Part 1: pprof Quick Start - Get Profiling in 10 Minutes

Learn how to use Go's built-in pprof profiling tool to identify performance bottlenecks in your applications. Covers CPU profiling to find hot functions, memory profiling to detect leaks and reduce allocations, and goroutine profiling to spot blocking issues. Includes practical examples of common performance problems like N+1 queries, unnecessary JSON marshaling, and string concatenation in loops, with concrete fixes that reduced response times from 2 seconds to 50ms.