github.com/SagerNet/gvisor@v0.0.0-20210707092255-7731c139d75c/test/benchmarks/tools/redis.go (about)

     1  // Copyright 2020 The gVisor Authors.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package tools
    16  
    17  import (
    18  	"fmt"
    19  	"net"
    20  	"regexp"
    21  	"strconv"
    22  	"testing"
    23  )
    24  
    25  // Redis is for the client 'redis-benchmark'.
    26  type Redis struct {
    27  	Operation string
    28  }
    29  
    30  // MakeCmd returns a redis-benchmark client command.
    31  func (r *Redis) MakeCmd(ip net.IP, port, requests int) []string {
    32  	// There is no -t PING_BULK for redis-benchmark, so adjust the command in that case.
    33  	// Note that "ping" will run both PING_INLINE and PING_BULK.
    34  	if r.Operation == "PING_BULK" {
    35  		return []string{
    36  			"redis-benchmark",
    37  			"--csv",
    38  			"-t", "ping",
    39  			"-h", ip.String(),
    40  			"-p", fmt.Sprintf("%d", port),
    41  			"-n", fmt.Sprintf("%d", requests),
    42  		}
    43  	}
    44  
    45  	// runs redis-benchmark -t operation for 100K requests against server.
    46  	return []string{
    47  		"redis-benchmark",
    48  		"--csv",
    49  		"-t", r.Operation,
    50  		"-h", ip.String(),
    51  		"-p", fmt.Sprintf("%d", port),
    52  		"-n", fmt.Sprintf("%d", requests),
    53  	}
    54  }
    55  
    56  // Report parses output from redis-benchmark client and reports metrics.
    57  func (r *Redis) Report(b *testing.B, output string) {
    58  	b.Helper()
    59  	result, err := r.parseOperation(output)
    60  	if err != nil {
    61  		b.Fatalf("parsing result %s failed with err: %v", output, err)
    62  	}
    63  	ReportCustomMetric(b, result, r.Operation /*metric_name*/, "QPS" /*unit*/)
    64  }
    65  
    66  // parseOperation grabs the metric operations per second from redis-benchmark output.
    67  func (r *Redis) parseOperation(data string) (float64, error) {
    68  	re := regexp.MustCompile(fmt.Sprintf(`"%s( .*)?","(\d*\.\d*)"`, r.Operation))
    69  	match := re.FindStringSubmatch(data)
    70  	if len(match) < 3 {
    71  		return 0.0, fmt.Errorf("could not find %s in %s", r.Operation, data)
    72  	}
    73  	return strconv.ParseFloat(match[2], 64)
    74  }