Thank you for this bug report. To properly diagnose the problem, we
need a short but complete example script to be able to reproduce
this bug ourselves. 

A proper reproducing script starts with <?php and ends with ?>,
is max. 10-20 lines long and does not require any external 
resources such as databases, etc. If the script requires a 
database to demonstrate the issue, please make sure it creates 
all necessary tables, stored procedures etc.

Please avoid embedding huge scripts into the report.

<?

$client = new SoapClient($wsdl_location, $params);

$date_time = date("Y-m-d H:i:s");		
			
$ws_params = array("valAddressMsg" => "aaa");		
					
$this->result = $this->handle->__soapCall("ValA", $ws_params);
			
if ($debug)	
	$this->displayMessageInfo();
			
$this->handleFault($this->result);

?>

When the code gets to "$this->handle->__soapCall..." we recognize the fact that when PHP is waiting for a soap response the CPU is blocked. However this is not a good behavior as of we need the CPU to do other things also.

Could you plese post strace of process or/and call-trace of PHP during it eats CPU.

How do we do traces?

however I was able to isolate the problem. It's SSL that is causing CPU spikes. I ran a soap location with HTTP://, then the CPU would "idle" while it's waiting for a response, however using HTTPS:// the CPU really goes nuts!

Is this a problem in the core of PHP itself?

I am not able to reproduce this.

I created a simple client that accesses server over HTTPS:

<?php
  $client = new SoapClient(NULL,array(
    "location"=> "https://tpl/~dmitry/soap/examples/server4.php",
    "uri"     => "test://"));
  echo $client->getQuote("ibm");
?>

and server that sleeps for 15 seconds:
<?php
$quotes = array(
  "ibm" => 98.42
);  

function getQuote($symbol) {
  global $quotes;
  sleep(15);
  return $quotes[$symbol];
}

//ob_start("ob_gzhandler");
$server = new SoapServer("stockquote1.wsdl");
$server->addFunction("getQuote");
$server->handle();
?>

and I don't see any CPU load:
[dmitry@tpl CGI-DEBUG]$ time sapi/cli/php /home/dmitry/public_html/soap/examples/client8.php
98.42
real    0m15.105s
user    0m0.006s
sys     0m0.033s

I also run the same client on Windows looking into "perfmon" and CPU load was about 0% during waiting.

Please provide a COMPLETE reproducable case (client that access external SOAP server, or local client and srver), if you like me to fix the behavior.

Hi dmitry, were you using apache or IIS under windows?

We are using IIS. Perhaps it is the source of the problem...

I will be doing more testing on this later this week. Please let me know.

Thank you.

On Windows I just called CLI PHP that accessed SOAP server on Linux/Apache.

No feedback was provided for this bug for over a week, so it is
being suspended automatically. If you are able to provide the
information that was originally requested, please do so and change
the status of the bug back to "Open".

I don't have an environment that I can provide a procedure to duplicate this issue, I'm seeing this same problem currently under php 5.3.28 connecting to an IIS server from an OSX dev box.

The SOAP server is a bit of a mess and can take up to 130 seconds to respond to queries - in the mean time the process pegs the CPU at 100% utilization. 

I tried to duplicate this setup with a dummy soap service on an ubuntu box, but I didn't see the same results..