50% speedup. Fix#91
to run the benchmark:
go test -test.run=NONE -bench=".*" -test.benchmem=true ./transform/ > new.txt
to compare the results:
/usr/local/go/misc/benchcmp baseline.txt new.txt
Speedup and memory improvements
benchmark old ns/op new ns/op delta
BenchmarkChain 101219 50453 -50.15%
BenchmarkTransform 51625 45531 -11.80%
benchmark old allocs new allocs delta
BenchmarkChain 222 103 -53.60%
BenchmarkTransform 135 106 -21.48%
benchmark old bytes new bytes delta
BenchmarkChain 23919 10998 -54.02%
BenchmarkTransform 11858 10665 -10.06%
