118 lines
3.4 KiB
V
118 lines
3.4 KiB
V
// Copyright (c) 2019-2020 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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// Fetch the last commit's hash
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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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mut commit_hash := exec('git rev-parse HEAD')
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commit_hash = commit_hash[..8]
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if os.exists('last_commit.txt') {
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last_commit := os.read_file('last_commit.txt')?
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if last_commit.trim_space() == commit_hash.trim_space() {
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println('No new commits to benchmark. Commit $commit_hash has already been processed.')
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return
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}
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commit_hash = last_commit.trim_space()
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}
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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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/*
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// Do nothing if it's already been processed.
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if table.contains(commit_hash) {
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println('Commit $commit_hash has already been processed')
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return
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}
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*/
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last_commits := exec('git log --pretty=format:"%h" -n 50').split('\n')
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// Fetch all unprocessed commits (commits after the last processed commit)
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mut commits := []string{}
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println('!last_commit="$commit_hash"')
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for i, c in last_commits {
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if c == commit_hash {
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commits = last_commits[..i].reverse()
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break
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}
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}
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println(last_commits)
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println('Commits to benchmark:')
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println(commits)
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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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// 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 $vdir/cmd/v', 'v.c')
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diff2 := measure('$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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//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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</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) }
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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, 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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sw := time.new_stopwatch({})
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exec(cmd)
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return int(sw.elapsed().milliseconds())
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}
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