hphp/test/large_memory/repo_contention.php

   1 <?hh
   2
   3 function foobar($i) {
   4   usleep(500*1000);
   5 }
   6
   7 function main($num) {
   8   $cmd = file_get_contents("/proc/self/cmdline");
   9   $cmd = str_replace("\000", " ", $cmd);
  10   $start = microtime(true);
  11
  12   echo "Starting $num procs\n";
  13   for ($i = 0; $i < $num; $i++) {
  14     $handles[] = proc_open($cmd." $i", array(), $pipes);
  15   }
  16   while ($handles) {
  17     foreach ($handles as $i => $handle) {
  18       $status = proc_get_status($handle);
  19       if (!$status['running']) {
  20         proc_close($handle);
  21         unset($handles[$i]);
  22       }
  23     }
  24   }
  25   echo "Done $num procs\n";
  26   return microtime(true) - $start;
  27 }
  28
  29 if (count($argv) > 1) {
  30   foobar($argv[1]);
  31 } else {
  32   $x10 = main(10);
  33   $x200 = main(200);
  34   echo $x10 * 20 < $x200 ? "Failed since $x10 * 20 < $x200" : "Passed", "\n";
  35 }