test: add focused render microbenchmarks#2
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Summary
RenderBuffermicrobenchmarks for changed vs no-opSetCellRenderBufferarea-op microbenchmarks for full vs partialFill/ClearTerminalScreenandStyledString.Drawmicrobenchmarks to compare hot paths onScreenBufferandTerminalScreenVerification
go test ./...go test -run '^$' -bench 'Benchmark(RenderBufferSetCell|RenderBufferAreaOps|TerminalScreenSetCell|TerminalScreenRenderSparseUpdates|StyledStringDrawScreenBuffer|StyledStringDrawVariants)$' -benchmem ./Latest Local Benchmarks
BenchmarkRenderBufferSetCell/changed:12.93 ns/opBenchmarkRenderBufferSetCell/noop:13.32 ns/opBenchmarkRenderBufferAreaOps/fill/full:8330 ns/opBenchmarkRenderBufferAreaOps/fill/partial:851.6 ns/opBenchmarkRenderBufferAreaOps/clear/full:8257 ns/opBenchmarkRenderBufferAreaOps/clear/partial:750.5 ns/opBenchmarkTerminalScreenSetCell/changed:16.69 ns/opBenchmarkTerminalScreenSetCell/noop:16.64 ns/opBenchmarkTerminalScreenRenderSparseUpdates:23056 ns/op,5124 B/op,180 allocs/opBenchmarkStyledStringDrawScreenBuffer:30889 ns/op,128 B/op,2 allocs/opBenchmarkStyledStringDrawVariants/screenbuffer/plain:34023 ns/op,130 B/op,2 allocs/opBenchmarkStyledStringDrawVariants/screenbuffer/ansi:31192 ns/op,130 B/op,2 allocs/opBenchmarkStyledStringDrawVariants/terminalscreen/plain:48268 ns/op,112 B/op,1 allocs/opBenchmarkStyledStringDrawVariants/terminalscreen/ansi:49148 ns/op,117 B/op,1 allocs/op