Aleksa Sarai 70d3b19776 unvis: improve performance by reducing allocations ... By using a buffer, we can avoid a bunch of small allocations that the previous implementation did. Based on a few small benchmarks, the performance improvement is very stark (~3x faster for strings that don't require any escaping, and ~20% faster for multi-byte utf8 strings): goos: linux goarch: amd64 pkg: github.com/vbatts/go-mtree/pkg/govis cpu: AMD Ryzen 7 7840U w/ Radeon 780M Graphics │ before │ after │ │ sec/op │ sec/op vs base │ Unvis/NoChange-16 1501.0n ± 0% 497.7n ± 1% -66.84% (p=0.000 n=10) Unvis/Binary-16 1317.5n ± 3% 934.9n ± 9% -29.04% (p=0.000 n=10) Unvis/ASCII-16 1325.5n ± 1% 616.8n ± 1% -53.47% (p=0.000 n=10) Unvis/German-16 1884.5n ± 1% 986.9n ± 2% -47.63% (p=0.000 n=10) Unvis/Russian-16 4.636µ ± 1% 3.796µ ± 1% -18.11% (p=0.000 n=10) Unvis/Japanese-16 3.453µ ± 1% 2.867µ ± 1% -16.99% (p=0.000 n=10) geomean 2.072µ 1.206µ -41.77% Signed-off-by: Aleksa Sarai <cyphar@cyphar.com>		2025-09-23 04:40:23 +10:00
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govis	unvis: improve performance by reducing allocations	2025-09-23 04:40:23 +10:00