Engineers are like servers. Sometimes they run out of RAM and start acting up…

In addition, I noticed that there is a lack of memory on the server that can also cause high CPU usage:

# free -m
            total      used      free    shared    buffers    cached
Mem:          7987      7798        189        14        56      6848
-/+ buffers/cache:        892      7094
Swap:        4606      2162      2444

…or they simply forget about the cache.

Type: Ticket handling
Score: Bad
Reason: Lack of attention to man-pages