prometheus

Commit Graph

Author	SHA1	Message	Date
Oleg Zaytsev	03cf6141d4	Fix Matcher.String() with empty label name When the label name is empty, which can happen now with quoted label name, it should be quoted when printed as a string again. Signed-off-by: Oleg Zaytsev <mail@olegzaytsev.com>	5 months ago
Oleg Zaytsev	b7b4355807	Use bytes.Buffer from stack buf in Matcher.String() Also removed the growing until there's a benchmark for that. Signed-off-by: Oleg Zaytsev <mail@olegzaytsev.com>	7 months ago
Oleg Zaytsev	6ebda5a7bc	Optimize Matcher.String() Signed-off-by: Oleg Zaytsev <mail@olegzaytsev.com>	7 months ago
Oleg Zaytsev	dabd789fd5	Quote label name in matchers when needed When the label name of a matcher contains non-standard characters, like a dot, or starts with a digit, it should be quoted. If it's not quoted, then `VectorSelector.String()` isn't a valid PromQL. Signed-off-by: Oleg Zaytsev <mail@olegzaytsev.com>	7 months ago
Marco Pracucci	bfec57bd2e	Further optimise FastRegexMatcher Signed-off-by: Marco Pracucci <marco@pracucci.com>	10 months ago
beorn7	c954cd9d1d	Move packages out of deprecated pkg directory 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>	3 years ago
Oleg Zaytsev	280eaf33f0	Use global string map for MatchType.String() (#9237 ) * Use global string map for MatchType.String() We were unnecessarily creating a new map for each call of String(). This is a 10x improvement in MatchType.String() performance in time, from 53ns to 4ns on my i7 laptop, and I guess that this method is being called quite often so why throw out the resources. I was surprised that benchmark says that there are no allocations made in the old version. I also tries using `//go:generate stringer` and the result is even better, at about 2.8ns, but having to keep the generated code updated isn't worth the change (at least it's bigger than a small change I was intended to do) Benchmark comparison: name \ time/op old global_map stringer MatchType_String 53.6ns ± 1% 4.1ns ± 1% 2.8ns ± 1% name \ alloc/op old global_map stringer MatchType_String 0.00B 0.00B 0.00B name \ allocs/op old global_map stringer MatchType_String 0.00 0.00 0.00 Old benchmark: goos: darwin goarch: amd64 pkg: github.com/prometheus/prometheus/pkg/labels cpu: Intel(R) Core(TM) i7-9750H CPU @ 2.60GHz BenchmarkMatchType_String 21766578 54.36 ns/op 0 B/op 0 allocs/op BenchmarkMatchType_String 21742339 53.28 ns/op 0 B/op 0 allocs/op BenchmarkMatchType_String 21985470 53.37 ns/op 0 B/op 0 allocs/op BenchmarkMatchType_String 21676282 53.50 ns/op 0 B/op 0 allocs/op BenchmarkMatchType_String 22075573 53.33 ns/op 0 B/op 0 allocs/op PASS ok github.com/prometheus/prometheus/pkg/labels 6.252s New with global map: goos: darwin goarch: amd64 pkg: github.com/prometheus/prometheus/pkg/labels cpu: Intel(R) Core(TM) i7-9750H CPU @ 2.60GHz BenchmarkMatchType_String 283412692 4.129 ns/op 0 B/op 0 allocs/op BenchmarkMatchType_String 294859941 4.091 ns/op 0 B/op 0 allocs/op BenchmarkMatchType_String 295750158 4.113 ns/op 0 B/op 0 allocs/op BenchmarkMatchType_String 282827982 4.072 ns/op 0 B/op 0 allocs/op BenchmarkMatchType_String 292942393 4.047 ns/op 0 B/op 0 allocs/op PASS ok github.com/prometheus/prometheus/pkg/labels 8.238s Signed-off-by: Oleg Zaytsev <mail@olegzaytsev.com> * Use array instead of map Since MatchType is an iota type, we can safely use an array here. This solution is even better: name \ time/op old global_map stringer array MatchType_String 53.6ns ± 1% 4.1ns ± 1% 2.8ns ± 1% 1.0ns ± 1% name \ alloc/op old global_map stringer array MatchType_String 0.00B 0.00B 0.00B 0.00B name \ allocs/op old global_map stringer array MatchType_String 0.00 0.00 0.00 0.00 Signed-off-by: Oleg Zaytsev <mail@olegzaytsev.com> * Benchmark all MatchType values Co-authored-by: Ganesh Vernekar <15064823+codesome@users.noreply.github.com> Signed-off-by: Oleg Zaytsev <mail@olegzaytsev.com> * Use constants for limits Signed-off-by: Oleg Zaytsev <mail@olegzaytsev.com> Co-authored-by: Ganesh Vernekar <15064823+codesome@users.noreply.github.com> Co-authored-by: Ganesh Vernekar <15064823+codesome@users.noreply.github.com>	3 years ago
Marco Pracucci	cef4dd6fff	Optimized label regex matcher with literal prefix and/or suffix (#7453 ) * Optimized label regex matcher with literal prefix and/or suffix Signed-off-by: Marco Pracucci <marco@pracucci.com> * Added license Signed-off-by: Marco Pracucci <marco@pracucci.com> * Added more tests cases with newlines Signed-off-by: Marco Pracucci <marco@pracucci.com> * Restored deleted test Signed-off-by: Marco Pracucci <marco@pracucci.com>	4 years ago
Ben Ye	492414542e	fix matcher for regex (#6540 ) Signed-off-by: yeya24 <yb532204897@gmail.com>	5 years ago
Tom Wilkie	de0a772b8e	Port tsdb to use pkg/labels. (#6326 ) * Port tsdb to use pkg/labels. Signed-off-by: Tom Wilkie <tom.wilkie@gmail.com> * Get tests passing. Signed-off-by: Tom Wilkie <tom.wilkie@gmail.com> * Remove useless cast. Signed-off-by: Tom Wilkie <tom.wilkie@gmail.com> * Appease linters. Signed-off-by: Tom Wilkie <tom.wilkie@gmail.com> * Fix review comments Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in>	5 years ago
Julius Volz	33c1171b9c	Don't add anchoring to exported `Value` matcher field Instead, just make the anchoring part of the internal regex. This helps because some users will want to read back the `Value` field and expect it to be the same as the input value (e.g. some tests in Cortex), or use the value in another context which is already expected to add its own anchoring, leading to superfluous double anchoring (such as when we translate matchers into remote read request matchers).	7 years ago
Brian Brazil	5c9a6ce747	Add license to files. This should fix CI for dev-2.0.	8 years ago
Fabian Reinartz	fecf9532b9	*: fix misc compile errors	8 years ago
Fabian Reinartz	0492ddbd4d	*: fully decouple tsdb, add new storage interfaces	8 years ago

6 Commits (1cd2d0498b287a5698e3eda8fa7979643b752265)