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Author SHA1 Message Date
Oleg Zaytsev 4d654ee22b
Benchmark Labels.Get() and document the result (#9242) 
While implementing a different feature, I found that Labels.Get() was
performing a linear search. I wondered whether it would perform any
better with a binary search approach, and wrote a benchmark: the answer
is that it's probably doesn't worth it, so I just decided to leave the
benchmark and the results for the next reader.

Signed-off-by: Oleg Zaytsev <mail@olegzaytsev.com>
 2021-08-24 16:35:19 +05:30
Ben Kochie a06dcd7771
Update Makefile.common 
* Bump promu to latest release.
* Bump golangci-lint to latest release.
* Add nolint to intentional error.

Signed-off-by: Ben Kochie <superq@gmail.com>
 2021-04-13 09:33:45 +02:00
Julien Pivotto 6c56a1faaa
Testify: move to require (#8122) 
* Testify: move to require

Moving testify to require to fail tests early in case of errors.

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

* More moves

Signed-off-by: Julien Pivotto <roidelapluie@inuits.eu>
 2020-10-29 09:43:23 +00:00
Julien Pivotto 1282d1b39c
Refactor test assertions (#8110) 
* Refactor test assertions

This pull request gets rid of assert.True where possible to use
fine-grained assertions.

Signed-off-by: Julien Pivotto <roidelapluie@inuits.eu>
 2020-10-27 11:06:53 +01:00
Julien Pivotto 4e5b1722b3
Move away from testutil, refactor imports (#8087) 
Signed-off-by: Julien Pivotto <roidelapluie@inuits.eu>
 2020-10-22 11:00:08 +02:00
Bartlomiej Plotka 9981b3f3ee
labels: Reduce allocated memory and latency of Hash method; Added tests. (#8025) 
* labels: Reduce allocated memory by Hash method in edge cases; Added tests.

Old:
/tmp/___BenchmarkLabels_Hash_in_github_com_prometheus_prometheus_pkg_labels -test.v -test.bench ^\QBenchmarkLabels_Hash\E$ -test.run ^$
goos: linux
goarch: amd64
pkg: github.com/prometheus/prometheus/pkg/labels
BenchmarkLabels_Hash
BenchmarkLabels_Hash/typical_labels_under_1KB
BenchmarkLabels_Hash/typical_labels_under_1KB-12         	 5366161	       259 ns/op	       0 B/op	       0 allocs/op
BenchmarkLabels_Hash/bigger_labels_over_1KB
BenchmarkLabels_Hash/bigger_labels_over_1KB-12           	 1700371	       767 ns/op	    2048 B/op	       1 allocs/op
BenchmarkLabels_Hash/extremely_large_label_value_10MB
BenchmarkLabels_Hash/extremely_large_label_value_10MB-12 	     356	   3743115 ns/op	10523442 B/op	       1 allocs/op
PASS

New:
/tmp/___BenchmarkLabels_Hash_in_github_com_prometheus_prometheus_pkg_labels -test.v -test.bench ^\QBenchmarkLabels_Hash\E$ -test.run ^$
goos: linux
goarch: amd64
pkg: github.com/prometheus/prometheus/pkg/labels
BenchmarkLabels_Hash
BenchmarkLabels_Hash/typical_labels_under_1KB
BenchmarkLabels_Hash/typical_labels_under_1KB-12         	 4758883	       259 ns/op	       0 B/op	       0 allocs/op
BenchmarkLabels_Hash/bigger_labels_over_1KB
BenchmarkLabels_Hash/bigger_labels_over_1KB-12           	 3324492	       357 ns/op	      80 B/op	       1 allocs/op
BenchmarkLabels_Hash/extremely_large_label_value_10MB
BenchmarkLabels_Hash/extremely_large_label_value_10MB-12 	    1087	   1083949 ns/op	    9734 B/op	       1 allocs/op
PASS

Process finished with exit code 0

Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>

* Addressed Kemal's comment.

Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>

* Moved to v2 xxhash for improvements.

