradation upgrading from xalan-j 2.4.1 to 2.7.0
on Solaris
Posted by Brian Minchau <mi...@ca.ibm.com>.
David,
Nice that it ran faster on your laptop. Too bad about the Solaris 8 box.
Makes me think of some sort of synchronization issue.
Can you tell me more about your testcase?
- Brian
- - - - - - - - - - - - - - - - - - - -
Brian Minchau
XSLT Development, IBM Toronto
e-mail: minchau@ca.ibm.com
"Karr, David"
<david.karr@wamu.
net> To
<xa...@xml.apache.org>
03/24/2006 05:58 cc
PM
Subject
Strange performance degradation
upgrading from xalan-j 2.4.1 to
2.7.0 on Solaris
I built a test case with an xslt in my messaging bus. I tested it on my
laptop with both Xalan-J 2.4.1 and Xalan-J 2.7.0 (although that was a
while ago). I found that Xalan-J 2.7.0 improved performance a little
bit. I then copied the same test case to a Solaris 8 box. I found that
the test case with Xalan-J 2.7.0 took TWICE as long than with Xalan-J
2.4.1. I tried it several times, with the same results (in each
version). I'm toggling between the two Xalan versions by using the
"endorsed" directory of the JRE. I put the xalan.jar, xml-apis.jar,
xercesImpl.jar, and serializer.jar from Xalan-J 2.7.0 into the endorsed
directory, and I rename the directory when I test it with version 2.4.1.
My test case is running 1000 of the same transformation, synchronously
on the same thread. I'm using a cached Templates object to get the
Transformer object from.
Is there something simple that could be causing this unusual performance
degradation in version 2.7.0?