syncthing/syncthing — pull request #842 by AudriusButkevicius (2014-10-13 23:21:12+00:00)
Title: Cache ignore file matches

A bit of a pointless thing for desktops, but it seemed like an interesting challenge.
I bet ARM people will benefit.

```
BenchmarkMatch	50000	35664 ns/op
BenchmarkMatchCached	20000000	111 ns/op
```