Poor performance with a complex XSL stylesheet and large XML file
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Key: XALANC-593
URL: http://issues.apache.org/jira/browse/XALANC-593
Project: XalanC
Type: Bug
Components: XalanC
Versions: 1.9, 1.10
Environment: Platform: Windows XP Professional
Processor: 2GHz
RAM: 1Gb
Reporter: [EMAIL PROTECTED]
Xalan is performing poorly for a complex XSL transform on a large XML file.
I have the details below, and I am attaching files for XML input and the XSL
files.
There are 2 problems - one is that a 1.5MB XML file takes about 2 minutes to be
transformed.
This could be solved by changing the XSL? - any suggestions welcome!
The second problem is that the performance does not 'scale' with the size of
the XML input - I took the same XML file and halved the size, and the
performance more than doubled.
So it looks like performance worsens with the size of the XML input.
Performance in 1_10 is slightly worse than 1_9.
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Xalan-C_1_9_0-win32-msvc_60
Xalan -t:
1.5MB XML:
Source tree parsing time: 340.398336 milliseconds.
Stylesheet compilation time: 133.1826288 milliseconds.
Transformation time: 119932.1820512 milliseconds.
733Kb XML:
Source tree parsing time: 158.737142 milliseconds.
Stylesheet compilation time: 67.1794638 milliseconds.
Transformation time: 36380.30150 milliseconds.
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1.5MB XML:
Xalan-C_1_10_0-win32-msvc_60
Xalan -t:
Source tree parsing time: 255.852040 milliseconds.
Stylesheet compilation time: 68.236948 milliseconds.
Transformation time: 134556.299906 milliseconds.
733Kb XML:
Source tree parsing time: 142.380952 milliseconds.
Stylesheet compilation time: 68.1692120 milliseconds.
Transformation time: 41232.867330 milliseconds.
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