There are lots of questions on ServerFault (2.3k as of this writing) about identifying bottlenecks. I just came across CPU overloaded but no proccess is using more than 1% when reviewing, and I'm not certain whether or not it's appropriate to flag questions like this as a duplicate of Can you help me with my capacity planning?.

I do see that there are two canonical questions on bottleneck identification, which leads me to believe that there is a distinction drawn between the two in this community. I guess I just feel like there should be some canonical Q/A on bottleneck identification, like there is for capacity planning, and don't see the value in having so many different questions and answers concerning bottleneck identification.