Commit graph

18 commits

Author SHA1 Message Date
Bryan Boreham ba6aa95222 refactor: metrics parsing: extract common checking code
Signed-off-by: Bryan Boreham <bjboreham@gmail.com>
2024-02-26 16:37:41 +00:00
Bryan Boreham eff3a13e19 model/textparse: parsers take a labels SymbolTable
This allows strings to be interned to save memory.

Signed-off-by: Bryan Boreham <bjboreham@gmail.com>
2024-02-26 11:45:25 +00:00
Bryan Boreham 93b72ec5dd tsdb: create SymbolTables for labels as required
Signed-off-by: Bryan Boreham <bjboreham@gmail.com>
2024-02-26 11:45:25 +00:00
Łukasz Mierzwa 5597020a60 Use github.com/klauspost/compress for gzip and zlib
klauspost/compress is a high quality drop-in replacement for common Go
compression libraries. Since Prometheus sends out a lot of HTTP requests
that often return compressed output having improved compression
libraries helps to save cpu & memory resources.
On a test Prometheus server I was able to see cpu reduction from 31 to
30 cores.

Benchmark results:

name                                old time/op    new time/op    delta
TargetScraperGzip/metrics=1-8         69.4µs ± 4%    69.2µs ± 3%     ~     (p=0.122 n=50+50)
TargetScraperGzip/metrics=100-8       84.3µs ± 2%    80.9µs ± 2%   -4.02%  (p=0.000 n=48+46)
TargetScraperGzip/metrics=1000-8       296µs ± 1%     274µs ±14%   -7.35%  (p=0.000 n=47+45)
TargetScraperGzip/metrics=10000-8     2.06ms ± 1%    1.66ms ± 2%  -19.34%  (p=0.000 n=47+45)
TargetScraperGzip/metrics=100000-8    20.9ms ± 2%    17.5ms ± 3%  -16.50%  (p=0.000 n=49+50)

name                                old alloc/op   new alloc/op   delta
TargetScraperGzip/metrics=1-8         6.06kB ± 0%    6.07kB ± 0%   +0.24%  (p=0.000 n=48+48)
TargetScraperGzip/metrics=100-8       7.04kB ± 0%    6.89kB ± 0%   -2.17%  (p=0.000 n=49+50)
TargetScraperGzip/metrics=1000-8      9.02kB ± 0%    8.35kB ± 1%   -7.49%  (p=0.000 n=50+50)
TargetScraperGzip/metrics=10000-8     18.1kB ± 1%    16.1kB ± 2%  -10.87%  (p=0.000 n=47+47)
TargetScraperGzip/metrics=100000-8    1.21MB ± 0%    1.01MB ± 2%  -16.69%  (p=0.000 n=36+50)

name                                old allocs/op  new allocs/op  delta
TargetScraperGzip/metrics=1-8           71.0 ± 0%      72.0 ± 0%   +1.41%  (p=0.000 n=50+50)
TargetScraperGzip/metrics=100-8         81.0 ± 0%      76.0 ± 0%   -6.17%  (p=0.000 n=50+50)
TargetScraperGzip/metrics=1000-8        92.0 ± 0%      83.0 ± 0%   -9.78%  (p=0.000 n=50+50)
TargetScraperGzip/metrics=10000-8       93.0 ± 0%      91.0 ± 0%   -2.15%  (p=0.000 n=50+50)
TargetScraperGzip/metrics=100000-8       111 ± 0%       135 ± 1%  +21.89%  (p=0.000 n=40+50)

Signed-off-by: Łukasz Mierzwa <l.mierzwa@gmail.com>
2024-02-22 17:08:15 +00:00
Owen Williams a28d7865ad UTF-8: Add support for parsing UTF8 metric and label names
This adds support for the new grammar of `{"metric_name", "l1"="val"}` to promql and some of the exposition formats.
This grammar will also be valid for non-UTF-8 names.
UTF-8 names will not be considered valid unless model.NameValidationScheme is changed.

This does not update the go expfmt parser in text_parse.go, which will be addressed by https://github.com/prometheus/common/issues/554/.

