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https://github.com/prometheus/prometheus
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7ccd4b39b8
This adds a parameter to the storage selection interface which allows query engine(s) to pass information about the operations surrounding a data selection. This can for example be used by remote storage backends to infer the correct downsampling aggregates that need to be provided.
120 lines
2.8 KiB
Go
120 lines
2.8 KiB
Go
// Copyright 2015 The Prometheus Authors
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package promql
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import (
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"context"
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"testing"
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"time"
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"github.com/prometheus/prometheus/pkg/labels"
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"github.com/prometheus/prometheus/pkg/timestamp"
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"github.com/prometheus/prometheus/util/testutil"
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)
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func BenchmarkHoltWinters4Week5Min(b *testing.B) {
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input := `
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clear
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load 5m
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http_requests{path="/foo"} 0+10x8064
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eval instant at 4w holt_winters(http_requests[4w], 0.3, 0.3)
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{path="/foo"} 80640
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`
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bench := NewBenchmark(b, input)
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bench.Run()
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}
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func BenchmarkHoltWinters1Week5Min(b *testing.B) {
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input := `
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clear
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load 5m
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http_requests{path="/foo"} 0+10x2016
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eval instant at 1w holt_winters(http_requests[1w], 0.3, 0.3)
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{path="/foo"} 20160
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`
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bench := NewBenchmark(b, input)
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bench.Run()
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}
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func BenchmarkHoltWinters1Day1Min(b *testing.B) {
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input := `
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clear
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load 1m
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http_requests{path="/foo"} 0+10x1440
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eval instant at 1d holt_winters(http_requests[1d], 0.3, 0.3)
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{path="/foo"} 14400
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`
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bench := NewBenchmark(b, input)
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bench.Run()
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}
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func BenchmarkChanges1Day1Min(b *testing.B) {
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input := `
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clear
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load 1m
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http_requests{path="/foo"} 0+10x1440
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eval instant at 1d changes(http_requests[1d])
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{path="/foo"} 1440
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`
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bench := NewBenchmark(b, input)
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bench.Run()
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}
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func TestDeriv(t *testing.T) {
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// https://github.com/prometheus/prometheus/issues/2674#issuecomment-315439393
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// This requires more precision than the usual test system offers,
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// so we test it by hand.
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storage := testutil.NewStorage(t)
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defer storage.Close()
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engine := NewEngine(nil, nil, 10, 10*time.Second)
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a, err := storage.Appender()
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if err != nil {
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t.Fatal(err)
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}
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metric := labels.FromStrings("__name__", "foo")
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a.Add(metric, 1493712816939, 1.0)
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a.Add(metric, 1493712846939, 1.0)
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if err := a.Commit(); err != nil {
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t.Fatal(err)
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}
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query, err := engine.NewInstantQuery(storage, "deriv(foo[30m])", timestamp.Time(1493712846939))
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if err != nil {
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t.Fatalf("Error parsing query: %s", err)
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}
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result := query.Exec(context.Background())
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if result.Err != nil {
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t.Fatalf("Error running query: %s", result.Err)
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}
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vec, _ := result.Vector()
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if len(vec) != 1 {
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t.Fatalf("Expected 1 result, got %d", len(vec))
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}
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if vec[0].V != 0.0 {
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t.Fatalf("Expected 0.0 as value, got %f", vec[0].V)
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}
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}
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