<p>What are the main differences between running multiple deployments (X,Y,Z) interconnecting using services and a single deployment/pod with multiple containers (X,Y,Z) running inside it? Specifically in terms of performance.</p>

<p><strong>Multi-container POD :</strong></p>
<p>You are running multiple containers inside a single POD. All can connect each other over the Localhost. All POD running multiple containers.</p>
<p><strong>Multiple Pods:</strong></p>
<p>Different containers running on different PODs. Each POD containing one or more container and running it.</p>
<p>Performance-wise there might be a minor difference but still without testing actual scenario can't confirm.</p>
<p>Multiple containers running in a single POD so they talk to each other on localhost.</p>
<p>While multiple PODs interconnecting to each other over Kubernetes Service or POD to POD communication in that case minor delays may occur.</p>
