It slows down compilation and doesn't make any of our benchmarks go faster.
Assumed to be something that helped at an earlier point, but doesn't help now.
Add a benchmark with a more complicated regex to demonstrate the slowdown.
Signed-off-by: Bryan Boreham <bjboreham@gmail.com>
Up to 32-byte values this saves garbage, runs faster.
For prefixes, only `toLower` the part we need for the map lookup.
Split toNormalisedLower into fast and slow paths, to avoid a penalty
for the `copy` call in the case where no allocations are done.
Signed-off-by: Bryan Boreham <bjboreham@gmail.com>
Shortcut for `.*` matches newlines as well.
Add preamble change ^(?s:
Add test
dotAll flag por al regex
Add and fix regex tests
Signed-off-by: Mario Fernandez <mariofer@redhat.com>
For example `foo.*|bar.*|baz.*`. Instead of checking each one in turn,
we build a map of prefixes, then check the smaller set that could match
the string supplied.
Signed-off-by: Bryan Boreham <bjboreham@gmail.com>
* Improve testing and readability
Address review comments on #13843
Signed-off-by: Marco Pracucci <marco@pracucci.com>
* Converted string to standarized form
* Added golang.org/x/text in Go dependencies
* Added test cases for FastRegexMatcher
* Added benchmark for toNormalizedLower
Signed-off-by: RA <ranveeravhad777@gmail.com>
This replaces the custom `moreThanOneRune` function with the standard
`utf8.DecodeRuneInString(s)` that can be used to figure out the size of
the first rune.
Signed-off-by: Oleg Zaytsev <mail@olegzaytsev.com>
When `zeroOrOneCharacterStringMatcher` wach checking the input string,
it assumed that if there are more than one bytes, then there are more
than one runes, but that's not necessarily true.
Signed-off-by: Oleg Zaytsev <mail@olegzaytsev.com>
labels: dont compile regex matcher if we know its a literal
Signed-off-by: Michael Hoffmann <mhoffm@posteo.de>
Co-authored-by: Sharad <sharadgaur@gmail.com>
This creates a new `model` directory and moves all data-model related
packages over there:
exemplar labels relabel rulefmt textparse timestamp value
All the others are more or less utilities and have been moved to `util`:
gate logging modetimevfs pool runtime
Signed-off-by: beorn7 <beorn@grafana.com>
