InterConnect 2017 : Programming languages in the enterprise: Which language should I use?

InterConnect2017

Programming languages inthe enterprise: Whichlanguage should I use?

Shereen Ghobrial

Offering Management,IBM Compilers

1 3/17/2017

2 3/17/2017

Please note

IBM’s statements regarding its plans, directions, and intentare subject to change or withdrawal without notice at IBM’ssole discretion.

Information regarding potential future products is intended tooutline our general product direction and it should not be reliedon in making a purchasing decision.

The information mentioned regarding potential future productsis not a commitment, promise, or legal obligation to deliverany material, code or functionality. Information about potentialfuture products may not be incorporated into any contract.

The development, release, and timing of any future featuresor functionality described for our products remains at our solediscretion.

Performance is based on measurements and projectionsusing standard IBM benchmarks in a controlled environment.The actual throughput or performance that any user willexperience will vary depending upon many factors, includingconsiderations such as the amount of multiprogramming inthe user’s job stream, the I/O configuration, the storageconfiguration, and the workload processed. Therefore, noassurance can be given that an individual user will achieveresults similar to those stated here.

• The Application Developers

• Modern Languages for EnterpriseServers

• Java

• Node.js

• Swift

• Demo – CICS & Swift

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Agenda

Assembler

COBOL

PL/I

C/C++

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When were the followinglanguages introduced to zSystems?

Assembler (early 1950s)

COBOL (1959)

PL/I (1964)

C/C++ (1972/1983)

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When were the followinglanguages introduced to zSystems?

The Application Developers

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42%

50%

19%

45%

Mobile Apps Desktop Apps Internet of Things Cloud & BackendServices

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What platforms do they target?

Source: Developer Economics – State of the Developer Nation Q1 2016 | Licensed under CC BY ND | Copyrights VisionMobile

Percent of professional developers targeting each sector(the same developer may target multiple sectors)

(incl. mobile web) (incl. web)

• Developers are typically multi-lingual, using the language thatmakes sense for the projects theyare working on

• Java maintains the top spot despiterumors of its decline

• JavaScript the most popularscripting language

• Swift is on the rise (the newestlanguage on the list)

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Which languages do they use?Top Programming Languages

All populations in millions

Language Population

Java 14.0

C++ 13.1

JavaScript 11.6

C 11.3

C# 11.2

PHP 9.4

Swift or Objective C 8.8

Python 7.9

Perl 7.4

Ruby 6.8

Other 13.2

Source: Global Developer Population and Demographics Survey: Volume I, © 2016 Evans Data Corp.

The Motivation for Modernlanguages on z Systems

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Modern Application Design

Public Cloud Services

On-prem Services

User-facing Client Apps

Things / Sensors

End Users

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On-prem Services


Things / Sensors

End Users

Developer Experience

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On-prem Services


Things / Sensors

End Users


JavaNode.js

Swift

JavaNode.js

Swift

JavaNode.js

Swift

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On-prem Services


Things / Sensors

End Users


JavaNode.js

Swift

JavaNode.js

Swift

JavaNode.js

Swift

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Why do we need modern languages on IBM z Systems / LinuxONE?

Skills: Millions of Available Developers


On-prem Services


Things / Sensors

End Users


1

JavaNode.js

Swift

JavaNode.js

Swift

JavaNode.js

Swift

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Modernization: Good fit for API Economy

CICS

REST (zOS Connect)

COBOLApp

DB2

JavaNode.js

Swift

2

JavaNode.js

Swift

JavaNode.js

Swift

JavaNode.js

Swift

JavaNode.js

Swift

IMS

JavaNode.js

Swift

JavaNode.js

Swift

mongoDB

mariaDB

Future Intention

z System

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Performance: Put Your Back-End Closer to Your Data

FrontEnd

3

FrontEnd

BackEnd

BackEnd

z System

mongoDB/mariaDB

DB2/IMS

BackEnd

SLOW

FASTFASTFAST

Java

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18

Why Java?

There are

14 millionJava developers

80%of the world’s corporate data

resides on or originates on the

mainframe

Two

pervasivetechnologies…

…combined for

powerfulperformance…

19 19

Classified Java projectsas >= successful

now have Java applicationsin production

>80% 85%

95 client responses

68% Java Project on z

85% within 3 years

145 surveys returned

In 1 week…

How Successful was your project?Enterprise ArchitectsSystem programmers

Application Developers

had the most influenceOn Java on z projects

Survey Results:

Clients are successfullyusing Java on mainframe

Node.js

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Node.js

What is Node.js?

