IBM Cloud University: Java, Node.js and Swift

Chris Bailey @Chris__Bailey STSM, Runtime Technologies

Java, Node.js and Swift: Which, When and Why

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GATEWAY

PUBLIC NETWORK CLOUD NETWORK

Client Devices Application Tier Database Tier

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Java

JavaScript

9 1/17/17Redmonk Programming Languages Rankings

http://redmonk.com/sogrady/category/programming-languages/


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Java

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Java

JavaScript

Swi5




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Runtime Language

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Scripting LanguageRuntime Language

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Scripting Language Modern Native LanguageRuntime Language

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Type Safe Type Safe, with InferenceDynamically Typed


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Pre-Compiled and JIT Compiled JIT Compiled Pre-Compiled

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Garbage Collected


Garbage Collected Reference Counted

JIT Compiled Pre-CompiledPre-Compiled and JIT Compiled

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Threaded Multi-CPU

Garbage Collected


Garbage Collected Reference Counted

Async Single CPU Async Multi-CPU

JIT Compiled Pre-CompiledPre-Compiled and JIT Compiled

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Type Safety

Swift @ IBM

func add(_ a: Int, to b: Int) -> Void { print(a + b) }

Swift Node.js

Swift @ IBM

var add = function (a, b) { console.log(a + b); }


Swift Node.js

Swift @ IBM


var a = 5; var b = 3;


let a = 5 let b = 3

Swift Node.js

Swift @ IBM


var a = 5; var b = 3;

add(a, b);


let a = 5 let b = 3

add(a, to: b)

Swift Node.js

Swift @ IBM


var a = 5; var b = 3;

add(a, b);


let a = 5 let b = 3

add(a, to: b)

> swiftc main.swift

Swift Node.js

Swift @ IBM


var a = 5; var b = 3;

add(a, b);

> node app.js


let a = 5 let b = 3

add(a, to: b)

> swiftc main.swift

> main

Swift Node.js

Swift @ IBM


var a = 5; var b = 3;

add(a, b);

> node app.js 8


let a = 5 let b = 3

add(a, to: b)

> swiftc main.swift

> main 8

Swift Node.js

Swift @ IBM


var a = '5'; var b = 3;

add(a, b);


let a = ”5” let b = 3

add(a, to: b)

Swift Node.js

Swift @ IBM


var a = '5'; var b = 3;

add(a, b);


let a = ”5” let b = 3

add(a, to: b)

> swiftc main.swift

Swift Node.js

Swift @ IBM


var a = '5'; var b = 3;

add(a, b);


let a = ”5” let b = 3

add(a, to: b)

> swiftc main.swift

> Error line 6: Cannot convert value of type ‘String’ into argument of type ‘Int’

Swift Node.js

Swift @ IBM


var a = '5'; var b = 3;

add(a, b);

> node app.js

> 53


let a = ”5” let b = 3

add(a, to: b)

> swiftc main.swift > Error line 6: Cannot convert value of type ‘String’ into argument of type ‘Int’

Swift Node.js

34

Performance

Runtime cost of dynamic typing

func add(_ a: Int, to b: Int) -> Int { return(a + b) }


func add(_ a: Int, to b: Int) -> Int { return(a + b) }

addi


var add = function (a, b) { return(a + b); }

Check type of A



Check type of A

String


Check type of A

StringCheck type of B


Check type of A

StringConcatenate Check type of B

String


Check type of A

String

Number

Concatenate Check type of B

String

Convert Number to String


Check type of A

String

Number

Concatenate Check type of B

String


Concatenate


Check type of A


String Number

Number


Concatenate


Check type of A


Check type of B

String Number

Number


Concatenate


Check type of A


Check type of B

StringString Number

Number


Concatenate



Check type of A


Check type of B

StringString Number

Number


Concatenate


Concatenate



Check type of A


Check type of B

StringString Number

Number


Concatenate

ConcatenateNumber


Check type of A

StringConcatenate

FloatingPoint or Normal

Check type of B

Check type of B

StringString Number

Number


Concatenate

ConcatenateNumber



Check type of A

StringConcatenate


Float Calculation

Check type of B

Check type of B

StringString

Float

Number

Number


Concatenate

ConcatenateNumber



Check type of A

StringConcatenate


Normal Add InstructionFloat Calculation

Check type of B

Check type of B

StringString

Float

Number

Number


Concatenate

ConcatenateNumber



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http://benchmarksgame.alioth.debian.org/u64q/performance.php?test=spectralnorm

