Sampling v. tracing

Sampling v. tracing

Perf is probably the most widely used general purpose performance debugging tool on Linux. There ...概要を表示 Perf is probably the most widely used general purpose performance debugging tool on Linux. There are multiple contenders for the #2 spot, and, like perf, they're sampling profilers. Sampling profilers are great. They tend to be easy-to-use and low-overhead compared to most alternatives. However, there are large classes of performance problems sampling profilers can't debug effectively, and those p