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Author SHA1 Message Date
Nathan Baulch 50cd453c8f
chore: Fix typos (#14868)
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* Fix typos

---------

Signed-off-by: Nathan Baulch <nathan.baulch@gmail.com>
 2024-09-10 22:32:03 +02:00
Charles Korn e8c7482137
Return negative counts when multiplied or divided by a negative value 
Signed-off-by: Charles Korn <charles.korn@grafana.com>
 2024-09-09 14:37:59 +10:00
György Krajcsovits 505ffd34ef Fix lint error 
Some weird formatting issue in using comment suggestion

Signed-off-by: György Krajcsovits <gyorgy.krajcsovits@grafana.com>
 2024-06-24 09:33:03 +02:00
George Krajcsovits f45709e710
Update model/histogram/histogram_test.go 
Signed-off-by: George Krajcsovits <krajorama@users.noreply.github.com>
 2024-06-24 07:51:56 +02:00
Jeanette Tan 5e4e93c316 fix lint 
Signed-off-by: Jeanette Tan <jeanette.tan@grafana.com>
 2024-06-07 19:24:05 +08:00
Jeanette Tan 14f8dded39 Merge branch 'main' into nhcb 
Signed-off-by: Jeanette Tan <jeanette.tan@grafana.com>
 2024-06-07 19:17:14 +08:00
Jeanette Tan 9adc1699c3 fix according to code review 
Signed-off-by: Jeanette Tan <jeanette.tan@grafana.com>
 2024-06-07 18:50:59 +08:00
Bryan Boreham d635bcaa84
Merge pull request #13587 from tylitianrui/chore/typo_20240215 
chore:fix typo
 2024-06-04 14:43:18 +03:00
Oleksandr Redko f10c3454e9 Enable perfsprint linter and fix up code 
Signed-off-by: Oleksandr Redko <oleksandr.red+github@gmail.com>
 2024-05-15 17:51:05 +03:00
zenador 545a7e48f9
[nhcb branch] Enhance unit test framework for nhcb and warnings (#14009) 
* process custom values in histogram unit test framework
* check for warnings when evaluating in unit test framework
* add test cases for custom buckets in test framework

Signed-off-by: Jeanette Tan <jeanette.tan@grafana.com>
 2024-05-08 13:58:24 +02:00
zenador 81862aabd7
[nhcb branch] Add basic unit tests for native histograms with custom buckets converted from classic histograms (#13794) 
* modify unit test framework to automatically generate native histograms with custom buckets from classic histogram series
* add very basic tests for classic histogram converted into native histogram with custom bounds
* fix histogram_quantile for native histograms with custom buckets
* make loading with nhcb explicit
* evaluate native histograms with custom buckets on queries with explicit keyword
* use regex replacer
* use temp histogram struct for automatically loading converted nhcb

Signed-off-by: Jeanette Tan <jeanette.tan@grafana.com>
Signed-off-by: George Krajcsovits <krajorama@users.noreply.github.com>
 2024-04-24 09:36:05 +02:00
György Krajcsovits a3d1a46eda Merge branch 'main' into nhcb 2024-03-22 14:51:48 +01:00
zenador 4acbb7dea6
Add custom buckets to native histogram chunks encoding (#13706) 
* add custom bounds to chunks encoding
* change custom buckets schema number
* rename custom bounds to custom values

Signed-off-by: Jeanette Tan <jeanette.tan@grafana.com>
 2024-03-22 14:36:39 +01:00
machine424 f477e0539a
Move from golang.org/x/exp/slices into slices now that we only support Go >= 1.21 
Prevent adding back golang.org/x/exp/slices.

Signed-off-by: machine424 <ayoubmrini424@gmail.com>
 2024-02-28 14:54:53 +01:00
György Krajcsovits 5d0a0a7542 Add custom buckets to native histogram model (#13592) 
* add custom buckets to native histogram model
* simple copy for custom bounds
* return errors for unsupported add/sub operations
* add test cases for string and update appendhistogram in scrape to account for new schema
* check fields which are supposed to be unused but may affect results in equals
* allow appending custom buckets histograms regardless of max schema

Signed-off-by: Jeanette Tan <jeanette.tan@grafana.com>
 2024-02-28 14:06:43 +01:00
tyltr 084420b837 chore:fix typo 
Signed-off-by: tyltr <tylitianrui@126.com>
 2024-02-15 20:40:22 +08:00
Filip Petkovski 583f3e587c
Optimize histogram iterators (#13340) 
Optimize histogram iterators

Histogram iterators allocate new objects in the AtHistogram and
AtFloatHistogram methods, which makes calculating rates over long
ranges expensive.