• Server-side JavaScript platform

• Built on Google's V8 JavaScript engine

• Goal: Efficiently build:

• fast,

• scalable,

• 'real-time' network applications

• Event-oriented, non-blocking,asynchronous I/O framework

Why Node.js?

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Productive

Easy touse

Scalable

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Why Node.js? Productivity

• Large repository of modules:

• NPM: Node Package Manager

• Repository of communitycontributed modules

• Developers love it!

• 400k modules and growing!

• 3x growth rate vs otherruntimes

• High productivity for applicationdevelopers (due to available modules)

Node.js

(Feb 16, 2017 – modulecounts.com)

• Event-driven, single-threadedmodel

• Eliminates concurrency andthread-safety worries

• Integration with JSON APIs

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Why Node.js? Simple to use

• Node.js leverages theunderlying async i/o support inthe OS

• Thousands of concurrentconnections with minimaloverhead

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Why Node.js? Scalable

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IBM SDK for Node.js

Combine modern web JavaScript + Node.js applications with thebenefits of z Systems hardware, monitoring, and security

Compatible to Node.js 0.12, 4.x, 6.x

High performance JavaScript for Linux on z Systems• Highly scalable, event-driven platform with non-blocking I/O

• Thousands of concurrent connections with minimal overhead

• Up to 2x better performance over Intel on AcmeAir*

z Systems connectivity• Co-locate Node.js apps for reduced latency accessing z/OS data/services

• Up to 2.5x better throughput, 60% faster response time to DB2 on z/OS*

Security and dependability• Leverages the trusted environments of z Systems to maximize security and

uptime of critical Node.js applications.

Unified diagnostics tooling with IBM SDKs for Java®

• Monitor your application with IBM Health Center

http://www.ibm.com/developerworks/web/nodesdk

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Unified Tooling

• Unified diagnostics tooling with IBM SDKs for Java®

• Monitor with Health Center

• Quick to deploy, small impact live monitoring tool

• Tracks Memory+ CPU usage, Garbage collection, application hot spots, and more!

• http://www.ibm.com/developerworks/java/jdk/tools/healthcenter

• Debug with Interactive Diagnostics Data Explorer (IDDE)

• FFDC with nodereport: https://github.com/nodejs/nodereport

• Post mortem dump analysis

• http://www.ibm.com/developerworks/java/jdk/tools/idde

• Node Application Metrics (appmetrics)

• npm module instruments the Node.js runtime for performance monitoring

• https://www.npmjs.com/package/appmetrics

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Benefits of Co-locating Node.js with Data

DB2

Twitter

Linux

zOS

Accessing DB2data on z/OS

Node.js co-located on

Linux on z vsoff-platform

60% FasterResponse

Time

2.5x BetterThroughput

z/OS Connect

IMS

WebSphereApp Server

CICS

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IBM SDK for Node.js and Community Drivers (LinuxONE)

• IBM SDK for Node.js

• Matches and extends community version - shares 99% of code!

• Introduces additional RAS capabilities

• core debugging with IBM Diagnostic and Data Explorer (IDDE)

• Security Fixes, License + Code scans

IBM SDK for Node.js Community

V1.1.x 0.10.x

V1.2.x 0.12.x

V4.x V4.x LTS

V6.x V6.x LTS *community drivers available*

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IBM SDK for Node.js - z/OS

• Node.js on z/OS Tech Preview• https://developer.ibm.com/node/sdk/ztp

• Open Source Collaboration Model

• Contributions and feedback welcomed!• GitHub pull requests, IBM SDK for Node.js community• V8: github.com/ibmruntimes/v8z (Branch: 3.28-zos, 5.1-zos)• Node: github.com/ibmruntimes/node (Branch: v0.12-zos)• libuv: github.com/libuv/libuv (Version: v1.11 or newer)*

• Libuv upstreamed to official repository

Swift

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Swift Ecosystem

WWDC 2014Apple releases anew programminglanguage called

“Swift”

WWDC 2015Apple announcesto open source

Swift

“Swift is growingfaster than anything

else we track”

June 2014

June 2015

July 2015

Nov. 2015

Apple releases Swiftas Open Source.

