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// Copyright 2020 The gVisor Authors.
//
// 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
//
// 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 tools
import (
"fmt"
"net"
"regexp"
"strconv"
"strings"
"testing"
)
// Redis is for the client 'redis-benchmark'.
type Redis struct {
Operation string
}
// MakeCmd returns a redis-benchmark client command.
func (r *Redis) MakeCmd(ip net.IP, port int) []string {
// There is no -t PING_BULK for redis-benchmark, so adjust the command in that case.
// Note that "ping" will run both PING_INLINE and PING_BULK.
if r.Operation == "PING_BULK" {
return strings.Split(
fmt.Sprintf("redis-benchmark --csv -t ping -h %s -p %d", ip, port), " ")
}
// runs redis-benchmark -t operation for 100K requests against server.
return strings.Split(
fmt.Sprintf("redis-benchmark --csv -t %s -h %s -p %d", r.Operation, ip, port), " ")
}
// Report parses output from redis-benchmark client and reports metrics.
func (r *Redis) Report(b *testing.B, output string) {
b.Helper()
result, err := r.parseOperation(output)
if err != nil {
b.Fatalf("parsing result %s failed with err: %v", output, err)
}
b.ReportMetric(result, r.Operation) // operations per second
}
// parseOperation grabs the metric operations per second from redis-benchmark output.
func (r *Redis) parseOperation(data string) (float64, error) {
re := regexp.MustCompile(fmt.Sprintf(`"%s( .*)?","(\d*\.\d*)"`, r.Operation))
match := re.FindStringSubmatch(data)
// If no match, simply don't add it to the result map.
if len(match) < 3 {
return 0.0, fmt.Errorf("could not find %s in %s", r.Operation, data)
}
return strconv.ParseFloat(match[2], 64)
}
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