mirror of
https://github.com/minio/minio.git
synced 2024-12-25 22:55:54 -05:00
0c80bf45d0
- Implement a graph algorithm to test network bandwidth from every node to every other node - Saturate any network bandwidth adaptively, accounting for slow and fast network capacity - Implement parallel drive OBD tests - Implement a paging mechanism for OBD test to provide periodic updates to client - Implement Sys, Process, Host, Mem OBD Infos
117 lines
3.8 KiB
Go
117 lines
3.8 KiB
Go
/*
|
|
* MinIO Cloud Storage, (C) 2020 MinIO, Inc.
|
|
*
|
|
* 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 net
|
|
|
|
import (
|
|
"github.com/montanaflynn/stats"
|
|
)
|
|
|
|
// Latency holds latency information for read/write operations to the drive
|
|
type Latency struct {
|
|
Avg float64 `json:"avg_secs,omitempty"`
|
|
Percentile50 float64 `json:"percentile50_secs,omitempty"`
|
|
Percentile90 float64 `json:"percentile90_secs,omitempty"`
|
|
Percentile99 float64 `json:"percentile99_secs,omitempty"`
|
|
Min float64 `json:"min_secs,omitempty"`
|
|
Max float64 `json:"max_secs,omitempty"`
|
|
}
|
|
|
|
// Throughput holds throughput information for read/write operations to the drive
|
|
type Throughput struct {
|
|
Avg float64 `json:"avg_bytes_per_sec,omitempty"`
|
|
Percentile50 float64 `json:"percentile50_bytes_per_sec,omitempty"`
|
|
Percentile90 float64 `json:"percentile90_bytes_per_sec,omitempty"`
|
|
Percentile99 float64 `json:"percentile99_bytes_per_sec,omitempty"`
|
|
Min float64 `json:"min_bytes_per_sec,omitempty"`
|
|
Max float64 `json:"max_bytes_per_sec,omitempty"`
|
|
}
|
|
|
|
// ComputeOBDStats takes arrays of Latency & Throughput to compute Statistics
|
|
func ComputeOBDStats(latencies, throughputs []float64) (Latency, Throughput, error) {
|
|
var avgLatency float64
|
|
var percentile50Latency float64
|
|
var percentile90Latency float64
|
|
var percentile99Latency float64
|
|
var minLatency float64
|
|
var maxLatency float64
|
|
|
|
var avgThroughput float64
|
|
var percentile50Throughput float64
|
|
var percentile90Throughput float64
|
|
var percentile99Throughput float64
|
|
var minThroughput float64
|
|
var maxThroughput float64
|
|
var err error
|
|
|
|
if avgLatency, err = stats.Mean(latencies); err != nil {
|
|
return Latency{}, Throughput{}, err
|
|
}
|
|
if percentile50Latency, err = stats.Percentile(latencies, 50); err != nil {
|
|
return Latency{}, Throughput{}, err
|
|
}
|
|
if percentile90Latency, err = stats.Percentile(latencies, 90); err != nil {
|
|
return Latency{}, Throughput{}, err
|
|
}
|
|
if percentile99Latency, err = stats.Percentile(latencies, 99); err != nil {
|
|
return Latency{}, Throughput{}, err
|
|
}
|
|
if maxLatency, err = stats.Max(latencies); err != nil {
|
|
return Latency{}, Throughput{}, err
|
|
}
|
|
if minLatency, err = stats.Min(latencies); err != nil {
|
|
return Latency{}, Throughput{}, err
|
|
}
|
|
l := Latency{
|
|
Avg: avgLatency,
|
|
Percentile50: percentile50Latency,
|
|
Percentile90: percentile90Latency,
|
|
Percentile99: percentile99Latency,
|
|
Min: minLatency,
|
|
Max: maxLatency,
|
|
}
|
|
|
|
if avgThroughput, err = stats.Mean(throughputs); err != nil {
|
|
return Latency{}, Throughput{}, err
|
|
}
|
|
if percentile50Throughput, err = stats.Percentile(throughputs, 50); err != nil {
|
|
return Latency{}, Throughput{}, err
|
|
}
|
|
if percentile90Throughput, err = stats.Percentile(throughputs, 90); err != nil {
|
|
return Latency{}, Throughput{}, err
|
|
}
|
|
if percentile99Throughput, err = stats.Percentile(throughputs, 99); err != nil {
|
|
return Latency{}, Throughput{}, err
|
|
}
|
|
if maxThroughput, err = stats.Max(throughputs); err != nil {
|
|
return Latency{}, Throughput{}, err
|
|
}
|
|
if minThroughput, err = stats.Min(throughputs); err != nil {
|
|
return Latency{}, Throughput{}, err
|
|
}
|
|
t := Throughput{
|
|
Avg: avgThroughput,
|
|
Percentile50: percentile50Throughput,
|
|
Percentile90: percentile90Throughput,
|
|
Percentile99: percentile99Throughput,
|
|
Min: minThroughput,
|
|
Max: maxThroughput,
|
|
}
|
|
|
|
return l, t, nil
|
|
}
|