In #13215 we allowed an existing object to be reused
when converting an integer histogram to a float histogram. This commit follows
the same idea and allows injecting an existing object in the AtHistogram and
AtFloatHistogram methods. When the injected value is nil, iterators allocate
new histograms, otherwise they populate and return the injected object.

The commit also adds a CopyTo method to Histogram and FloatHistogram which
is used in the BufferedIterator to overwrite items in the ring instead of making
new copies.

Note that a specialized HPoint pool is needed for all of this to work 
(`matrixSelectorHPool`).

---------

Signed-off-by: Filip Petkovski <filip.petkovsky@gmail.com>
Co-authored-by: George Krajcsovits <krajorama@users.noreply.github.com>
 2024-01-23 17:02:14 +01:00
zenador a3ddfbd1ee
Add warnings for histogramRate applied with isCounter not matching counter/gauge histogram (#13392) 
Add warnings for histogramRate applied with isCounter not matching counter/gauge histogram

---------

Signed-off-by: Jeanette Tan <jeanette.tan@grafana.com>
 2024-01-17 17:06:35 +01:00
tyltr 1fa131ee03
fix slice copy in 1.20 (#13389) 
The slices package is added to the standard library in Go 1.21;
we need to import from the exp area to maintain compatibility with Go 1.20.

Signed-off-by: tyltr <tylitianrui@126.com>
 2024-01-16 11:06:58 +00:00
Björn Rabenstein 928d07e3bd
Merge branch 'main' into arve/typos 
Signed-off-by: Björn Rabenstein <beorn@grafana.com>
 2023-12-12 12:02:03 +01:00
Filip Petkovski 9008271df5
Use cap to determine slice capacity 
Signed-off-by: Filip Petkovski <filip.petkovsky@gmail.com>
 2023-12-08 10:23:01 +01:00
Filip Petkovski 10a82f87fd
Enable reusing memory when converting between histogram types 
The 'ToFloat' method on integer histograms currently allocates new memory
each time it is called.

This commit adds an optional *FloatHistogram parameter that can be used
to reuse span and bucket slices. It is up to the caller to make sure the
input float histogram is not used anymore after the call.

Signed-off-by: Filip Petkovski <filip.petkovsky@gmail.com>
 2023-12-08 10:22:59 +01:00
Björn Rabenstein 85078b968f
Merge pull request #13208 from linasm/panic-free-float-histogram-add-sub 
FloatHistogram.Add/Sub: handle any schema change
 2023-12-07 20:12:21 +01:00
Björn Rabenstein de1ec731c7
Merge pull request #13212 from linasm/optimize-floatBucketIterator-for-common-case 
Histograms: optimize floatBucketIterator for common case
 2023-12-07 20:11:58 +01:00
Linas Medziunas bd895baefc FloatHistogram.Add/Sub: handle any schema change 
Signed-off-by: Linas Medziunas <linas.medziunas@gmail.com>
 2023-12-07 20:50:54 +02:00
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
Arve Knudsen 237bfea46b chunks.Reader: Fix typo in ChunkOrIterable doc string. 
Also fix comment typo in `FloatHistogram.Sub`.

Signed-off-by: Arve Knudsen <arve.knudsen@gmail.com>
 2023-12-07 08:28:45 +01:00
Oleksandr Redko 2a75604f8e
Enable default revive rules (#13068) 
Signed-off-by: Oleksandr Redko <Oleksandr_Redko@epam.com>
 2023-11-29 17:23:34 +00:00
Linas Medziunas 048886ae8a Histograms: optimize floatBucketIterator for common case 
Signed-off-by: Linas Medziunas <linas.medziunas@gmail.com>
 2023-11-29 08:54:05 +02:00
Linas Medziunas 49613823f8 Reuse slices in [Float]Histogram.ReduceResolution 
Signed-off-by: Linas Medziunas <linas.medziunas@gmail.com>
 2023-11-28 15:45:31 +02:00
Björn Rabenstein a6d4b8d97b
Merge pull request #13190 from linasm/fix-float-histogram-add-sub-mutating-argument 
Fix FloatHistogram.Add/Sub mutating its argument
 2023-11-28 14:04:50 +01:00
Linas Medziunas f99ecc376e Fix FloatHistogram.Add/Sub mutating its argument 
Signed-off-by: Linas Medziunas <linas.medziunas@gmail.com>
 2023-11-26 09:26:34 +02:00
Linas Medziunas ea1862aab4 Explicit schema check in [Float]Histogram.ReduceResolution 
Signed-off-by: Linas Medziunas <linas.medziunas@gmail.com>
 2023-11-25 11:38:15 +02:00
Ziqi Zhao e250f09b5d
change origin schema in ReduceResolution method of histogram and float histogram (#13116) 
* change origin schema in ReduceResolution method of histogram and float histogram

