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Bug #51262 RecursiveDirectoryIterator sucks performance
Submitted: 2010-03-10 14:36 UTC Modified: 2017-10-24 07:25 UTC
Avg. Score:5.0 ± 0.0
Reproduced:1 of 1 (100.0%)
Same Version:0 (0.0%)
Same OS:1 (100.0%)
From: h dot reindl at thelounge dot net Assigned:
Status: Open Package: SPL related
PHP Version: 5.3.2 OS: win32 only
Private report: No CVE-ID: None
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From: h dot reindl at thelounge dot net
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 [2010-03-10 14:36 UTC] h dot reindl at thelounge dot net
On Linux it is really easy to read recursive folder-listings with SPL even if there are many files and folders, i need here between 1 and 3 seconds after cold start of the machine on my fedora-box

On Windows the same needs between 180 and 240 seconds and "process explorer" shows > 1 MB I/O the whole time, same script, same folders contents, same php-version

WHAT do you do on windows? 
Are you reading all the 30.000 files instead listing them only?

Test script:
$files    = array();
$folders  = array();
$spl_objects = new RecursiveIteratorIterator(new RecursiveDirectoryIterator($path), RecursiveIteratorIterator::CHILD_FIRST);
 foreach($spl_objects as $filename=>$spl_object)
   $filename = str_replace(DIRECTORY_SEPARATOR, '/', $filename);
  if(substr($filename, 0, 2) === './')
   $filename = substr($filename, 2);
   case false: $files[$filename] = $spl_object->getMTime(); break;
   case true:  $folders[] = $filename; break;
catch(UnexpectedValueException $e)
 error_log('Directory "' . $path . '" contained a directory we can not recurse into');
 return false;
$enumerate_list = array('files'=>$files, 'folders'=>$folders);

Expected result:
a normal performance

Actual result:
waiting minutes to get hughe folder-listings


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 [2010-03-10 22:09 UTC]
-Operating System: Windows +Operating System: win32 only
 [2011-11-16 13:54 UTC]
-Status: Open +Status: Assigned -Assigned To: +Assigned To: colder
 [2017-10-24 07:25 UTC]
-Status: Assigned +Status: Open -Assigned To: colder +Assigned To:
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