Typed vs Untyped Performance


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Dur

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Dur

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JSONSerialization SingleQuery DataUpdates

TechEmpowerPerformance(%ageofbest- higherisbetter)

Node.js

Java

Increasing levels of I/O

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DeveloperProductivity

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Typed vs Untyped Developer Productivity


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Volu

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Memory Management

Mem

ory

Heap Size

Mem

ory

Live in-use data(Retained Set)

Heap Size

Mem

ory


Heap Size

Temporary Data(Garbage)


Mem

ory


Heap Size


Mem

ory


Heap Size



40 to 60%

Mem

ory


Heap Size



40 to 60%

~2X additional memory for additional performance

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ARC vs Garage Collection

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Usa

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Usa

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Cloud CostsProvider Type Memory CPUs Cost/month

Amazon EC2 Linux t2.nano 512MB 1 vCPU US$4.68

Digital Ocean Standard 512MB 1 Core Processor US$5.00

Pivotal Cloud Foundry

App Instance 512MB 4 vCPUs US$10.80

Heroku Standard 1x 512MB 1 Share US$25.00

IBM Bluemix Instant Runtimes

512MB 4 vCPUs US$24.15

Containers 512MB 4 vCPUs US$10.22


Amazon EC2 Linux t2.nano 512MB 1 vCPU US$4.68Linux t2.micro 1GB 1 vCPU US$9.36

Digital Ocean Standard 512MB 1 Core Processor US$5.00Standard 1GB 1 Core Processor US$10.00


App Instance 512MB 4 vCPUs US$10.80App Instance 1GB 4 vCPUs US$21.60

Heroku Standard 1x 512MB 1 Share US$25.00Standard 2x 1GB 2 Shares US$50.00


512MB 4 vCPUs US$24.15Instant

Runtimes1GB 4 vCPUs US$49.35

Containers 512MB 4 vCPUs US$10.22Containers 1GB 4 vCPUs US$20.59


Amazon EC2 Linux t2.nano 512MB 1 vCPU US$4.68Linux t2.micro 1GB 1 vCPU US$9.36Linux t2.small 2GB 1 vCPU US$18.72

Digital Ocean Standard 512MB 1 Core Processor US$5.00Standard 1GB 1 Core Processor US$10.00Standard 2GB 2 Core

ProcessorsUS$20.00


App Instance 512MB 4 vCPUs US$10.80App Instance 1GB 4 vCPUs US$21.60App Instance 2GB 4 vCPUs US$43.20







Amazon EC2 Linux t2.nano 512MB 1 vCPU US$4.68Linux t2.micro 1GB 1 vCPU US$9.36Linux t2.small 2GB 1 vCPU US$18.72

Linux t2.medium 4GB 2 vCPUs US$37.44Digital Ocean Standard 512MB 1 Core Processor US$5.00

Standard 1GB 1 Core Processor US$10.00Standard 2GB 2 Core

ProcessorsUS$20.00


App Instance 512MB 4 vCPUs US$10.80App Instance 1GB 4 vCPUs US$21.60App Instance 2GB 4 vCPUs US$43.20






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Full Stack Development

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Unless it is absolutely necessary to run Java in web browsers, disable it as described below, even after updating to 7u11. This will help mitigate other Java vulnerabilities that may be discovered in the future.

This and previous Java vulnerabilities have been widely targeted by attackers, and new Java vulnerabilities are likely to be discovered. To defend against this and future Java vulnerabilities, consider disabling Java in web browsers…

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Unless it is absolutely necessary to run Java in web browsers, disable it as described below, even after updating to 7u11. This will help mitigate other Java vulnerabilities that may be discovered in the future.

This and previous Java vulnerabilities have been widely targeted by attackers, and new Java vulnerabilities are likely to be discovered. To defend against this and future Java vulnerabilities, consider disabling Java in web browsers…

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•Reuse of code components •Write One Run Anywhere

•Sharing of data models •Less maintenance

•Server-side rendering •Pre-Initialise UI on the server •Improves first paint time •Enables search indexing

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Which, Where, When?

