From fc9401f04a3aca5abb22f87ebc210de8afe11d32 Mon Sep 17 00:00:00 2001
From: marvin-borner@live.com
Date: Tue, 10 Apr 2018 21:50:16 +0200
Subject: Initial Commit

---
 .../stream/examples/91-benchmark-throughput.php    | 62 ++++++++++++++++++++++
 1 file changed, 62 insertions(+)
 create mode 100644 assets/php/vendor/react/stream/examples/91-benchmark-throughput.php

(limited to 'assets/php/vendor/react/stream/examples/91-benchmark-throughput.php')

diff --git a/assets/php/vendor/react/stream/examples/91-benchmark-throughput.php b/assets/php/vendor/react/stream/examples/91-benchmark-throughput.php
new file mode 100644
index 0000000..ecf695c
--- /dev/null
+++ b/assets/php/vendor/react/stream/examples/91-benchmark-throughput.php
@@ -0,0 +1,62 @@
+<?php
+
+// Benchmark to measure throughput performance piping an input stream to an output stream.
+// This allows you to get an idea of how fast stream processing with PHP can be
+// and also to play around with differnt types of input and output streams.
+//
+// This example accepts a number of parameters to control the timeout (-t 1),
+// the input file (-i /dev/zero) and the output file (-o /dev/null).
+//
+// $ php examples/91-benchmark-throughput.php
+// $ php examples/91-benchmark-throughput.php -t 10 -o zero.bin
+// $ php examples/91-benchmark-throughput.php -t 60 -i zero.bin
+
+require __DIR__ . '/../vendor/autoload.php';
+
+if (DIRECTORY_SEPARATOR === '\\') {
+    fwrite(STDERR, 'Non-blocking console I/O not supported on Microsoft Windows' . PHP_EOL);
+    exit(1);
+}
+
+$args = getopt('i:o:t:');
+$if = isset($args['i']) ? $args['i'] : '/dev/zero';
+$of = isset($args['o']) ? $args['o'] : '/dev/null';
+$t  = isset($args['t']) ? $args['t'] : 1;
+
+// passing file descriptors requires mapping paths (https://bugs.php.net/bug.php?id=53465)
+$if = str_replace('/dev/fd/', 'php://fd/', $if);
+$of = str_replace('/dev/fd/', 'php://fd/', $of);
+
+$loop = new React\EventLoop\StreamSelectLoop();
+
+// setup information stream
+$info = new React\Stream\WritableResourceStream(STDERR, $loop);
+if (extension_loaded('xdebug')) {
+    $info->write('NOTICE: The "xdebug" extension is loaded, this has a major impact on performance.' . PHP_EOL);
+}
+$info->write('piping from ' . $if . ' to ' . $of . ' (for max ' . $t . ' second(s)) ...'. PHP_EOL);
+
+// setup input and output streams and pipe inbetween
+$fh = fopen($if, 'r');
+$in = new React\Stream\ReadableResourceStream($fh, $loop);
+$out = new React\Stream\WritableResourceStream(fopen($of, 'w'), $loop);
+$in->pipe($out);
+
+// stop input stream in $t seconds
+$start = microtime(true);
+$timeout = $loop->addTimer($t, function () use ($in, &$bytes) {
+    $in->close();
+});
+
+// print stream position once stream closes
+$in->on('close', function () use ($fh, $start, $loop, $timeout, $info) {
+    $t = microtime(true) - $start;
+    $loop->cancelTimer($timeout);
+
+    $bytes = ftell($fh);
+
+    $info->write('read ' . $bytes . ' byte(s) in ' . round($t, 3) . ' second(s) => ' . round($bytes / 1024 / 1024 / $t, 1) . ' MiB/s' . PHP_EOL);
+    $info->write('peak memory usage of ' . round(memory_get_peak_usage(true) / 1024 / 1024, 1) . ' MiB' . PHP_EOL);
+});
+
+$loop->run();
-- 
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