writebuffer

README

Elementary write of a buffer to a buffer

The target is of type *buffer.Bytes and the buffer is simply written to it.

• fmt.Fprint
• Write() method of buffer package with a conversion to bytes
• WriteTo() method of buffer package
• io.CopyBuffer()

As fmt offers more possibilities, it is about 6x heavier than the fastest alternate solution. The byte conversion keeps the buffer to copy intact and other methods are thus heavier because it must be re-filled.

This benchmark is irrelevant if any formatting occurs during writing.

>go test -bench=. ./src/writebuffer

Results

go version go1.12.6 windows/amd64
pkg: github.com/iWdGo/GoCompilerEfficiency/src/writebuffer
BenchmarkWriteBuffer-4           3000000               481 ns/op
BenchmarkWriteToBuffer-4         1000000              1745 ns/op
BenchmarkIoCopyBuffer-4          1000000              2304 ns/op
BenchmarkFmtWriteBuffer-4         500000              3783 ns/op
PASS

Documentation

Overview

writebuffer evaluates differences between fmt, io and buffer packages to write a buffer to another buffer