mixbench.go

Documentation: github.com/gogo/protobuf/test/mixbench

     1  // Protocol Buffers for Go with Gadgets
     2  //
     3  // Copyright (c) 2013, The GoGo Authors. All rights reserved.
     4  // http://github.com/gogo/protobuf
     5  //
     6  // Redistribution and use in source and binary forms, with or without
     7  // modification, are permitted provided that the following conditions are
     8  // met:
     9  //
    10  //     * Redistributions of source code must retain the above copyright
    11  // notice, this list of conditions and the following disclaimer.
    12  //     * Redistributions in binary form must reproduce the above
    13  // copyright notice, this list of conditions and the following disclaimer
    14  // in the documentation and/or other materials provided with the
    15  // distribution.
    16  //
    17  // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    18  // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    19  // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
    20  // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
    21  // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
    22  // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
    23  // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
    24  // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
    25  // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
    26  // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
    27  // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
    28  
    29  package main
    30  
    31  import (
    32  	"flag"
    33  	"fmt"
    34  	"io/ioutil"
    35  	"os/exec"
    36  	"sort"
    37  	"strings"
    38  )
    39  
    40  func bench(folder, rgx, outFileName string) {
    41  	var test = exec.Command("go", "test", "-test.timeout=20m", "-test.v", "-test.run=XXX", "-test.bench="+rgx, folder)
    42  	fmt.Printf("benching %v - %v - %v\n", folder, rgx, outFileName)
    43  	out, err := test.CombinedOutput()
    44  	fmt.Printf("bench output: %v\n", string(out))
    45  	if err != nil {
    46  		panic(err)
    47  	}
    48  	if err := ioutil.WriteFile(outFileName, out, 0666); err != nil {
    49  		panic(err)
    50  	}
    51  }
    52  
    53  func main() {
    54  	flag.Parse()
    55  	fmt.Printf("Running benches: %v\n", benchList)
    56  	for _, bench := range strings.Split(benchList, " ") {
    57  		b, ok := benches[bench]
    58  		if !ok {
    59  			fmt.Printf("No benchmark with name: %v\n", bench)
    60  			continue
    61  		}
    62  		b()
    63  	}
    64  	if strings.Contains(benchList, "all") {
    65  		fmt.Println("Running benchcmp will show the performance difference between using reflect and generated code for marshalling and unmarshalling of protocol buffers")
    66  		fmt.Println("benchcmp ./test/mixbench/marshal.txt ./test/mixbench/marshaler.txt")
    67  		fmt.Println("benchcmp ./test/mixbench/unmarshal.txt ./test/mixbench/unmarshaler.txt")
    68  	}
    69  }
    70  
    71  var benches = make(map[string]func())
    72  
    73  var benchList string
    74  
    75  func init() {
    76  	benches["marshaler"] = func() { bench("./test/combos/both/", "ProtoMarshal", "./test/mixbench/marshaler.txt") }
    77  	benches["marshal"] = func() { bench("./test/", "ProtoMarshal", "./test/mixbench/marshal.txt") }
    78  	benches["unmarshaler"] = func() { bench("./test/combos/both/", "ProtoUnmarshal", "./test/mixbench/unmarshaler.txt") }
    79  	benches["unmarshal"] = func() { bench("./test/", "ProtoUnmarshal", "./test/mixbench/unmarshal.txt") }
    80  	var ops []string
    81  	for k := range benches {
    82  		ops = append(ops, k)
    83  	}
    84  	sort.Strings(ops)
    85  	benches["all"] = benchall(ops)
    86  	ops = append(ops, "all")
    87  	flag.StringVar(&benchList, "benchlist", "all", fmt.Sprintf("List of benchmarks to run. Options: %v", ops))
    88  }
    89  
    90  func benchall(ops []string) func() {
    91  	return func() {
    92  		for _, o := range ops {
    93  			benches[o]()
    94  		}
    95  	}
    96  }
    97
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