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Benchmarking mean (#11085)

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* Use 50 runs and calculate mean

* Don't validate timestamps

* Don't profile PHP startup and shutdown in cgi with valgrind
This commit is contained in:
Ilija Tovilo
2023-04-15 23:14:20 +02:00
committed by GitHub
parent 35647aaec6
commit 24cc40207d
3 changed files with 23 additions and 6 deletions
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11
benchmark/benchmark.php
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@@ -55,7 +55,7 @@ function runSymfonyDemo(bool $jit): array {
cloneRepo($dir, 'https://github.com/php/benchmarking-symfony-demo-2.2.3.git');
runPhpCommand([$dir . '/bin/console', 'cache:clear']);
runPhpCommand([$dir . '/bin/console', 'cache:warmup']);
return runValgrindPhpCgiCommand([$dir . '/public/index.php'], cwd: $dir, jit: $jit, warmup: 50);
return runValgrindPhpCgiCommand([$dir . '/public/index.php'], cwd: $dir, jit: $jit, warmup: 50, repeat: 50);
}
function runWordpress(bool $jit): array {
@@ -78,7 +78,7 @@ function runWordpress(bool $jit): array {
// Warmup
runPhpCommand([$dir . '/index.php'], $dir);
return runValgrindPhpCgiCommand([$dir . '/index.php'], cwd: $dir, jit: $jit, warmup: 50);
return runValgrindPhpCgiCommand([$dir . '/index.php'], cwd: $dir, jit: $jit, warmup: 50, repeat: 50);
}
function runPhpCommand(array $args, ?string $cwd = null): ProcessResult {
@@ -90,6 +90,7 @@ function runValgrindPhpCgiCommand(
?string $cwd = null,
bool $jit = false,
int $warmup = 0,
int $repeat = 1,
): array {
global $phpCgi;
$process = runCommand([
@@ -99,13 +100,17 @@ function runValgrindPhpCgiCommand(
'--callgrind-out-file=/dev/null',
'--',
$phpCgi,
'-T' . ($warmup ? $warmup . ',' : '') . '1',
'-T' . ($warmup ? $warmup . ',' : '') . $repeat,
'-d max_execution_time=0',
'-d opcache.enable=1',
'-d opcache.jit_buffer_size=' . ($jit ? '128M' : '0'),
'-d opcache.validate_timestamps=0',
...$args,
]);
$instructions = extractInstructionsFromValgrindOutput($process->stderr);
if ($repeat > 1) {
$instructions = gmp_strval(gmp_div_q($instructions, $repeat));
}
return ['instructions' => $instructions];
}