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Diffstat (limited to 'test/benchmarks/tools/fio.go')
-rw-r--r-- | test/benchmarks/tools/fio.go | 124 |
1 files changed, 0 insertions, 124 deletions
diff --git a/test/benchmarks/tools/fio.go b/test/benchmarks/tools/fio.go deleted file mode 100644 index 20000db16..000000000 --- a/test/benchmarks/tools/fio.go +++ /dev/null @@ -1,124 +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 string // total size to be read/written of format N[GMK] (e.g. 5G). - Blocksize string // blocksize to be read/write of format N[GMK] (e.g. 4K). - Iodepth int // iodepth for reads/writes. - Time int // time to run the test in seconds, usually for rand(read/write). -} - -// 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=%s", f.Size)) - cmd = append(cmd, fmt.Sprintf("--blocksize=%s", 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)) - if f.Time != 0 { - cmd = append(cmd, "--time_based") - cmd = append(cmd, fmt.Sprintf("--runtime=%d", f.Time)) - } - 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) - } - b.ReportMetric(bw, "bandwidth_b/s") // in b/s. - - iops, err := f.parseIOps(output, isRead) - if err != nil { - b.Fatalf("failed to parse iops from %s with: %v", output, err) - } - b.ReportMetric(iops, "iops") -} - -// parseBandwidth reports the bandwidth in b/s. -func (f *Fio) parseBandwidth(data string, isRead bool) (float64, error) { - if isRead { - result, err := f.parseFioJSON(data, "read", "bw") - if err != nil { - return 0, err - } - return 1024 * result, nil - } - result, err := f.parseFioJSON(data, "write", "bw") - if err != nil { - return 0, err - } - return 1024 * result, 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) -} |