Parsing NGINX log files is needlessly slow.

[Alextopher]

Regular expressions considered harmful.

Mirror/nginx.go

Lines 119 to 120 in 046b562

	// "$time_local" "$remote_addr" "$request" "$status" "$body_bytes_sent" "$request_length" "$http_user_agent";
	quoteList := reQuotes.FindAllString(line, -1)

Splitting on the " characters is significantly more efficient, somewhere between 10x-100x so. This kind of performance improvement wouldn't be meaningless either. Somewhere between 500 MB and 1500 MB of data is passing through this parser daily.

This would make a good first issue 😉. You can easily compare the output of the previous version to a new version on gigabytes of data.