An app is running “slow” on Linux, how do you go about figuring out what could be wrong? Typical bottle-necks for a slow application are cpu, disk i/o, network, memory, or database. For instance if Apache is running slow it could be memory starved….
I am a Linux Site Reliability Engineering leader (SRE), with a focus on cloud platforms, virtualization, automation, and a wide range of other Unix infrastructure tools. You can reach me at email@example.com.