diff options
Diffstat (limited to 'v_windows/v/old/cmd/tools/fast/fast.v')
| -rw-r--r-- | v_windows/v/old/cmd/tools/fast/fast.v | 178 |
1 files changed, 178 insertions, 0 deletions
diff --git a/v_windows/v/old/cmd/tools/fast/fast.v b/v_windows/v/old/cmd/tools/fast/fast.v new file mode 100644 index 0000000..0b9f05a --- /dev/null +++ b/v_windows/v/old/cmd/tools/fast/fast.v @@ -0,0 +1,178 @@ +// Copyright (c) 2019-2021 Alexander Medvednikov. All rights reserved. +// Use of this source code is governed by an MIT license +// that can be found in the LICENSE file. +import os +import time + +// TODO -usecache +const voptions = ' -skip-unused -show-timings -stats ' + +const exe = os.executable() + +const fast_dir = os.dir(exe) + +const vdir = @VEXEROOT + +fn main() { + dump(fast_dir) + dump(vdir) + os.chdir(fast_dir) + if !os.exists('$vdir/v') && !os.is_dir('$vdir/vlib') { + println('fast.html generator needs to be located in `v/cmd/tools/fast`') + } + println('fast.html generator\n') + println('Fetching updates...') + ret := os.system('$vdir/v up') + if ret != 0 { + println('failed to update V') + return + } + // Fetch the last commit's hash + commit := exec('git rev-parse HEAD')[..8] + if !os.exists('table.html') { + os.create('table.html') ? + } + mut table := os.read_file('table.html') ? + if table.contains('>$commit<') { + println('nothing to benchmark') + exit(1) + return + } + // for i, commit in commits { + message := exec('git log --pretty=format:"%s" -n1 $commit') + // println('\n${i + 1}/$commits.len Benchmarking commit $commit "$message"') + println('\nBenchmarking commit $commit "$message"') + // Build an optimized V + // println('Checking out ${commit}...') + // exec('git checkout $commit') + println(' Building vprod...') + os.chdir(vdir) + exec('./v -o vprod -prod -prealloc cmd/v') + // println('cur vdir="$vdir"') + // exec('v -o vprod cmd/v') // for faster debugging + // cache vlib modules + exec('$vdir/v wipe-cache') + exec('$vdir/v -o v2 -prod cmd/v') + // measure + diff1 := measure('$vdir/vprod $voptions -o v.c cmd/v', 'v.c') + mut tcc_path := 'tcc' + $if freebsd { + tcc_path = '/usr/local/bin/tcc' + } + diff2 := measure('$vdir/vprod $voptions -cc $tcc_path -o v2 cmd/v', 'v2') + diff3 := 0 // measure('$vdir/vprod -native $vdir/cmd/tools/1mil.v', 'native 1mil') + diff4 := measure('$vdir/vprod -usecache $voptions -cc clang examples/hello_world.v', + 'hello.v') + vc_size := os.file_size('v.c') / 1000 + // scan/parse/check/cgen + scan, parse, check, cgen, vlines := measure_steps(vdir) + // println('Building V took ${diff}ms') + commit_date := exec('git log -n1 --pretty="format:%at" $commit') + date := time.unix(commit_date.int()) + // + os.chdir(fast_dir) + mut out := os.create('table.html') ? + // Place the new row on top + html_message := message.replace_each(['<', '<', '>', '>']) + table = + '<tr> + <td>$date.format()</td> + <td><a target=_blank href="https://github.com/vlang/v/commit/$commit">$commit</a></td> + <td>$html_message</td> + <td>${diff1}ms</td> + <td>${diff2}ms</td> + <td>${diff3}ms</td> + <td>${diff4}ms</td> + <td>$vc_size KB</td> + <td>${parse}ms</td> + <td>${check}ms</td> + <td>${cgen}ms</td> + <td>${scan}ms</td> + <td>$vlines</td> + <td>${int(f64(vlines) / f64(diff1) * 1000.0)}</td> + </tr>\n' + + table.trim_space() + out.writeln(table) ? + out.close() + // Regenerate index.html + header := os.read_file('header.html') ? + footer := os.read_file('footer.html') ? + mut res := os.create('index.html') ? + res.writeln(header) ? + res.writeln(table) ? + res.writeln(footer) ? + res.close() + //} + // exec('git checkout master') + // os.write_file('last_commit.txt', commits[commits.len - 1]) ? +} + +fn exec(s string) string { + e := os.execute_or_exit(s) + return e.output.trim_right('\r\n') +} + +// returns milliseconds +fn measure(cmd string, description string) int { + println(' Measuring $description') + println(' Warming up...') + println(cmd) + for _ in 0 .. 3 { + exec(cmd) + } + println(' Building...') + mut runs := []int{} + for r in 0 .. 5 { + println(' Sample ${r + 1}/5') + sw := time.new_stopwatch() + exec(cmd) + runs << int(sw.elapsed().milliseconds()) + } + // discard lowest and highest time + runs.sort() + runs = runs[1..4] + mut sum := 0 + for run in runs { + sum += run + } + return int(sum / 3) +} + +fn measure_steps(vdir string) (int, int, int, int, int) { + resp := os.execute_or_exit('$vdir/vprod $voptions -o v.c cmd/v') + + mut scan, mut parse, mut check, mut cgen, mut vlines := 0, 0, 0, 0, 0 + lines := resp.output.split_into_lines() + if lines.len == 3 { + parse = lines[0].before('.').int() + check = lines[1].before('.').int() + cgen = lines[2].before('.').int() + } else { + ms_lines := lines.map(it.split(' ms ')) + for line in ms_lines { + if line.len == 2 { + if line[1] == 'SCAN' { + scan = line[0].int() + } + if line[1] == 'PARSE' { + parse = line[0].int() + } + if line[1] == 'CHECK' { + check = line[0].int() + } + if line[1] == 'C GEN' { + cgen = line[0].int() + } + } else { + // Fetch number of V lines + if line[0].contains('V') && line[0].contains('source') && line[0].contains('size') { + start := line[0].index(':') or { 0 } + end := line[0].index('lines,') or { 0 } + s := line[0][start + 1..end] + vlines = s.trim_space().int() + } + } + } + } + return scan, parse, check, cgen, vlines +} |