What happens if network overhead exceeds 5% of available CPU?

When network overhead exceeds 5% of the available CPU, throttling occurs as a response to manage performance and resource utilization. Throttling is a mechanism that reduces the rate at which data is transmitted, thereby preventing the network from overwhelming the available processing capacity.

By implementing throttling, the system can ensure that network traffic does not consume too much of the CPU's resources, which could otherwise lead to degraded performance or instability. This proactive measure allows the system to maintain a balance between handling network requests and ensuring that the available CPU resources are not maxed out.

Other options, such as allocating new resources or dropping the network connection, are generally more drastic responses that are not typically triggered solely based on network overhead. If new resources were added, it would be aimed at improving performance rather than directly addressing the issue of network overhead. Dropping the network connection would further disrupt service without addressing the underlying performance balance needed to handle the current demands effectively. Additionally, the option suggesting no action would not align with the operational practices intended to maintain reliable system performance as soon as the defined threshold is breached.