New:

/tmp/___BenchmarkLabels_Hash_in_github_com_prometheus_prometheus_pkg_labels -test.v -test.bench ^\QBenchmarkLabels_Hash\E$ -test.run ^$ -test.benchtime 10s
goos: linux
goarch: amd64
pkg: github.com/prometheus/prometheus/pkg/labels
BenchmarkLabels_Hash
BenchmarkLabels_Hash/typical_labels_under_1KB
BenchmarkLabels_Hash/typical_labels_under_1KB-12         	53447894	       221 ns/op	       0 B/op	       0 allocs/op
BenchmarkLabels_Hash/bigger_labels_over_1KB
BenchmarkLabels_Hash/bigger_labels_over_1KB-12           	42341754	       326 ns/op	       0 B/op	       0 allocs/op
BenchmarkLabels_Hash/extremely_large_label_value_10MB
BenchmarkLabels_Hash/extremely_large_label_value_10MB-12 	   10000	   1248546 ns/op	       0 B/op	       0 allocs/op
PASS

Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>

* Removed old xxhash package.

Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>

* Pined minor version.

Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>
 2020-10-15 11:31:28 +01:00
Bartlomiej Plotka dee6ac274e
labels: Extra tests and comment for WithoutLabels method. (#8024) 
Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>
 2020-10-13 08:57:53 +01:00
Chris Marchbanks ec45e3d029
Remove duplicate test in labels_test.go (#7461) 
Signed-off-by: Chris Marchbanks <csmarchbanks@gmail.com>
 2020-06-25 12:42:04 -06:00
Guangwen Feng b41adab735
Add unit test case for func FromStrings in labels.go (#7321) 
Signed-off-by: Guangwen Feng <fenggw-fnst@cn.fujitsu.com>
 2020-06-24 11:54:30 +01:00
Hu Shuai e5ffa8c9a0
Add some unit tests for pkg/labels/labels.go (#7358) 
This PR is about adding some unit tests for pkg/labels/labels.go.

Signed-off-by: Hu Shuai <hus.fnst@cn.fujitsu.com>
 2020-06-08 08:46:21 +01:00
Hu Shuai 6ff4814a49
Add some unit tests for pkg/labels/labels.go (#7347) 
This PR is about adding some unit tests for pkg/labels/labels.go.

Signed-off-by: Hu Shuai <hus.fnst@cn.fujitsu.com>
 2020-06-05 09:48:33 +01:00
Hu Shuai da217cbde2
Add some unit tests for funcs in pkg/labels/labels.go (#7116) 
This PR is about adding some unit tests for funcs in pkg/labels/labels.go.

Signed-off-by: Hu Shuai <hus.fnst@cn.fujitsu.com>
 2020-05-12 10:42:21 +01:00
ZouYu 06493b7034
add unit test TestLabels_String for pkg/labels/labels.go (#7150) 
Signed-off-by: ZouYu <zouy.fnst@cn.fujitsu.com>
 2020-04-22 12:32:47 +05:30
Hu Shuai 002b391dfc
Add unit test for Has in pkg/labels/labels.go (#7039) 
This PR is about adding a unit test for Has in pkg/labels/labels.go.

Signed-off-by: Hu Shuai <hus.fnst@cn.fujitsu.com>
 2020-04-09 08:49:09 -07:00
Guangwen Feng a128fc3534
Add unit tests in labels.go (#6921) 
* Add unit test for func Equal in labels.go
* Add unit test for func Compare in labels.go

Signed-off-by: Guangwen Feng <fenggw-fnst@cn.fujitsu.com>
 2020-03-03 14:17:54 +00:00
Guangwen Feng 87971fff90
Add unit test for func WithoutEmpty in labels.go (#6848) 
Signed-off-by: Guangwen Feng <fenggw-fnst@cn.fujitsu.com>
 2020-02-19 11:56:12 +00:00
Julien Pivotto 46d18112a3 tsdb: error on series with duplicate labels (#6664) 
Signed-off-by: Julien Pivotto <roidelapluie@inuits.eu>
 2020-01-20 11:05:27 +00:00
Julius Volz ae93bae88f Fix: exclude metric name in labels.MatchLabels() (#6523) 
This function is only used in one place to format an error message when
encountering multiple matches on the "one" side of a
one-to-many/many-to-one vector match, which is probably why nobodoy has
noticed this before. The hashing is already done correctly and excludes
the metric name label when using the "ignoring" matching modifier.

Signed-off-by: Julius Volz <julius.volz@gmail.com>
 2019-12-27 09:32:19 +00:00
Tariq Ibrahim a2a6e24f9f show list of offending labels in the error message in many-to-many scenarios (#5189) 
Signed-off-by: tariqibrahim <tariq181290@gmail.com>
 2019-02-09 10:17:52 +01:00