When trying to make my editor, KeenWrite[0], render TeX in real time using JMathTeX[1], I used initially used JFreeSVG[2] to generate SVG images (not rasterize

When trying to make my editor, KeenWrite[0], render TeX in real time using JMathTeX[1], I used initially used JFreeSVG[2] to generate SVG images (not rasterize them). After running the code through async-profiler[3], it turned out that JFreeSVG was using Java's NumberFormat to convert double values to strings. Comparative benchmarks when generating 1,000,000 SVGs from TeX expressions, 1 run each, no warm-up: * NumberFormat: 778060 milliseconds (~13 minutes) * RyuDouble: 421160 milliseconds (~7 minutes) Eventually I replaced JMathTeX with my NTS fork[4] and replaced the JFreeSVG library with a custom class to create SVG document strings[5]. Going from non-real-time TeX to real-time TeX rendering was worth it. [0]: https://github.com/DaveJarvis/keenwrite https://github.com/DaveJarvis/keenwrite [1]: https://jmathtex.sourceforge.net/ https://jmathtex.sourceforge.net/ [2]: https://github.com/jfree/jfreesvg/ https://github.com/jfree/jfreesvg/ [3]: https://github.com/async-profiler/async-profiler https://github.com/async-profiler/async-profiler [4]: https://github.com/DaveJarvis/KeenType https://github.com/DaveJarvis/KeenType [5]: https://github.com/DaveJarvis/KeenType/blob/main/svg/src/main/java/com/whitemagicsoftware/keentype/svg/KtSvgFormatWriter.java https://github.com/DaveJarvis/KeenType/blob/main/svg/src/mai... [6]: https://github.com/jfree/jfreesvg/pull/30 https://github.com/jfree/jfreesvg/pull/30 (bonus link) P.S. Eventually, I replaced the Ryu Algorithm with an even faster (and simpler) double-to-string conversion: https://github.com/DaveJarvis/KeenType/blob/main/tex/src/main/java/com/whitemagicsoftware/keentype/render/KtFastDouble.java https://github.com/DaveJarvis/KeenType/blob/main/tex/src/mai...