Performance Profiling of XSLT Stylesheet

Whether you are trying to identify a performance issue that is causing your production XSLT transformation to not meet customer expectations, or you are trying to proactively identify issues prior to deploying your XSLT transformation, using the XSLT profiler feature is essential to helping you save time and ultimately ensure a better performing, more scalable XSLT transformation.

The profiling is available for the XSLT processors that are bundled with Oxygen (Saxon 6.5.5, Saxon EE, and Xalan 2.7.1). This allows you to profile XSLT 1.0, 2.0, or 3.0 stylesheets.

Invocation Tree View

Using the Invocation Tree view, also known as a call tree, you can examine how style instructions are processed in a top down manner. The profiling result shows the duration time for each of the style instructions (including the time needed for its child instructions and, when an instruction is expanded, how the instruction time is composed from the child instruction times).

Invocation tree view

Hotspots View

Using the profiler Hotspots view, you can immediately detect the time the processor spent on each instruction. The hotspot displays the inherent time of the instruction (the total time processing that instruction, minus the time processing its child instructions). When a hotspot is expanded, you can see all the different paths that instructions were called from (a reverse invocation tree), the number of invocations, the instruction time on that path, and the percentage that path contributed to the instruction's total execution time.

Hotspots view

What's New in
Oxygen XML Editor 27.1

March 24, 2025

Oxygen XML Editor version 27.1 expands upon the powerful features introduced in previous releases, including advanced AI actions, and AI-enabled XProc pipelines, integration with DITA-OT 4.3.0 and upgrades to the Git Client add-on.

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What's New in
Oxygen JSON Editor 27.1

March 24, 2025

Oxygen JSON Editor version 27.1 received a series of AI-based improvements and accelerates JSON document creation by automatically inserting required schema-defined structures when using the Author editing mode.

Learn more