Add benchmarks results to readme (#548)
This commit is contained in:
Thomas Pelletier
@@ -4,7 +4,6 @@ Go library for the [TOML](https://toml.io/en/) format.
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This library supports [TOML v1.0.0](https://toml.io/en/v1.0.0).
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## Development status
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This is the upcoming major version of go-toml. It is currently in active
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@@ -20,14 +19,12 @@ encouraged to try out this version.
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[💬 Anything else](https://github.com/pelletier/go-toml/discussions)
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## Documentation
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Full API, examples, and implementation notes are available in the Go documentation.
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[](https://pkg.go.dev/github.com/pelletier/go-toml/v2)
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## Import
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```go
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@@ -44,7 +41,7 @@ standard library's `encoding/json`.
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### Performance
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While go-toml favors usability, it is written with performance in mind. Most
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operations should not be shockingly slow.
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operations should not be shockingly slow. See [benchmarks](#benchmarks).
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### Strict mode
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@@ -150,6 +147,43 @@ fmt.Println(string(b))
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[marshal]: https://pkg.go.dev/github.com/pelletier/go-toml/v2#Marshal
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## Benchmarks
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Execution time speedup compared to other Go TOML libraries:
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<table>
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<thead>
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<tr><th>Benchmark</th><th>go-toml v1</th><th>BurntSushi/toml</th></tr>
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</thead>
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<tbody>
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<tr><td>HugoFrontMatter</td><td>2.6x</td><td>2.2x</td></tr>
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<tr><td>ReferenceFile/map</td><td>2.8x</td><td>3.0x</td></tr>
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<tr><td>ReferenceFile/struct</td><td>5.4x</td><td>6.2x</td></tr>
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</tbody>
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</table>
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<details><summary>See more</summary>
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<p>The table above has the results of the most common use-cases. The table
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below contains the results of all benchmarks, including unrealistic ones. is
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provided for completeness.</p>
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<table>
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<thead>
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<tr><th>Benchmark</th><th>go-toml v1</th><th>BurntSushi/toml</th></tr>
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</thead>
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<tbody>
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<tr><td>UnmarshalSimple/map</td><td>3.8x</td><td>2.4x</td></tr>
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<tr><td>UnmarshalSimple/struct</td><td>5.4x</td><td>3.1x</td></tr>
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<tr><td>UnmarshalDataset/example</td><td>2.8x</td><td>2.0x</td></tr>
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<tr><td>UnmarshalDataset/code</td><td>1.8x</td><td>2.2x</td></tr>
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<tr><td>UnmarshalDataset/twitter</td><td>2.5x</td><td>1.8x</td></tr>
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<tr><td>UnmarshalDataset/citm_catalog</td><td>1.9x</td><td>1.2x</td></tr>
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<tr><td>UnmarshalDataset/config</td><td>3.0x</td><td>2.5x</td></tr>
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<tr><td>[Geo mean]</td><td>3.0x</td><td>2.4x</td></tr>
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</tbody>
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</table>
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<p>This table can be generated with <code>./ci.sh benchmark -a -html</code>.</p>
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</details>
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## Migrating from v1
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This section describes the differences between v1 and v2, with some pointers on
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@@ -252,7 +286,6 @@ This method was not widely used, poorly defined, and added a lot of complexity.
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A similar effect can be achieved by implementing the `encoding.TextUnmarshaler`
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interface and use strings.
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#### Support for `default` struct tag has been dropped
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This feature adds complexity and a poorly defined API for an effect that can be
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@@ -311,7 +344,6 @@ manually sort the fields alphabetically in the struct definition.
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V1 automatically indents content of tables by default. V2 does not. However the
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same behavior can be obtained using [`Encoder.SetIndentTables`][sit]. For example:
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```go
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data := map[string]interface{}{
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"table": map[string]string{
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@@ -42,6 +42,9 @@ benchmark [OPTIONS...] [BRANCH]
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-a Compare benchmarks of HEAD against go-toml v1 and
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BurntSushi/toml.
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-html When used with -a, emits the output as HTML, ready to be
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embedded in the README.
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coverage [OPTIONS...] [BRANCH]
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Generates code coverage.
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@@ -150,16 +153,78 @@ bench() {
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fi
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}
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fmktemp() {
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if mktemp --version|grep GNU >/dev/null; then
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mktemp --suffix=-$1;
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else
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mktemp -t $1;
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fi
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}
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benchstathtml() {
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python3 - $1 <<'EOF'
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import sys
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lines = []
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stop = False
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with open(sys.argv[1]) as f:
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for line in f.readlines():
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line = line.strip()
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if line == "":
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stop = True
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if not stop:
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lines.append(line.split(','))
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results = []
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for line in reversed(lines[1:]):
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v2 = float(line[1])
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results.append([
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line[0].replace("-32", ""),
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"%.1fx" % (float(line[3])/v2), # v1
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"%.1fx" % (float(line[5])/v2), # bs
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])
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# move geomean to the end
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results.append(results[0])
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del results[0]
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def printtable(data):
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print("""
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<table>
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<thead>
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<tr><th>Benchmark</th><th>go-toml v1</th><th>BurntSushi/toml</th></tr>
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</thead>
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<tbody>""")
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for r in data:
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print(" <tr><td>{}</td><td>{}</td><td>{}</td></tr>".format(*r))
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print(""" </tbody>
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</table>""")
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fold = 3
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printtable(results[:fold])
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print("<details><summary>See more</summary>")
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print('<p>The table above has the results of the most common use-cases. The table below contains the results of all benchmarks, including unrealistic ones. is provided for completeness.</p>')
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printtable(results[fold:])
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print('<p>This table can be generated with <code>./ci.sh benchmark -a -html</code>.</p>')
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print("</details>")
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EOF
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}
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benchmark() {
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case "$1" in
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-d)
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shift
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target="${1?Need to provide a target branch argument}"
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old=`mktemp --suffix=-${target}`
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old=`fmktemp ${target}`
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bench "${target}" "${old}"
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new=`mktemp --suffix=-HEAD`
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new=`fmktemp HEAD`
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bench HEAD "${new}"
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benchstat "${old}" "${new}"
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@@ -168,18 +233,24 @@ benchmark() {
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-a)
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shift
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v2stats=`mktemp -t go-toml-v2`
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v2stats=`fmktemp go-toml-v2`
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bench HEAD "${v2stats}" "github.com/pelletier/go-toml/v2"
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v1stats=`mktemp -t go-toml-v1`
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v1stats=`fmktemp go-toml-v1`
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bench HEAD "${v1stats}" "github.com/pelletier/go-toml"
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bsstats=`mktemp -t bs-toml`
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bsstats=`fmktemp bs-toml`
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bench HEAD "${bsstats}" "github.com/BurntSushi/toml"
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cp "${v2stats}" go-toml-v2.txt
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cp "${v1stats}" go-toml-v1.txt
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cp "${bsstats}" bs-toml.txt
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benchstat -geomean go-toml-v2.txt go-toml-v1.txt bs-toml.txt
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if [ "$1" = "-html" ]; then
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tmpcsv=`fmktemp csv`
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benchstat -csv -geomean go-toml-v2.txt go-toml-v1.txt bs-toml.txt > $tmpcsv
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benchstathtml $tmpcsv
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else
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benchstat -geomean go-toml-v2.txt go-toml-v1.txt bs-toml.txt
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fi
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rm -f go-toml-v2.txt go-toml-v1.txt bs-toml.txt
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return $?
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