Dec. 3, 2015

Jan. 2016Programming Language RankingsSwift “meteoric rise” continues. “Swiftmoves up one spot from #18 to #17Y/Y…and is within hailing distance ofout Tier 1 languages”.

Introducing the IBMSwift Sandbox

Feb 2016

IBMInterConnect

2016IBM to bring Swift tothe cloud to radically

simplifying end-to-enddevelopment of apps

Swift #2 “Most Loved”

Nov. 2016

Mar. 2016

Tokyo

Sep. 2016

NYC

IBM Bluemix Runtimefor Swift

Industry backing

Developers acceptance

Tools & packages

Conferences & meetups

Why Swift?

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Performant

Modern

Safe

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Why Swift? Performant

4 4.3

15.8

134.2

0

20

40

60

80

100

120

140

160

Swift Java JavaScript Ruby

Du

ratio

n(s

)(lo

we

ris

be

tte

r)

Performance: Fast

15

32.2

25.3

54.6

0

10

20

30

40

50

60

Swift Java JavaScript Ruby

Me

mo

ryU

sa

ge

(MB

)(lo

we

ris

be

tte

r)

Performance: Low Memory

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

Easy to learn

Simple to use

Strong foundation on LLVM

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Why Swift? Modern

• Type safe

• Helps developers refactor,extend, iterate on solutions.

• Error detection at compile time• Automatic initialization

• Variables are automaticallyinitialized

• Memory is automatically allocatedand managed.

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Why Swift? Safe

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We have already started the journey

• IBM has been working with the open source community to improveSwift for the server platform, with many changes already integrated intoSwift 3.0

• IBM has already enabled LinuxONE on IBM Swift Sandbox

• IBM has pushed all code for LinuxONE to github

• Swift 3.0 GA’ed in September 2016 with full LinuxONE support

• IBM is working to bring Swift to z/OS to modernize the whole zecosystem (contact us to join our beta program).

• Core tools to develop in Swift:

• Compiler (Swift 3)

• Swift Runtime

• Debugger (lldb)

• Web framework (Kitura)

• World class service & support

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Introducing a new offering:

IBM Toolkit for Swift – Linux on z Systems

Available: March 17th, 2017Available: March 17th, 2017

• We are looking for innovators andearly adopters

• For both Swift & Node.js

• Validate user scenarios and getearly access to the latest drivers.

• If interested, contact:

• Shereen Ghobrial:[email protected]

• Roland Koo:

[email protected]

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You can impact the future

Demo

CICS & Swift

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Notices and disclaimers

Copyright © 2017 by International Business Machines Corporation (IBM).No part of this document may be reproduced or transmitted in any formwithout written permission from IBM.

U.S. Government Users Restricted Rights — use, duplication ordisclosure restricted by GSA ADP Schedule Contract with IBM.

Information in these presentations (including information relating toproducts that have not yet been announced by IBM) has been reviewedfor accuracy as of the date of initial publication and could includeunintentional technical or typographical errors. IBM shall have noresponsibility to update this information. This document is distributed“as is” without any warranty, either express or implied. In no eventshall IBM be liable for any damage arising from the use of thisinformation, including but not limited to, loss of data, businessinterruption, loss of profit or loss of opportunity. IBM products andservices are warranted according to the terms and conditions of theagreements under which they are provided.

IBM products are manufactured from new parts or new and used parts.In some cases, a product may not be new and may have been previouslyinstalled. Regardless, our warranty terms apply.”

Any statements regarding IBM's future direction, intent or productplans are subject to change or withdrawal without notice.

Performance data contained herein was generally obtained in acontrolled, isolated environments. Customer examples are presentedas illustrations of how those customers have used IBM products and

the results they may have achieved. Actual performance, cost, savings orother results in other operating environments may vary.

References in this document to IBM products, programs, or servicesdoes not imply that IBM intends to make such products, programs orservices available in all countries in which IBM operates or doesbusiness.

Workshops, sessions and associated materials may have been preparedby independent session speakers, and do not necessarily reflect theviews of IBM. All materials and discussions are provided for informationalpurposes only, and are neither intended to, nor shall constitute legal orother guidance or advice to any individual participant or their specificsituation.

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Notices and disclaimerscontinued

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InterConnect 2017 : Programming languages in the enterprise: Which language should I use?

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