I have an application that accepts requests and process them.

I'm planning to add to this script execution a curl to forward the call to another service (for service migration and testing purposes)

I want to be sure that this request forwarding via curl won't slow down application performance or server in general.

Some pseudo code:

```
 //Step 1: existing code

 //handle the request
 $req = new requestHandler($_REQUEST);
 //process the request
 $req->process();

 //Step 2 (TODO): add request forwarding here (unique request do not need to perform multi curls)
 $forward = new requestForwarding($_REQUEST);
 $forward->fire();

 //step3 (don't want this to be delayed by step 2)
 $req->printAnswer();

```

What can I do at step 2 to not affect or minimise the general impact of the request forward?

Am I worrying for nothing and I can implement it with a simple curl?
Or should I take some precautions?

Thanks