This isn't super surprising to me. String comparisons are super slow if not handle with care, and even then may be surprisingly slow. This does a LOT of string

This isn't super surprising to me. String comparisons are super slow if not handle with care, and even then may be surprisingly slow. This does a LOT of string comparisons. Depending on the requirements, sliding a window through doing byte comparisons may be better. https://golang.org/src/bytes/bytes_decl.go?s=522:550#L7 https://golang.org/src/bytes/bytes_decl.go?s=522:550#L7 EDIT: I believe paper trail does or did have a limitation on case sensitive searching. You can imagine why they may be doing this if you consider the performance implications.