76 lines
2.3 KiB
Go
76 lines
2.3 KiB
Go
// Copyright 2020 The gVisor Authors.
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//
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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 tools
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import (
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"fmt"
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"net"
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"regexp"
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"strconv"
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"strings"
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"testing"
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)
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// Hey is for the client application 'hey'.
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type Hey struct {
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Requests int // Note: requests cannot be less than concurrency.
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Concurrency int
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Doc string
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}
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// MakeCmd returns a 'hey' command.
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func (h *Hey) MakeCmd(ip net.IP, port int) []string {
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return strings.Split(fmt.Sprintf("hey -n %d -c %d http://%s:%d/%s",
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h.Requests, h.Concurrency, ip, port, h.Doc), " ")
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}
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// Report parses output from 'hey' and reports metrics.
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func (h *Hey) Report(b *testing.B, output string) {
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b.Helper()
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requests, err := h.parseRequestsPerSecond(output)
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if err != nil {
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b.Fatalf("failed to parse requests per second: %v", err)
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}
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b.ReportMetric(requests, "requests_per_second")
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ave, err := h.parseAverageLatency(output)
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if err != nil {
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b.Fatalf("failed to parse average latency: %v", err)
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}
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b.ReportMetric(ave, "average_latency_secs")
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}
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var heyReqPerSecondRE = regexp.MustCompile(`Requests/sec:\s*(\d+\.?\d+?)\s+`)
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// parseRequestsPerSecond finds requests per second from 'hey' output.
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func (h *Hey) parseRequestsPerSecond(data string) (float64, error) {
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match := heyReqPerSecondRE.FindStringSubmatch(data)
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if len(match) < 2 {
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return 0, fmt.Errorf("failed get bandwidth: %s", data)
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}
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return strconv.ParseFloat(match[1], 64)
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}
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var heyAverageLatencyRE = regexp.MustCompile(`Average:\s*(\d+\.?\d+?)\s+secs`)
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// parseHeyAverageLatency finds Average Latency in seconds form 'hey' output.
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func (h *Hey) parseAverageLatency(data string) (float64, error) {
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match := heyAverageLatencyRE.FindStringSubmatch(data)
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if len(match) < 2 {
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return 0, fmt.Errorf("failed get average latency match%d : %s", len(match), data)
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}
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return strconv.ParseFloat(match[1], 64)
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}
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