mirror of
https://github.com/etcd-io/etcd.git
synced 2024-09-27 06:25:44 +00:00
b1d41016b2
Moves the vendor/ directory to cmd/vendor. Vendored binaries are built from cmd/, which is backed by symlinks pointing back to repo root.
107 lines
3.1 KiB
Go
107 lines
3.1 KiB
Go
// Copyright 2014 The Cockroach 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
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// implied. See the License for the specific language governing
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// permissions and limitations under the License. See the AUTHORS file
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// for names of contributors.
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//
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// Author: Tyler Neely (t@jujit.su)
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package loghisto
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import (
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"fmt"
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"os"
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"runtime"
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"text/tabwriter"
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"time"
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)
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// PrintBenchmark will run the provided function at the specified
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// concurrency, time the operation, and once per second write the
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// following information to standard out:
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//
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// 2014-08-09 17:44:57 -0400 EDT
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// raft_AppendLogEntries_count: 16488
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// raft_AppendLogEntries_max: 3.982478339757623e+07
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// raft_AppendLogEntries_99.99: 3.864778314316012e+07
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// raft_AppendLogEntries_99.9: 3.4366224772310276e+06
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// raft_AppendLogEntries_99: 2.0228126576114902e+06
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// raft_AppendLogEntries_50: 469769.7083161708
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// raft_AppendLogEntries_min: 129313.15075081984
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// raft_AppendLogEntries_sum: 9.975892639594093e+09
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// raft_AppendLogEntries_avg: 605039.5827022133
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// raft_AppendLogEntries_agg_avg: 618937
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// raft_AppendLogEntries_agg_count: 121095
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// raft_AppendLogEntries_agg_sum: 7.4950269894e+10
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// sys.Alloc: 997328
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// sys.NumGC: 1115
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// sys.PauseTotalNs: 2.94946542e+08
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// sys.NumGoroutine: 26
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func PrintBenchmark(name string, concurrency uint, op func()) {
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runtime.GOMAXPROCS(runtime.NumCPU())
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var ms = NewMetricSystem(time.Second, true)
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mc := make(chan *ProcessedMetricSet, 1)
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ms.SubscribeToProcessedMetrics(mc)
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ms.Start()
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defer ms.Stop()
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go receiver(name, mc)
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for i := uint(0); i < concurrency; i++ {
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go func() {
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for {
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timer := ms.StartTimer(name)
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op()
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timer.Stop()
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}
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}()
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}
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<-make(chan struct{})
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}
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func receiver(name string, mc chan *ProcessedMetricSet) {
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interesting := []string{
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fmt.Sprintf("%s_count", name),
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fmt.Sprintf("%s_max", name),
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fmt.Sprintf("%s_99.99", name),
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fmt.Sprintf("%s_99.9", name),
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fmt.Sprintf("%s_99", name),
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fmt.Sprintf("%s_95", name),
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fmt.Sprintf("%s_90", name),
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fmt.Sprintf("%s_75", name),
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fmt.Sprintf("%s_50", name),
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fmt.Sprintf("%s_min", name),
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fmt.Sprintf("%s_sum", name),
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fmt.Sprintf("%s_avg", name),
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fmt.Sprintf("%s_agg_avg", name),
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fmt.Sprintf("%s_agg_count", name),
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fmt.Sprintf("%s_agg_sum", name),
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"sys.Alloc",
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"sys.NumGC",
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"sys.PauseTotalNs",
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"sys.NumGoroutine",
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}
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w := new(tabwriter.Writer)
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w.Init(os.Stdout, 0, 8, 0, '\t', 0)
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for m := range mc {
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fmt.Fprintln(w, m.Time)
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for _, e := range interesting {
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fmt.Fprintln(w, fmt.Sprintf("%s:\t", e), m.Metrics[e])
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}
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fmt.Fprintln(w)
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w.Flush()
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}
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}
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