I realized that sometimes one of our servers monitored by Munin had a strange graphic of "Interrupts and context switches".
The server have a Xeon 5560 (8 cores) with 8gb of RAM.
At rush hour, the load average does not exceed 5 and 20% CPU usage.
Yet at the same time we record a very high level of Interrupts (the max : 100k). Munin seems at this point stop drawing the graph.
Is this a real problem of achieving the 100k?
What happens when this happens?
This can impact the performance of applications running on that server?
Thanks for your help !