App Engine for Golang Performance

Let's GAE/Go!

30 November 2014

Profile

TOPGATE, Inc.

@sinmetal

+ShingoIshimura

Agenda

• What's App Engine?
• What's Managed VMs?
• App Engine for Golang vs App Engine for Java
• Managed VMs for Golang vs Managed VMs for Java

What's App Engine?

What's App Engine?

• Auto Scaling
• Have all services necessary for the WebApplication
• Most with the standard of the net/http

package goappengine

import (
    "fmt"
    "net/http"
)

func init() {
    http.HandleFunc("/", handler)
}

func handler(w http.ResponseWriter, r *http.Request) {
    fmt.Fprintf(w, "Hello, App Engine for Go")
}

Bad App Engine

• Go Version Up Slow (now 1.2)
• GOMAXPROCS = 1
• You are in the cage of AppEngine
• Eternal Beta (; _ ;)

What's Managed VMs?

What's Managed VMs?

• Container of App Engine on the Compute Engine
• VM management of Google
• Escape from cage of App Engine
• GOMAXPROCS = X

Bad Managed VMs

• deploy is verrrrrrrrrrrrrrrrrrrrry slow
• The min value of the auto-scaling is 1
• Beta

Performance

Strategy

Send the time it took to fetch in bigquery
Compute Engine Attack from 3 Region

App Engine for Golang vs App Engine for Java

App Engine for Golang

max instances 20
request is more than 1000 / s and Performance decrease ?

App Engine for Java

max instances 38

MVMs for Golang vs MVMs for Java

Managed VMs for Golang

max instances 1

Managed VMs for Java

max instances 5
Bad Response Status All 503

Thank you