strings.Compare isn't meant to be used, and this way we save one
comparison which is thus very slightly cheaper.
benchmark old ns/op new ns/op delta
BenchmarkPostingsForMatchers/Head/n="1"-4 236305440 233515705 -1.18%
Signed-off-by: Brian Brazil <brian.brazil@robustperception.io>
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>
Use Utsname from golang.org/x/sys/unix which contains byte array
instead of int8/uint8 array members. This allows to simplify the string
conversions of these members.
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Fixes https://github.com/prometheus/common/issues/36
Move logic handling this into the labels package,
so all the cases are handled in one place and we're
less likely to have this come up again.
Signed-off-by: Brian Brazil <brian.brazil@robustperception.io>
For my benchmarks on aggregation this reduces allocations by ~5% (~10%
time improvement):
```
benchmark old ns/op new ns/op delta
BenchmarkEvaluations/benchdata/aggregators.test/promxy-4 727692 649626 -10.73%
benchmark old allocs new allocs delta
BenchmarkEvaluations/benchdata/aggregators.test/promxy-4 2566 2434 -5.14%
benchmark old bytes new bytes delta
BenchmarkEvaluations/benchdata/aggregators.test/promxy-4 162760 148854 -8.54%
```
Signed-off-by: Thomas Jackson <jacksontj.89@gmail.com>
i) Uses the more idiomatic Wrap and Wrapf methods for creating nested errors.
ii) Fixes some incorrect usages of fmt.Errorf where the error messages don't have any formatting directives.
iii) Does away with the use of fmt package for errors in favour of pkg/errors
Signed-off-by: tariqibrahim <tariq181290@gmail.com>
- Unmarshall external_labels config as labels.Labels, add tests.
- Convert some more uses of model.LabelSet to labels.Labels.
- Remove old relabel pkg (fixes#3647).
- Validate external label names.
Signed-off-by: Tom Wilkie <tom.wilkie@gmail.com>
* promparse: sort all labels when parsing
Some label names might start with an uppercase letter in which case it
needs to come before __name__. Without this it means that we are not
maintaining the same invariant that all label names should be sorted in
such cases.
Amend the tests to check this problem automatically. Without the change
the tests do not pass.
Signed-off-by: Giedrius Statkevičius <giedriuswork@gmail.com>
See,
$ codespell -S './vendor/*,./.git*,./web/ui/static/vendor*' --ignore-words-list="uint,dur,ue,iff,te,wan"
Signed-off-by: Mario Trangoni <mjtrangoni@gmail.com>
- Add a dropped samples EWMA and use it in calculating desired shards.
- Update metric names and a log messages.
- Limit number of entries in the dedupe logging middleware to prevent potential OOM.
Signed-off-by: Callum Styan <callumstyan@gmail.com>
Signed-off-by: Tom Wilkie <tom.wilkie@gmail.com>
This is based on the existing parser, and has slightly better
performance (few %) than it.
Signed-off-by: Brian Brazil <brian.brazil@robustperception.io>
Pass content type down to text parser.
Add layer of indirection in front of text parser,
and rename to avoid future clashes.
Signed-off-by: Brian Brazil <brian.brazil@robustperception.io>
To make local debuging with `go run` easyer moved all files into a
dedicate package `runtime`.
This allows running prometheus just by using `go run main.go` instead of
passing mani files like `go run main.go limits_default.go ...`
Signed-off-by: Krasi Georgiev <kgeorgie@redhat.com>
Extends the parser to allow retrieving metadata.
The lexer now yields proper tokens that are fed into a hand-written
parser on top.
Signed-off-by: Fabian Reinartz <freinartz@google.com>
Josh Soref