prometheus

Commit Graph

Author	SHA1	Message	Date
Bryan Boreham	2e2c014d52	Labels: optimise creation of signature with/without labels (#10667 ) * Labels: create signature with/without labels Instead of creating a new Labels slice then converting to signature, go directly to the signature and save time. Signed-off-by: Bryan Boreham <bjboreham@gmail.com> * Labels: refactor Builder tests Have one test with a range of cases, and have them check the final output rather than checking the internal structure of the Builder. Also add a couple of cases where the value is "", which should be interpreted as 'delete'. Signed-off-by: Bryan Boreham <bjboreham@gmail.com> * Labels: add 'Keep' function to Builder This lets us replace `Labels.WithLabels` with the more general `Builder`. In `engine.resultMetric()` we can call `Keep()` instead of checking and calling `Del()`. Avoid calling `Sort()` in `Builder.Labels()` if we didn't add anything, so that `Keep()` has the same performance as `WithLabels()`. Signed-off-by: Bryan Boreham <bjboreham@gmail.com>	3 years ago
Łukasz Mierzwa	b11062bfcc	Don't count added labels when initializing slice (#10756 ) This was added in #10749 but based on feedback it might be over-allocating so worth removing. Signed-off-by: Łukasz Mierzwa <l.mierzwa@gmail.com>	3 years ago
Łukasz Mierzwa	08262454a3	Preallocate Labels in labels.Builder (#10749 ) This tries to avoid re-allocations of labels slice since we know possible max size Signed-off-by: Łukasz Mierzwa <l.mierzwa@gmail.com>	3 years ago
Łukasz Mierzwa	89de30a0b7	Avoid reallocating map in MatchLabels (#10715 ) We know the max size of our map so we can create it with that information and avoid extra allocations Signed-off-by: Łukasz Mierzwa <l.mierzwa@gmail.com>	3 years ago
Nick Pillitteri	53ac9d6d66	Compare equality of label.Label structs directly (#10427 ) * labels.Equal benchmark for equal, not equal, and differing lengths Signed-off-by: Nick Pillitteri <nick.pillitteri@grafana.com> * Compare equality of label.Label structs directly Compare the structs using `==` instead of the name and value of each label. This is functionally equivalent and about ~10% faster in my testing. Signed-off-by: Nick Pillitteri <nick.pillitteri@grafana.com> * Use longer more realistic names and values in benchmark Signed-off-by: Nick Pillitteri <nick.pillitteri@grafana.com>	3 years ago
Łukasz Mierzwa	da23c4649a	Enable misspell check in golangci-lint (#10393 ) Signed-off-by: Łukasz Mierzwa <l.mierzwa@gmail.com>	3 years ago
Bryan Boreham	579331446a	Allow downstream projects to use faster regexp (#10251 ) * Add benchmark for FastRegexMatcher Signed-off-by: Bryan Boreham <bjboreham@gmail.com> * Use modified regexp 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) Signed-off-by: Bryan Boreham <bjboreham@gmail.com> * Use regexp code identical to upstream Go Change `grafana/regexp` import to use `main` branch. This means Prometheus is not using the proposed optimisations, but downstream users of Prometheus code are able to `replace` the library with the `speedup` branch which does. Signed-off-by: Bryan Boreham <bjboreham@gmail.com>	3 years 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

8 Commits (40ad5e284a6e0e553370c8924a349e76fe000825)