The Journey of a Request to the Backend

<p>From the frontend through the kernel to the backend process<br>When we send a request to a backend most of us focus on the processing aspect of the request which is really just the last step.</p> <p>There is so much more happening before a request is ready to be processed, most of this step happens in the Kernel. I break this into 6 steps, each step can theoretically be executed by a dedicated thread or process. Pretty much all backends, web servers, proxies, frameworks and even databases have to do all these steps and they all do choose to do it differently.</p> <p><br></p> <p>Grab my backend performance course <a href="https://performance.husseinnasser.com">https://performance.husseinnasser.com</a></p> <p><br></p> <p>0:00 Intro</p> <p>3:50 What is a Request?</p> <p>10:14 Step 1 - Accept </p> <p>21:30 Step 2 - Read</p> <p>29:30 Step 3 - Decrypt</p> <p>34:00 Step 4 - Parse</p> <p>40:36 Step 5 - Decode</p> <p>43:14 Step 6 - Process</p> <p><br></p> <p><br></p> <p>Medium article</p> <p><a href="https://medium.com/@hnasr/the-journey-of-a-request-to-the-backend-c3de704de223">https://medium.com/@hnasr/the-journey-of-a-request-to-the-backend-c3de704de223</a></p> <p><br></p>