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Bryan Boreham a50cac7674 filters: use faster regexp package (#5315) ... * regexp-filter: improve benchmark Add a few more cases based on real-world usage. Also simplify the loop to just run the number of times requested. Go benchmarks run 'N' times to reach a duration, default 1 second. Previously the benchmark was running N*1000000 times, which took 7 seconds minimum for some cases. * regexp filter: use modified package with optimisations See https://github.com/grafana/regexp/tree/speedup#readme Includes the following changes proposed upstream: * [regexp: allow patterns with no alternates to be one-pass](https://go-review.googlesource.com/c/go/+/353711) * [regexp: speed up onepass prefix check](https://go-review.googlesource.com/c/go/+/354909) * [regexp: handle prefix string with fold-case](https://go-review.googlesource.com/c/go/+/358756) * [regexp: avoid copying each instruction executed](https://go-review.googlesource.com/c/go/+/355789) * [regexp: allow prefix string anchored at beginning](https://go-review.googlesource.com/c/go/+/377294) * Add grafana/regexp to vendor directory		4 years ago
..
compile.go	filters: use faster regexp package (#5315)	4 years ago
doc.go	filters: use faster regexp package (#5315)	4 years ago
make_perl_groups.pl	filters: use faster regexp package (#5315)	4 years ago
op_string.go	filters: use faster regexp package (#5315)	4 years ago
parse.go	filters: use faster regexp package (#5315)	4 years ago
perl_groups.go	filters: use faster regexp package (#5315)	4 years ago
prog.go	filters: use faster regexp package (#5315)	4 years ago
regexp.go	filters: use faster regexp package (#5315)	4 years ago
simplify.go	filters: use faster regexp package (#5315)	4 years ago