benchmark old ns/op new ns/op delta
BenchmarkHandler_ParseSessionID 19985 4465 -77.66%
benchmark old allocs new allocs delta
BenchmarkHandler_ParseSessionID 61 2 -96.72%
benchmark old bytes new bytes delta
BenchmarkHandler_ParseSessionID 6560 96 -98.54%
Another improvement: https://github.com/igm/sockjs-go/pull/30