Memory profiling

Memory profiling helps you analyze how your Go program allocates and uses memory. It’s critical in systems programming. where you frequently deal with constrained resources and performance-sensitive operations. Here are some key questions it helps answer:

• Memory leaks: Are you unintentionally holding on to memory that’s no longer needed?
• Allocation hotspots: Which functions or code blocks are responsible for most allocations?
• Memory usage patterns: How does memory use change over time, especially under different load conditions?
• Object sizes: How can you understand the memory footprint of key data structures?

Let’s learn how to set up memory profiling for our monitoring program based on the following snippet:

f, err := os.Create("memprofile.out")
if err != nil {
    // Handle error
}
defer f.Close()
runtime.GC()
pprof.WriteHeapProfile(f)

Let’s understand what’s happening...