From: kriscraig Operating system: Windows PHP version: 5.3.5 Package: MySQL related Bug Type: Bug Bug description:Localhost resolves much more slowly than 127.0.0.1 on mysql_connect()
Description: ------------ I'm told that a number of people have been reporting this issue. The reports I'm hearing state that people are finding it to be about 3-4 times slower when done by hostname. My guess would be this is another IPv6-related issue. It's also worth noting that I have not yet been able to independently verify these numbers, though I am working on doing so and will post the data if/when I have it. It was requested that I post this bug so that we have a record of it. If you've experienced any hostname vs. IP performance issues (good or bad), please post a comment here so we have the reports in one central place. Thanks! Test script: --------------- <?php if ( !isset( $_GET["host"] ) ) { die( "You must specify ?host= in the URL string. Example: mysql_connect_test.php?host=localhost" ); } $start = microtime( TRUE ); $link = mysql_connect( $_GET["host"], "root", "(your-password-here)" ) or die( "Function mysql_connect() failed." ); $end = microtime( TRUE ); $duration = $end - $start; print "<b>Execution Time:</b> $duration sec<br />\r\n"; -- Edit bug report at http://bugs.php.net/bug.php?id=54212&edit=1 -- Try a snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=54212&r=trysnapshot52 Try a snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=54212&r=trysnapshot53 Try a snapshot (trunk): http://bugs.php.net/fix.php?id=54212&r=trysnapshottrunk Fixed in SVN: http://bugs.php.net/fix.php?id=54212&r=fixed Fixed in SVN and need be documented: http://bugs.php.net/fix.php?id=54212&r=needdocs Fixed in release: http://bugs.php.net/fix.php?id=54212&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=54212&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=54212&r=needscript Try newer version: http://bugs.php.net/fix.php?id=54212&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=54212&r=support Expected behavior: http://bugs.php.net/fix.php?id=54212&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=54212&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=54212&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=54212&r=globals PHP 4 support discontinued: http://bugs.php.net/fix.php?id=54212&r=php4 Daylight Savings: http://bugs.php.net/fix.php?id=54212&r=dst IIS Stability: http://bugs.php.net/fix.php?id=54212&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=54212&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=54212&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=54212&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=54212&r=mysqlcfg