ismiyati

Edit — February 2019

This gist had a far larger impact than I imagined it would, and apparently people are still finding it, so a quick update:

TC39 is currently moving forward with a slightly different version of TLA, referred to as 'variant B', in which a module with TLA doesn't block sibling execution. This vastly reduces the danger of parallelizable work happening in serial and thereby delaying startup, which was the concern that motivated me to write this gist
In the wild, we're seeing (async main(){...}()) as a substitute for TLA. This completely eliminates the blocking problem (yay!) but it's less powerful, and harder to statically analyse (boo). In other words the lack of TLA is causing real problems
Therefore, a version of TLA that solves the original issue is a valuable addition to the language, and I'm in full support of the current proposal, which you can read here.

I'll leave the rest of this document unedited, for archaeological

Benchmarking Nginx with Go

There are a lot of ways to serve a Go HTTP application. The best choices depend on each use case. Currently nginx looks to be the standard web server for every new project even though there are other great web servers as well. However, how much is the overhead of serving a Go application behind an nginx server? Do we need some nginx features (vhosts, load balancing, cache, etc) or can you serve directly from Go? If you need nginx, what is the fastest connection mechanism? This are the kind of questions I'm intended to answer here. The purpose of this benchmark is not to tell that Go is faster or slower than nginx. That would be stupid.

So, these are the different settings we are going to compare:

Go HTTP standalone (as the control group)
Nginx proxy to Go HTTP
Nginx fastcgi to Go TCP FastCGI
Nginx fastcgi to Go Unix Socket FastCGI

	package main

	import (
	"fmt"
	"net/http"
	)

	type Middleware func(http.HandlerFunc) http.HandlerFunc

	func MiddlewareStack(mws ...Middleware) (handlerFunc http.HandlerFunc) {

	package main

	import (
	"context"
	"fmt"

	"github.com/jackc/pgconn"
	)

	func main() {

	package main

	import (
	"domain.tld/username/pkg1"
	)

	func main() {
	pkg1.Println("test")
	}

	package main

	import (
	"fmt"
	"reflect"
	"unsafe"
	)

	var data = []byte(`foobar`)

	package main

	import (
	"crypto/rand"
	"flag"
	"log"
	mrand "math/rand"
	"net"
	"os"
	"os/signal"

	package main

	import (
	"encoding/json"
	"fmt"
	)

	type MapTree map[string]MapTree

	func mergeMap(m0, m1 MapTree) {

	package main

	import (
	"fmt"
	"time"
	)
	func main() {
	fmt.Println("unbuffered channel:")
	c1 := make(chan int) //unbuffered channel
	go func(c chan int) {