Part of https://github.com/prometheus/prometheus/issues/13095

Signed-off-by: Owen Williams <owen.williams@grafana.com>
2024-02-15 14:34:37 -05:00
Bryan Boreham 17f48f2b3b Tests: use replacement DeepEquals in more places
Signed-off-by: Bryan Boreham <bjboreham@gmail.com>
2024-02-08 19:32:33 +00:00
Bryan Boreham 8065bef172 Move metric type definitions to common/model
They are used in multiple repos, so common is a better place for them.
Several packages now don't depend on `model/textparse`, e.g.
`storage/remote`.

Also remove `metadata` struct from `api.go`, since it was identical to
a struct in the `metadata` package.

Signed-off-by: Bryan Boreham <bjboreham@gmail.com>
2023-12-19 18:56:54 +00:00
Matthieu MOREL 9c4782f1cc
golangci-lint: enable testifylint linter (#13254)
Signed-off-by: Matthieu MOREL <matthieu.morel35@gmail.com>
2023-12-07 11:35:01 +00:00
Matthieu MOREL fb3eb21230 enable gocritic, unconvert and unused linters
Signed-off-by: Matthieu MOREL <matthieu.morel35@gmail.com>
2023-04-13 19:20:22 +00:00
Damien Grisonnet e3b5416d05 model/textparse: improve error outputs
Parsing errors in the Prometheus HTTP format parser are very hard to
investigate since they only approximately indicate what is going wrong
in the parser and don't provide any information about the incorrect
input. As such it is very hard to tell what is wrong in the format
exposed by the application.

Signed-off-by: Damien Grisonnet <dgrisonn@redhat.com>
2023-02-03 16:54:57 +01:00
Damien Grisonnet 96b9d8cebb model/textparse: associate correct token to errors
In some cases, the Prometheus HTTP format parser was not returning the
right token in the error output which made debugging impossible.

Signed-off-by: Damien Grisonnet <dgrisonn@redhat.com>
2023-01-02 13:57:27 +01:00
Bryan Boreham 8d350d9e0c Update package model/textparse tests for new labels.Labels type
We don't want to touch the result labels now we create them differently.

Signed-off-by: Bryan Boreham <bjboreham@gmail.com>
2022-12-19 15:22:09 +00:00
Bryan Boreham 8120af22e2 benchmarks: SetBytes takes bytes per operation
Where the code was multiplying bytes by number of operations, this
resulted in absurdly high throughput numbers.

Also, in `BenchmarkParse()`, don't run the `expfmt` case twice.

Signed-off-by: Bryan Boreham <bjboreham@gmail.com>
2022-10-02 22:11:33 +02:00
Julien Pivotto 96d5a32659
Update go to 1.19, set min version to 1.18 (#11279)
* Update go to 1.19, set min version to 1.18

Signed-off-by: Julien Pivotto <roidelapluie@o11y.eu>

* Update golangci-lint

Signed-off-by: Julien Pivotto <roidelapluie@o11y.eu>

Signed-off-by: Julien Pivotto <roidelapluie@o11y.eu>
2022-09-07 11:30:48 +02:00
Matthieu MOREL c2b4de3611
refactor (package model): move from github.com/pkg/errors to 'errors' and 'fmt' packages (#10747)
Signed-off-by: Matthieu MOREL <mmorel-35@users.noreply.github.com>
Co-Authored-By: Julien Pivotto <roidelapluie@gmail.com>

Co-authored-by: Julien Pivotto <roidelapluie@gmail.com>
2022-06-27 21:29:19 +02:00
Matthieu MOREL e2ede285a2
refactor: move from io/ioutil to io and os packages (#10528)
* refactor: move from io/ioutil to io and os packages
* use fs.DirEntry instead of os.FileInfo after os.ReadDir

Signed-off-by: MOREL Matthieu <matthieu.morel@cnp.fr>
2022-04-27 11:24:36 +02:00
Levi Harrison a9e2ffb717
Specify type in metadata parser errors (#10269) 2022-03-08 08:04:11 -05:00
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>
2021-11-09 08:03:10 +01:00
Renamed from pkg/textparse/promparse_test.go (Browse further)