# I Want to Know if Servers Can Handle Pressure

> Use the Response Times Versus Load graph to uncover hidden scaling problems and spot servers that slow down under heavy request volume.

Source: https://docs.capaone.com/performanceguard/i-want-to-know/i-want-to-know-if-servers-can-handle-pressure/  
Product: PerformanceGuard — a separate CapaSystems product; do not apply this page to any other.

The [Response Times Versus Load](/performanceguard/i-want-to-know/i-want-to-know-if-servers-can-handle-pressure/response-times-versus-load/) graph (**ANALYZE > Graphs > Statistics > Response Time Versus Load**) can help you uncover otherwise hidden scaling problems.

If response times increase to a non-acceptable level when the number of requests per second increases, it's very likely the result of an overloaded server getting more requests than it can handle.

![](/attachments/performanceguard/aca26488-55cc-4e77-960e-f11a06624d35.png)  
In the example (click thumbnail to view image in full size), the gray ![](/attachments/performanceguard/90f8836e-8eea-4fb0-b139-7d5e568a7620.png) server responds quickly no matter how many requests it gets. However, the response times (horizontal axis) of the purple ![](/attachments/performanceguard/c7b5911d-52a5-44ae-b0be-484a0793dca1.png) server dramatically increase when the server gets many requests (vertical axis)—a typical sign of an overloaded server that could benefit from a hardware upgrade in order to perform better at busy times.