96 lines
2.7 KiB
Go
96 lines
2.7 KiB
Go
// Copyright 2013 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 stats
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// QueryTiming identifies the code area or functionality in which time is spent
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// during a query.
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type QueryTiming int
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// Query timings.
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const (
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EvalTotalTime QueryTiming = iota
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ResultSortTime
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QueryPreparationTime
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InnerEvalTime
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ResultAppendTime
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ExecQueueTime
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ExecTotalTime
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)
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// Return a string representation of a QueryTiming identifier.
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func (s QueryTiming) String() string {
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switch s {
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case EvalTotalTime:
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return "Eval total time"
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case ResultSortTime:
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return "Result sorting time"
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case QueryPreparationTime:
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return "Query preparation time"
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case InnerEvalTime:
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return "Inner eval time"
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case ResultAppendTime:
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return "Result append time"
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case ExecQueueTime:
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return "Exec queue wait time"
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case ExecTotalTime:
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return "Exec total time"
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default:
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return "Unknown query timing"
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}
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}
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// queryTimings with all query timers mapped to durations.
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type queryTimings struct {
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EvalTotalTime float64 `json:"evalTotalTime"`
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ResultSortTime float64 `json:"resultSortTime"`
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QueryPreparationTime float64 `json:"queryPreparationTime"`
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InnerEvalTime float64 `json:"innerEvalTime"`
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ResultAppendTime float64 `json:"resultAppendTime"`
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ExecQueueTime float64 `json:"execQueueTime"`
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ExecTotalTime float64 `json:"execTotalTime"`
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}
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// QueryStats currently only holding query timings.
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type QueryStats struct {
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Timings queryTimings `json:"timings,omitempty"`
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}
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// NewQueryStats makes a QueryStats struct with all QueryTimings found in the
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// given TimerGroup.
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func NewQueryStats(tg *TimerGroup) *QueryStats {
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var qt queryTimings
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for s, timer := range tg.timers {
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switch s {
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case EvalTotalTime:
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qt.EvalTotalTime = timer.Duration()
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case ResultSortTime:
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qt.ResultSortTime = timer.Duration()
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case QueryPreparationTime:
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qt.QueryPreparationTime = timer.Duration()
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case InnerEvalTime:
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qt.InnerEvalTime = timer.Duration()
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case ResultAppendTime:
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qt.ResultAppendTime = timer.Duration()
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case ExecQueueTime:
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qt.ExecQueueTime = timer.Duration()
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case ExecTotalTime:
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qt.ExecTotalTime = timer.Duration()
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}
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}
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qs := QueryStats{Timings: qt}
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return &qs
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}
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