How to determine the size of a memory page in a Unix operating system?

In Unix-like systems, the size of a memory page can be determined using the sysconf system call with the parameter _SC_PAGESIZE or _SC_PAGE_SIZE.

In Go, this can be done as follows:

package main

import (
    "fmt"
    "syscall"
)

func main() {
    pageSize := syscall.Getpagesize()
    fmt.Printf("Memory page size: %d bytes\n", pageSize)
}

The syscall.Getpagesize() function returns the size of a page in bytes, usually 4096 bytes, but it may vary depending on the architecture and OS.