hugo/commands/benchmark.go

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// Copyright 2015 The Hugo Authors. All rights reserved.
//
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// 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
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// 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 commands
import (
"github.com/spf13/cobra"
"os"
"runtime/pprof"
)
var (
benchmarkTimes int
cpuProfilefile string
memProfilefile string
)
var benchmarkCmd = &cobra.Command{
Use: "benchmark",
Short: "Benchmark hugo by building a site a number of times.",
Long: `Hugo can build a site many times over and analyze the running process
creating a benchmark.`,
}
func init() {
initHugoBuilderFlags(benchmarkCmd)
initBenchmarkBuildingFlags(benchmarkCmd)
benchmarkCmd.Flags().StringVar(&cpuProfilefile, "cpuprofile", "", "path/filename for the CPU profile file")
benchmarkCmd.Flags().StringVar(&memProfilefile, "memprofile", "", "path/filename for the memory profile file")
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benchmarkCmd.Flags().IntVarP(&benchmarkTimes, "count", "n", 13, "number of times to build the site")
benchmarkCmd.RunE = benchmark
}
func benchmark(cmd *cobra.Command, args []string) error {
if err := InitializeConfig(benchmarkCmd); err != nil {
return err
}
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if memProfilefile != "" {
f, err := os.Create(memProfilefile)
if err != nil {
return err
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}
for i := 0; i < benchmarkTimes; i++ {
mainSite = nil
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_ = buildSite()
}
pprof.WriteHeapProfile(f)
f.Close()
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} else {
if cpuProfilefile == "" {
cpuProfilefile = "/tmp/hugo-cpuprofile"
}
f, err := os.Create(cpuProfilefile)
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if err != nil {
return err
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}
pprof.StartCPUProfile(f)
defer pprof.StopCPUProfile()
for i := 0; i < benchmarkTimes; i++ {
mainSite = nil
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_ = buildSite()
}
}
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return nil
}