Signed-off-by: Ziqi Zhao <zhaoziqi9146@gmail.com>

---------

Signed-off-by: Ziqi Zhao <zhaoziqi9146@gmail.com>
 2023-11-10 14:33:34 +01:00
Ziqi Zhao ab2a7bb74f
add generic shrink function (#13001) 
Add `ReduceResolution` method to `Histogram` and `FloatHistogram`

This takes the original `mergeToSchema` function and turns it into a more generic `reduceResolution` function, which is the building block for the new methods.

The methods will help with addressing #12864.

---------

Signed-off-by: Ziqi Zhao <zhaoziqi9146@gmail.com>
 2023-11-08 14:43:05 +01:00
Matthieu MOREL 05fba53e57 web : use Go standard package 
Signed-off-by: Matthieu MOREL <matthieu.morel35@gmail.com>
 2023-11-08 06:37:59 +00:00
Linas Medziunas ebed7d0612 Change Validate to be a method on histogram structs 
Signed-off-by: Linas Medziunas <linas.medziunas@gmail.com>
 2023-11-03 16:47:59 +02:00
Linas Medziunas 1f8aea11d6 Move histogram validation code to model/histogram 
Signed-off-by: Linas Medziunas <linas.medziunas@gmail.com>
 2023-11-03 16:17:24 +02:00
Björn Rabenstein fae4561369
Merge pull request #12954 from linasm/linasm/optimize-floatBucketIterator2 
Histogram performance: optimize floatBucketIterator
 2023-11-02 23:59:32 +01:00
Oleksandr Redko fa90ca46e5 ci(lint): enable godot; append dot at the end of comments 
Signed-off-by: Oleksandr Redko <Oleksandr_Redko@epam.com>
 2023-10-31 19:53:38 +02:00
Linas Medžiūnas e3e22abadb
Merge branch 'main' into linasm/optimize-floatBucketIterator2 
Signed-off-by: Linas Medžiūnas <linasm@users.noreply.github.com>
 2023-10-24 16:27:10 +03:00
Marc Tuduri 1ce066e51c
More periods 
Signed-off-by: Marc Tuduri <marctc@protonmail.com>
 2023-10-18 11:53:50 +02:00
Marc Tuduri af7c31ee10
PR feedback 
Signed-off-by: Marc Tuduri <marctc@protonmail.com>
 2023-10-18 11:53:50 +02:00
Marc Tuduri 8fededf6ad
promql(histograms): Change sample total calculation for histograms 
Signed-off-by: Marc Tuduri <marctc@protonmail.com>
 2023-10-18 11:51:11 +02:00
Linas Medziunas 62bbb81e29 Mention bucket values in the comment 
Signed-off-by: Linas Medziunas <linas.medziunas@gmail.com>
 2023-10-14 21:30:40 +03:00
Linas Medziunas ec823d9daf Update comments, bitwise comparison of float buckets 
Signed-off-by: Linas Medziunas <linas.medziunas@gmail.com>
 2023-10-09 16:09:46 +03:00
Linas Medziunas c5c5c569fa Histogram performance: optimize floatBucketIterator 
Signed-off-by: Linas Medziunas <linas.medziunas@gmail.com>
 2023-10-09 09:40:59 +03:00
Linas Medziunas 3c047a3518 Expand docs comments 
Signed-off-by: Linas Medziunas <linas.medziunas@gmail.com>
 2023-09-28 09:08:09 +03:00
Linas Medziunas dfb6292600 Compare FloatHistogram.[Zero]Count float values as binary 
Signed-off-by: Linas Medziunas <linas.medziunas@gmail.com>
 2023-09-28 09:06:54 +03:00
Linas Medziunas cbd01fc296 Fix NaN sum check in [Float]Histogram.Equals method 
Signed-off-by: Linas Medziunas <linas.medziunas@gmail.com>
 2023-09-25 16:03:55 +03:00