David Benjamin
33d1049b1f
We use the standard Apache 2.0 file header, described in "APPENDIX: How to apply the Apache License to your work." This was primarily automated by running: git ls-tree -r --name-only HEAD | xargs go run ./util/relicense.go See go/boringssl-relicensing-triage for the results of triaging the output of the tool. As part of this, switch from taking fiat-crypto under MIT license to Apache 2.0. (It is licensed under MIT OR Apache-2.0 OR BSD-1-Clause.) The copyright_summary tool can also be used to confirm we didn't accidentally drop any copyright lines: # Run before the CL git grep -l Copyright | xargs go run ./util/copyright_summary.go -out /tmp/old.json # Run after the CL git grep -l Copyright | xargs go run ./util/copyright_summary.go -compare /tmp/old.json Bug: 364634028 Change-Id: I17c50e761e9d077a1f92e25969e50ed35e320c59 Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/75852 Reviewed-by: Bob Beck <bbe@google.com> Commit-Queue: David Benjamin <davidben@google.com> Reviewed-by: Adam Langley <agl@google.com>
116 lines
3.2 KiB
Go
116 lines
3.2 KiB
Go
// Copyright (c) 2020 The BoringSSL Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//go:build ignore
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// compare_benchmarks takes the JSON-formatted output of bssl speed and
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// compares it against a baseline output.
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package main
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import (
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"encoding/json"
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"flag"
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"fmt"
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"os"
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)
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var baselineFile = flag.String("baseline", "", "the path to the JSON file containing the base results")
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type Result struct {
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Description string `json:"description"`
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NumCalls int `json:"numCalls"`
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Microseconds int `json:"microseconds"`
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BytesPerCall int `json:"bytesPerCall"`
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}
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func (r *Result) Speed() (float64, string) {
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callsPerSecond := float64(r.NumCalls) / float64(r.Microseconds) * 1000000
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if r.BytesPerCall == 0 {
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return callsPerSecond, "ops/sec"
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}
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return callsPerSecond * float64(r.BytesPerCall) / 1000000, "MB/sec"
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}
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func printResult(result Result, baseline *Result) error {
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if baseline != nil {
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if result.Description != baseline.Description {
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return fmt.Errorf("result did not match baseline: %q vs %q", result.Description, baseline.Description)
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}
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if result.BytesPerCall != baseline.BytesPerCall {
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return fmt.Errorf("result %q bytes per call did not match baseline: %d vs %d", result.Description, result.BytesPerCall, baseline.BytesPerCall)
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}
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}
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newSpeed, unit := result.Speed()
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fmt.Printf("Did %d %s operations in %dus (%.1f %s)", result.NumCalls, result.Description, result.Microseconds, newSpeed, unit)
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if baseline != nil {
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oldSpeed, _ := baseline.Speed()
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fmt.Printf(" [%+.1f%%]", (newSpeed-oldSpeed)/oldSpeed*100)
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}
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fmt.Printf("\n")
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return nil
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}
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func readResults(path string) ([]Result, error) {
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data, err := os.ReadFile(path)
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if err != nil {
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return nil, err
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}
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var ret []Result
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if err := json.Unmarshal(data, &ret); err != nil {
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return nil, err
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}
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return ret, nil
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}
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func main() {
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flag.Parse()
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baseline, err := readResults(*baselineFile)
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if err != nil {
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fmt.Fprintf(os.Stderr, "Error reading %q: %s\n", *baselineFile, err)
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os.Exit(1)
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}
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fmt.Println(*baselineFile)
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for _, result := range baseline {
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if err := printResult(result, nil); err != nil {
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fmt.Fprintf(os.Stderr, "Error in %q: %s\n", *baselineFile, err)
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os.Exit(1)
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}
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}
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for _, arg := range flag.Args() {
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results, err := readResults(arg)
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if err != nil {
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fmt.Fprintf(os.Stderr, "Error reading %q: %s\n", arg, err)
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os.Exit(1)
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}
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if len(results) != len(baseline) {
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fmt.Fprintf(os.Stderr, "Result files %q and %q have different lengths\n", arg, *baselineFile)
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os.Exit(1)
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}
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fmt.Printf("\n%s\n", arg)
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for i, result := range results {
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if err := printResult(result, &baseline[i]); err != nil {
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fmt.Fprintf(os.Stderr, "Error in %q: %s\n", arg, err)
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os.Exit(1)
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}
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}
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}
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}
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