124 lines
3.5 KiB
V
124 lines
3.5 KiB
V
// Copyright (c) 2019-2021 Alexander Medvednikov. All rights reserved.
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// Use of this source code is governed by an MIT license
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// that can be found in the LICENSE file.
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import os
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import time
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fn main() {
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exe := os.executable()
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dir := os.dir(exe)
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vdir := os.dir(os.dir(os.dir(dir)))
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if !os.exists('$vdir/v') && !os.is_dir('$vdir/vlib') {
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println('fast.html generator needs to be located in `v/cmd/tools/fast`')
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}
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println('fast.html generator\n')
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println('Fetching updates...')
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ret := os.system('$vdir/v up')
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if ret != 0 {
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println('failed to update V')
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return
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}
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// Fetch the last commit's hash
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commit := exec('git rev-parse HEAD')[..8]
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if !os.exists('table.html') {
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os.create('table.html') ?
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}
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mut table := os.read_file('table.html') ?
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if table.contains('>$commit<') {
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println('nothing to benchmark')
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exit(1)
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return
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}
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// for i, commit in commits {
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message := exec('git log --pretty=format:"%s" -n1 $commit')
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// println('\n${i + 1}/$commits.len Benchmarking commit $commit "$message"')
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println('\nBenchmarking commit $commit "$message"')
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// Build an optimized V
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// println('Checking out ${commit}...')
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// exec('git checkout $commit')
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println(' Building vprod...')
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exec('v -o $vdir/vprod -prod $vdir/cmd/v')
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diff1 := measure('$vdir/vprod -cc clang -o v.c -show-timings $vdir/cmd/v', 'v.c')
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diff2 := measure('$vdir/vprod -cc clang -o v2 $vdir/cmd/v', 'v2')
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diff3 := measure('$vdir/vprod -x64 $vdir/cmd/tools/1mil.v', 'x64 1mil')
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diff4 := measure('$vdir/vprod -cc clang $vdir/examples/hello_world.v', 'hello.v')
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vc_size := os.file_size('v.c') / 1000
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// parse/check/cgen
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parse, check, cgen := measure_steps(vdir)
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// println('Building V took ${diff}ms')
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commit_date := exec('git log -n1 --pretty="format:%at" $commit')
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date := time.unix(commit_date.int())
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mut out := os.create('table.html') ?
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// Place the new row on top
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table =
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'<tr>
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<td>$date.format()</td>
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<td><a target=_blank href="https://github.com/vlang/v/commit/$commit">$commit</a></td>
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<td>$message</td>
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<td>${diff1}ms</td>
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<td>${diff2}ms</td>
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<td>${diff3}ms</td>
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<td>${diff4}ms</td>
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<td>$vc_size KB</td>
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<td>${parse}ms</td>
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<td>${check}ms</td>
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<td>${cgen}ms</td>
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</tr>\n' +
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table.trim_space()
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out.writeln(table) ?
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out.close()
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// Regenerate index.html
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header := os.read_file('header.html') ?
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footer := os.read_file('footer.html') ?
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mut res := os.create('index.html') ?
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res.writeln(header) ?
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res.writeln(table) ?
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res.writeln(footer) ?
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res.close()
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//}
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// exec('git checkout master')
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// os.write_file('last_commit.txt', commits[commits.len - 1]) ?
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}
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fn exec(s string) string {
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e := os.exec(s) or { panic(err.msg) }
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return e.output.trim_right('\r\n')
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}
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// returns milliseconds
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fn measure(cmd string, description string) int {
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println(' Measuring $description')
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println(' Warming up...')
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for _ in 0 .. 3 {
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exec(cmd)
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}
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println(' Building...')
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mut runs := []int{}
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for r in 0 .. 5 {
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println(' Sample ${r + 1}/5')
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sw := time.new_stopwatch({})
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exec(cmd)
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runs << int(sw.elapsed().milliseconds())
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}
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// discard lowest and highest time
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runs.sort()
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runs = runs[1..4]
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mut sum := 0
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for run in runs {
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sum += run
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}
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return int(sum / 3)
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}
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fn measure_steps(vdir string) (int, int, int) {
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resp := os.exec('$vdir/vprod -o v.c -show-timings $vdir/cmd/v') or { panic(err.msg) }
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lines := resp.output.split_into_lines()
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if lines.len != 3 {
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return 0, 0, 0
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}
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parse := lines[0].before('.').int()
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check := lines[1].before('.').int()
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cgen := lines[2].before('.').int()
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return parse, check, cgen
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}
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