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Node.js SwiftJava

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High Processing Performance

Transaction Processing Frameworks

Node.js SwiftJava

Type Safety for Calculations

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High Processing Performance


Node.js SwiftJava

Type Safety for Calculations

Business Logic Performance Critical

Batch Processing

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High Processing Performance High IO Performance


Node.js SwiftJava

Fullstack Web Development

Type Safety for Calculations Async Programming for Scale


Batch Processing

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Node.js SwiftJava


Type Safety for Calculations Async Programming for Scale


Batch Processing

Delivery Tier REST APIs

Enterprise Modernisation

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Node.js SwiftJava


Type Safety for Calculations Async Programming for Scale ?Business Logic

Performance Critical Batch Processing

Delivery Tier REST APIs

Enterprise Modernisation

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Emerging Architectures

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Client Devices Application Tier Database Tier

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GATEWAY


Client Devices Service Tier Database Tier

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Client Devices Service Tier Database TierDelivery Tier

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GATEWAY


Client Devices Service Tier Hosted ServicesDelivery Tier

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GATEWAY


Client Devices Hosted ServicesDelivery Tier

ROUTING PROXY

Micro-Services

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GATEWAY



ROUTING PROXY

Micro-Services

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GATEWAY



ROUTING PROXY

Micro-Services

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GATEWAY



ROUTING PROXY

Micro-Services

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GATEWAY



ROUTING PROXY

Micro-Services

API Team

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GATEWAY



ROUTING PROXY

Micro-Services

API Team

Web Team

Android Team

iOS Team

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Server Side Rendering

First Paint Time

Search Engine Optimisation

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Server Side Rendering

First Paint Time

Search Engine Optimisation

Network Payload Size

CPU Usage

Request Frequency

Battery UsageMemory Usage

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ROUTING PROXY

Micro-Services

API Team

Web Team

Android Team

iOS Team

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ROUTING PROXY

Micro-Services

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GATEWAY



ROUTING PROXY

Micro-Services

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GATEWAY



ROUTING PROXY

Micro-Services

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GATEWAYClient Devices Hosted Services

ROUTING PROXY

Micro-ServicesBackend For Frontend(BFF)


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GATEWAYClient Devices Hosted Services

ROUTING PROXY

Micro-ServicesBackend For Frontend(BFF)

UI Engineering

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How?

$ idt create

Create:

$ idt create? Select a pattern: 1. Web App2. Mobile App3. Backend for Frontend4. MicroserviceEnter a number> 3

? Select a starter:1. Basic BackendEnter a number> 1

? Select a language:1. Java - MicroProfile / Java EE2. Node3. Java - Spring Framework4. SwiftEnter a number> 2

? Enter a name for your project> MyNodeProject

? Enter a hostname for your project> NodeProject22 ? Do you want to add services to your project? [y/n]> n The project, mynodeproject, has been successfully saved into the current directory.OK

Create:

$ idt deploy -t container

Deploy:

MICROSERVICEBUILDER JENKINS

BLUEMIX DEVOPS

$ idt deploy -t containerThe container deployment image name for the deployment of this project will be:(The image will be tagged by Docker with this base name and appended with a version)registry.ng.bluemix.net/namespace/myswiftproject

? Press [Return] to accept this, or enter a new value now>

The IBM cluster name for the deployment of this project will be:mycluster

? Press [Return] to accept this, or enter a new value now> Log in to the IBM Container RegistryOKConfigure for a Bluemix deployment with cluster ‘mycluster'

Deploying to CloudOK

Deploy:

MICROSERVICEBUILDER JENKINS

BLUEMIX DEVOPS

$ idt deploy -t containerThe container deployment image name for the deployment of this project will be:(The image will be tagged by Docker with this base name and appended with a version)registry.ng.bluemix.net/namespace/myswiftproject

? Press [Return] to accept this, or enter a new value now>

The IBM cluster name for the deployment of this project will be:mycluster

? Press [Return] to accept this, or enter a new value now> Log in to the IBM Container RegistryOKConfigure for a Bluemix deployment with cluster ‘mycluster'

Deploying to CloudOK

Deploy:

Monitor:

metrics-dash

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IBM Foundation Support for Runtimes

generator-nodeserverappmetrics monitoring

generator-swiftserverswiftmetrics monitoringjavametrics monitoring

Support: Language Runtimes

IBM Support for Runtimes

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LoopBack





IBM Advanced Support for Runtime Frameworks

Support: Web Frameworks

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LoopBack


IBM Advanced Support for Runtime Frameworks




Support: Module Ecosystem

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Questions?

IBM Cloud University 2017 | October

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IBM Cloud University: Java, Node.js and Swift

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Transcript of IBM Cloud University: Java, Node.js and Swift