How to create a memory profile and analyze memory usage using runtime.MemProfile()?

To create a memory profile and analyze memory usage using runtime.MemProfile(), you can follow these steps:

Step 1: Import the required packages

import (
	"os"
	"runtime"
	"runtime/pprof"
)

Step 2: Create a file to write the memory profile

file, _ := os.Create("mem_profile")

Step 3: Start profiling memory allocations

runtime.GC()
if err := pprof.WriteHeapProfile(file); err != nil {
    log.Fatal(err)
}

Step 4: Analyze the memory profile using runtime.MemProfile()

memProfile := &runtime.MemProfile{}
if err := pprof.Lookup("heap").WriteTo(memProfile, 0); err != nil {
    log.Fatal(err)
}

// Process the memory profile data
for _, mem := range memProfile.Go {
    fmt.Printf("Allocated objects: %d, Allocated space: %d\n", mem.AllocObjects, mem.AllocSpace)
}

Make sure to replace the file name "mem_profile" with the desired file path where you want to save the memory profile.

This code snippet creates a memory profile by using pprof.WriteHeapProfile() and then parses and analyzes the memory profile using runtime.MemProfile(). The MemProfile struct provides details about the memory allocations, such as the number of allocated objects and the allocated space.

Note: The code snippet assumes that you have imported the required packages and have handled any necessary error handling and logging.