xyzshop/test/coroutine/behavior/tick.php

<?php
declare(ticks=10);

$max_msec = 10;
Swoole\Coroutine::set([
    'max_exec_msec' => $max_msec,
]);

$s = microtime(1);
echo "start\n";
$flag = 1;
go(function () use (&$flag, $max_msec, $s){
    echo "coro 1 start to loop for $max_msec msec\n";
    $n = 10000000;
    $i = 0;
    while($n--) {
        $i ++;
    }
    echo "coro 1 can exit\n";
    $t = microtime(1);
    $u = $t-$s;
    echo "coro 1 use time ".(($t-$s) * 1000)." ms\n";
});

$t = microtime(1);
$u = $t-$s;
echo "shedule use time ".($u * 1000)." ms\n";
go(function () use (&$flag){
    echo "coro 2 set flag = false\n";
    $flag = false;
});
echo "end\n";