Performance Profiling

A practical guide to Linux performance profiling - perf stat/record internals, adding custom /proc counters, and GPU memory profiling tools
  1. Understanding Linux perf: stat and record
    What really happens in the kernel when you run perf stat or perf record.
  2. Adding a counter to the *proc* interface
    A practical guide to instrumenting the Linux kernel by adding custom counters to /proc/vmstat
  3. GPU Memory Profiling Tools (NVIDIA and Intel)
    A practical guide to observing GPU memory stats on NVIDIA and Intel GPUs (monitors, profilers, and attribution).