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ID Category Severity Reproducibility Date Submitted Last Update
0003297 [Quercus] major always 01-26-09 14:06 01-01-09 14:42
Reporter koreth View Status public  
Assigned To ferg
Priority normal Resolution fixed  
Status closed   Product Version 4.0.0
Summary 0003297: hash_hmac() is slow
Description <?php
$message = str_repeat('x', 1000);
$key = base64_decode("NMvhzq3jlze/4WlyuRXQ5w==");
$hash_key = base64_decode("CdMQm0q6JeUgalXRwQQZ1h/8WQA7fJh1OuY0xuZooxQ=");
$start = microtime(true);
for ($idx=0; $idx < 10000; $idx++) {
  $hash_val = hash_hmac('md5', $message, $hash_key, true);
}
print microtime(true) - $start;

This reports a run time of about 75ms under Zend PHP and about 610ms under Quercus in compiled mode (after repeated reloads to make sure the JVM has properly compiled everything.)
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- Notes
(0003786)
ferg
01-01-09 14:42

With the improved performance, Quercus is still slower (by 2x on my system). The time is mostly spent inside the crypto routines. This may be a case where Java is just slower than C for highly numerical calculations.
 

- Issue History
Date Modified Username Field Change
01-26-09 14:06 koreth New Issue
01-01-09 14:42 ferg Note Added: 0003786
01-01-09 14:42 ferg Assigned To  => ferg
01-01-09 14:42 ferg Status new => closed
01-01-09 14:42 ferg Resolution open => fixed
01-01-09 14:42 ferg Fixed in Version  => 4.0.0


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