Bug #51314 [NEW]: curl_multi_init example uses to many cpu cycles

From: Operating system: PHP version: Irrelevant Package: Documentation problem Bug Type: Bug Bug description:curl_multi_init example uses to many cpu cycles Description: ------------ At the curl_multi_init there is an example that says: $running=null; //execute the handles do { curl_multi_exec($mh,$running); } while ($running > 0); This causes a *very* tight loop while curl requests the files, as a result an almost 100% cpu usage. My suggestion is to put a usleep() with a 10ms delay inside the loop: $running=null; //execute the handles do { usleep(10000); curl_multi_exec($mh,$running); } while ($running > 0); -- Edit bug report at http://bugs.php.net/bug.php?id=51314&edit=1 -- Try a snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=51314&r=trysnapshot52 Try a snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=51314&r=trysnapshot53 Try a snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=51314&r=trysnapshot60 Fixed in SVN: http://bugs.php.net/fix.php?id=51314&r=fixed Fixed in SVN and need be documented: http://bugs.php.net/fix.php?id=51314&r=needdocs Fixed in release: http://bugs.php.net/fix.php?id=51314&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=51314&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=51314&r=needscript Try newer version: http://bugs.php.net/fix.php?id=51314&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=51314&r=support Expected behavior: http://bugs.php.net/fix.php?id=51314&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=51314&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=51314&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=51314&r=globals PHP 4 support discontinued: http://bugs.php.net/fix.php?id=51314&r=php4 Daylight Savings: http://bugs.php.net/fix.php?id=51314&r=dst IIS Stability: http://bugs.php.net/fix.php?id=51314&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=51314&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=51314&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=51314&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=51314&r=mysqlcfg