inancgumus

package main

import (
	"fmt"
	"time"
)

func main() {
	// Sleep func let us stop the progress for a duration
	//

inancgumus

package main

import "fmt"

func main() {
    // has default type of float
    const Tau = 3.14 * 2

    // implicitly converted to a float64, 
    // because of the assignment to a "runtime" variable 

inancgumus

package main

import "fmt"

func main() {
	// ------------------------------------------------
	// LOSS OF PRECISION
	// ------------------------------------------------
    
	// const Pi lives in the ideal numbers universe which has at least 256-bit high-precision

inancgumus

package main

import (
	"fmt"
)

func main() {
	// if it was: 14000000000 it'll overflow int on 32-bit machines
	// using the scientific notation 14e9, elects the variable's type as
	// a float64. because, the scientific-notation is defined for floating nums

inancgumus

package main

import (
	"fmt"
)

func main() {
 	// still not a good way to define a variable like this. we will see it.
	var ageOfUniverse uint64 = 14e9 // 14e9 = 14 and 9 zeros which is 14 billions
  

inancgumus

package main

import (
	"fmt"
)

// on 32-bit machines, it'll overflow
// on 64-bit machines, everything is fine
// use: uint64 instead.
func main() {

inancgumus

package main

import (
	"fmt"
	"unsafe"
)

func main() {
	var ageOfUniverse int
	reservedBytes := unsafe.Sizeof(ageOfUniverse)

inancgumus

Moved to git-repository: https://github.com/denji/awesome-http-benchmark

Tools

Located in alphabetical order (not prefer)

• ab – slow and single threaded, written in C
• apib – most of the features of ApacheBench (ab), also designed as a more modern replacement, written in C
• baloo – Expressive end-to-end HTTP API testing made easy, written in Go (golang)
• bombardier – Fast crossplatform HTTP benchmarking tool, written in Go (golang)

inancgumus

Mini Go Web Stack

Description

This represents a proof of concept, minimal web stack. I used http://nicolasmerouze.com/build-web-framework-golang/ series of articles as a starting point and the goal was to keep the stack as minimal as possible while still being useful for practical purposes. And of course, use the standard library as much as possible and only integrate components compatible with it.

inancgumus

Golang Binary Versioning Trick

To use, place the code in version_trick.go in your project. Don't forget to change the namespace to match yours to the actual name of your package.

In addition to version_trick.go, there's a makefile-snippet, that includes the secret sauce for making this trick work. Be sure to change the package name there as well.

Enjoy!

P.S. Special thanks to @meatballhat by way of @syscomet for showing me this trick!