summaryrefslogtreecommitdiffhomepage
path: root/test/benchmarks/tools/fio.go
diff options
context:
space:
mode:
Diffstat (limited to 'test/benchmarks/tools/fio.go')
-rw-r--r--test/benchmarks/tools/fio.go116
1 files changed, 0 insertions, 116 deletions
diff --git a/test/benchmarks/tools/fio.go b/test/benchmarks/tools/fio.go
deleted file mode 100644
index ea12436d2..000000000
--- a/test/benchmarks/tools/fio.go
+++ /dev/null
@@ -1,116 +0,0 @@
-// 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 (
- "encoding/json"
- "fmt"
- "strconv"
- "strings"
- "testing"
-)
-
-// Fio makes 'fio' commands and parses their output.
-type Fio struct {
- Test string // test to run: read, write, randread, randwrite.
- Size int // total size to be read/written in megabytes.
- BlockSize int // block size to be read/written in kilobytes.
- IODepth int // I/O depth for reads/writes.
-}
-
-// MakeCmd makes a 'fio' command.
-func (f *Fio) MakeCmd(filename string) []string {
- cmd := []string{"fio", "--output-format=json", "--ioengine=sync"}
- cmd = append(cmd, fmt.Sprintf("--name=%s", f.Test))
- cmd = append(cmd, fmt.Sprintf("--size=%dM", f.Size))
- cmd = append(cmd, fmt.Sprintf("--blocksize=%dK", f.BlockSize))
- cmd = append(cmd, fmt.Sprintf("--filename=%s", filename))
- cmd = append(cmd, fmt.Sprintf("--iodepth=%d", f.IODepth))
- cmd = append(cmd, fmt.Sprintf("--rw=%s", f.Test))
- return cmd
-}
-
-// Report reports metrics based on output from an 'fio' command.
-func (f *Fio) Report(b *testing.B, output string) {
- b.Helper()
- // Parse the output and report the metrics.
- isRead := strings.Contains(f.Test, "read")
- bw, err := f.parseBandwidth(output, isRead)
- if err != nil {
- b.Fatalf("failed to parse bandwidth from %s with: %v", output, err)
- }
- ReportCustomMetric(b, bw, "bandwidth" /*metric name*/, "bytes_per_second" /*unit*/)
-
- iops, err := f.parseIOps(output, isRead)
- if err != nil {
- b.Fatalf("failed to parse iops from %s with: %v", output, err)
- }
- ReportCustomMetric(b, iops, "io_ops" /*metric name*/, "ops_per_second" /*unit*/)
-}
-
-// parseBandwidth reports the bandwidth in b/s.
-func (f *Fio) parseBandwidth(data string, isRead bool) (float64, error) {
- op := "write"
- if isRead {
- op = "read"
- }
- result, err := f.parseFioJSON(data, op, "bw")
- if err != nil {
- return 0, err
- }
- return result * 1024, nil
-}
-
-// parseIOps reports the write IO per second metric.
-func (f *Fio) parseIOps(data string, isRead bool) (float64, error) {
- if isRead {
- return f.parseFioJSON(data, "read", "iops")
- }
- return f.parseFioJSON(data, "write", "iops")
-}
-
-// fioResult is for parsing FioJSON.
-type fioResult struct {
- Jobs []fioJob
-}
-
-// fioJob is for parsing FioJSON.
-type fioJob map[string]json.RawMessage
-
-// fioMetrics is for parsing FioJSON.
-type fioMetrics map[string]json.RawMessage
-
-// parseFioJSON parses data and grabs "op" (read or write) and "metric"
-// (bw or iops) from the JSON.
-func (f *Fio) parseFioJSON(data, op, metric string) (float64, error) {
- var result fioResult
- if err := json.Unmarshal([]byte(data), &result); err != nil {
- return 0, fmt.Errorf("could not unmarshal data: %v", err)
- }
-
- if len(result.Jobs) < 1 {
- return 0, fmt.Errorf("no jobs present to parse")
- }
-
- var metrics fioMetrics
- if err := json.Unmarshal(result.Jobs[0][op], &metrics); err != nil {
- return 0, fmt.Errorf("could not unmarshal jobs: %v", err)
- }
-
- if _, ok := metrics[metric]; !ok {
- return 0, fmt.Errorf("no metric found for op: %s", op)
- }
- return strconv.ParseFloat(string(metrics[metric]), 64)
-}