Use varhandle for array access in CBORGenerator - #752
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Added comments explaining the choice of float representation in _writeFloatNoCheck method.
Removed commented-out code regarding float handling.
| * Utility class that provides {@link VarHandle} instances for efficient | ||
| * multi-byte primitive writes to byte arrays. Falls back gracefully | ||
| * if VarHandles are not available (e.g., on some Android runtimes). | ||
| */ |
cowtowncoder
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@pjfanning Any chance for brief jmh perf verification? |
cowtowncoder
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CBORGenerator
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@cowtowncoder I added a benchmark to https://github.com/pjfanning/double-reader-writer Got these results on my laptop (Java 25) cborBaselineWriteDoubleArray is current 3.x code |
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The VarHandle path is a single store instruction on most JVMs, versus 8 separate shift-cast-store operations. The same utility could be shared with the Smile module if desired.
Fallback to existing code if var handles are not supported, eg Android.