mirror of
https://github.com/prometheus/prometheus.git
synced 2024-12-25 13:44:05 -08:00
9199fcb8d1
This commit adds `@ <timestamp>` modifier as per this design doc: https://docs.google.com/document/d/1uSbD3T2beM-iX4-Hp7V074bzBRiRNlqUdcWP6JTDQSs/edit. An example query: ``` rate(process_cpu_seconds_total[1m]) and topk(7, rate(process_cpu_seconds_total[1h] @ 1234)) ``` which ranks based on last 1h rate and w.r.t. unix timestamp 1234 but actually plots the 1m rate. Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in>
35 lines
1.1 KiB
Go
35 lines
1.1 KiB
Go
// Copyright 2017 The Prometheus Authors
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package timestamp
|
|
|
|
import (
|
|
"math"
|
|
"time"
|
|
)
|
|
|
|
// FromTime returns a new millisecond timestamp from a time.
|
|
func FromTime(t time.Time) int64 {
|
|
return t.Unix()*1000 + int64(t.Nanosecond())/int64(time.Millisecond)
|
|
}
|
|
|
|
// Time returns a new time.Time object from a millisecond timestamp.
|
|
func Time(ts int64) time.Time {
|
|
return time.Unix(ts/1000, (ts%1000)*int64(time.Millisecond)).UTC()
|
|
}
|
|
|
|
// FromFloatSeconds returns a millisecond timestamp from float seconds.
|
|
func FromFloatSeconds(ts float64) int64 {
|
|
return int64(math.Round(ts * 1000))
|
|
}
|