implementation for fastcgi_finish_request in Magento

fastcgi_finish_request.patch

diff --git a/app/code/core/Mage/Core/Controller/Varien/Front.php b/app/code/core/Mage/Core/Controller/Varien/Front.php
index 75d0e17..890ba9d 100755
--- a/app/code/core/Mage/Core/Controller/Varien/Front.php
+++ b/app/code/core/Mage/Core/Controller/Varien/Front.php
@@ -182,6 +182,12 @@ class Mage_Core_Controller_Varien_Front extends Varien_Object
         Mage::dispatchEvent('controller_front_send_response_before', array('front'=>$this));
         Varien_Profiler::start('mage::app::dispatch::send_response');
         $this->getResponse()->sendResponse();
+        //This function flushes all response data to the client and finishes the request.
+        // This allows for time consuming tasks to be performed without leaving the connection
+        // to the client open.
+        if(php_sapi_name() == 'fpm-fcgi' && true === function_exists('fastcgi_finish_request')){
+            fastcgi_finish_request();
+        }
         Varien_Profiler::stop('mage::app::dispatch::send_response');
         Mage::dispatchEvent('controller_front_send_response_after', array('front'=>$this));
         return $this;
fastcgi_finish_request.patch (END)

http://php.net/manual/de/function.fastcgi-finish-request.php