Please answer these questions before submitting your issue. Thanks!

1. What version of Go are you using (go version)?
   go1.6 darwin/amd64
2. What operating system and processor architecture are you using (go env)?
   GOHOSTARCH="amd64"
   GOHOSTOS="darwin"
   GOOS="darwin"
3. What did you do?
   If possible, provide a recipe for reproducing the error.
   A complete runnable program is good.
   A link on play.golang.org is best.

I found Go regex is too slow. I compared the regex perf between java and Go:
Go code:

text := "$value1$;$value2$;$value3$"
    for i := 0; i < 1000000; i++ {
        match := pattern.FindAllStringSubmatch(text, -1)
        for _, _ = range match {
        }
    }

Java code:

        String value = "$value1$;$value2$;$value3$";
        for (int i = 0; i < 1000000; i++) {
            Matcher matcher = pattern.matcher(value);
            while (matcher.find()) {
                // do nothing
            }
        }

Go costs 2.702s and Java costs 472ms.

1. What did you expect to see?
   I think Go regex should not slower than Java so much.
2. What did you see instead?
   Go regex is much slower than Java.