This document provides an agenda for a CASCON 2016 presentation on Node.js. It discusses why Node.js is used, what Node.js is, its ecosystem, productivity benefits, performance advantages, and IBM's involvement in the Node.js community. Key points covered include Node.js being asynchronous and event-driven, its large ecosystem of over 300,000 modules, and IBM being a founding member of the Node.js Foundation.

1. © 2016 IBM Corporation 1
Agenda – CASCON 2016
• Why Node.js ?
• Node.js quick look
• Node.js community
• IBM involvement

2. © 2016 IBM Corporation
• What is it ?
• Ecosystem
• Productivity
• Performance
Why Node.js ?
2

3. © 2016 IBM Corporation 3
Why Node.js – What is it?
• JavaScript != Java
• Node.js = Server-side JavaScript
• Event-oriented
• Non-blocking
• Asynchronous

4. http://www.modulecounts.com/
© 2016 IBM Corporation
• There is a module for that
• 300K modules
• #1 on module counts
• #1 on Github (#projects)
• #1 on StackOverflow(2015)
Why Node.js ? – Ecosystem
4

5. © 2016 IBM Corporation
• Most used runtime in
Bluemix
TM
Why Node.js ? – Ecosystem
5

6. Why Node.js ? – Productivity
© 2016 IBM Corporation
• Faster development less code
• PayPal - https://www.paypal-engineering.com/2013/11/22/node-js-at-paypal/
• Took 1/2 time with less people
• 33% fewer lines of code
• NextFlix- http://www.infoworld.com/article/2610110/javascript/paypal-and-netflix-cozy-up-
to-node-js.html
6

7. Why Node.js ? – Productivity
© 2016 IBM Corporation
• Reuse of “isomorphic” code components
• Availability of JavaScript talent
• Developer satisfaction
7

8. Why Node.js ? – Performance
© 2016 IBM Corporation
Event based: perfect fit for asynchronous non-blocking I/0
8

9. Why Node.js ? - Performance
© 2016 IBM Corporation
• Thousands of concurrent connections
• PayPal - https://www.paypal-engineering.com/2013/11/22/node-js-at-paypal/
• Double number of requests/sec
• Response times 35% lower
• Groupon – http://www.nearform.com/nodecrunch/node-js-becoming-go-technology-enterprise/
• Reduced page load times by 50%
9

10. © 2016 IBM Corporation 10
• Key characteristics
• Components
• Event loop
Node.js – Quick Look

11. © 2016 IBM Corporation 11
• Small (linux.tar.xz)
• Download 8.2MB
• Uncompressed 35.5 MB
• Fast startup
• 40 ms
• Small footprint
• 16.5 MB
Node.js – Deep Dive – Key Characteristics
https://nodejs.org/en/download/
https://benchmarking.nodejs.org/

12. Node.js – Deep Dive - Components
© 2016 IBM Corporation
V8 – Javascript
Engine
V8
JavaScript Engine Libuv
Other
Dependencies
ICU
Cares
Zlib
http_parser
…
Node Binding Layer
Operating System
Node Libraries
Modules (npm or local) + Application
OpenSSL
12

13. Node.js – Deep Dive – Event Loop
© 2016 IBM Corporation 13

14. © 2016 IBM Corporation 14
• History
• Day to Day
Node.js Community

15. © 2016 IBM Corporation 15
• 2009 – written by Ryan Dhal
• Jan 2010 - npm
• Sep 2010 – Joyent sponsors Node.js
• June 2011 – Windows support
• 2012 – 2014 – Hand over to Isaac Schlueter, then Timothy J. Fontaine
• December 2014 – io.js fork
• June 2015 – Node.js Foundation
• Oct 2015 – Node.js 4.x unites io.js/node.js 0.12.x lines
• Oct 2016 – Node.js 6.x
Node.js Community - History

16. © 2016 IBM Corporation 16
• TSC - Technical Steering Committee
• CTC – Core technical Committee
• Collaborators (~76)
• Working Groups (Build, LTS, Benchmarking, API etc.)
• Teams
Node.js Community – Day to Day
https://github.com/nodejs/TSC/
https://github.com/nodejs/node/
https://github.com/nodejs/node/blob/master/WORKING_GROUPS.md
https://github.com/orgs/nodejs/teams

17. © 2016 IBM Corporation 17
• Node.js Community Involvement
• V8 Community Involvement
• Platform Availability
• Tooling
Node.js - IBM

18. © 2016 IBM Corporation 18
• Leadership
• Founding member of Node.js Foundation (1 board member)
• 4 CTC/TSC members (+2 past members)
• Facilitating multiple working groups
Node.js IBM - Node.js Community Involvement

19. © 2016 IBM Corporation 19
• Regular contributors
• Active in working groups
LTS, build, post-mortem, build, security, api, citgm, dev-policy,
benchmarking, internationalization
• 11 IBMr’s with commit rights
• including #2, #5, #15, #28, #39, #42, #46
• Driving support for platforms - Linux on PPC, AIX and
Linux on Z
Node.js IBM - Node.js Community Involvement

20. © 2016 IBM Corporation 20
• Deep expertise at V8
• Developed ports to IBM Platforms
• Contribution back to official V8 repositories:
https://github.com/v8/v8
• PPC: V8 4.3 and later have full functional PPC implementation
• s390: V8 5.1 and later have full functional implementation
• ~10-15 commits per week to V8 to maintain PPC/zlinux port
• Port to z/OS in progress:
• https://github.com/ibmruntimes/v8z/tree/3.28-zos
Node.js IBM – V8 Community Involvement

21. © 2016 IBM Corporation 21
Node.js IBM – Platform Availability
• IBM SDK for Node.js
– Shipping Node.js releases since 2013
– 0.10.x + 0.12.x + 4.x + 6.x
– Linux on x / p / z, AIX, Windows, Mac
– Working on support for z/OS
• Community

22. © 2016 IBM Corporation 22
Node.js Long Term Support (LTS)
https://github.com/nodejs/lts
• Current Release
– every 6 months
– Semver major
• LTS release every
October
– Even semver majors
– 30 months of support

23. © 2016 IBM Corporation 23
• Appmetrics
• Health Center
• NodeReport
• Core inspection - IDDE/LLNODE
• GCMV
Node.js IBM – Tooling

24. © 2016 IBM Corporation 24
Node.js IBM – Appmetrics
https://www.npmjs.com/package/appmetrics

25. © 2016 IBM Corporation 25
Node.js IBM – Tooling - Healthcenter
https://marketplace.eclipse.org/content/
ibm-monitoring-and-diagnostic-tools-
health-center
• Free download
• Node.js + Java

26. © 2016 IBM Corporation 26
Node.js IBM – Tooling - NodeReport
NodeReport example - heap
out of memory error
NodeReport content:
● Event summary
● Node.js and OS versions
● JavaScript stack trace
● Native stack trace
● Heap and GC statistics
● Resource usage
● libuv handle summary
● Environment variables
● OS ulimit settings
https://github.com/nodejs/nodereport
© 2016 IBM Corporation

27. © 2016 IBM Corporation 27
• MDB/LLNODE/IDDE
• Working in community to
standardize
Node.js IBM – Tooling - Core Inspection

28. • Free download
• --trace_gc
• --trace_gc_nvp
• --trace_gc_verbose
• Node.js + Java
© 2016 IBM Corporation 28
Node.js IBM – Tooling - GCMV
https://marketplace.eclipse.org/content/
ibm-monitoring-and-diagnostic-tools-
garbage-collection-and-memory-
visualizer-gcmv

29. Copyright © 2016 by International Business Machines Corporation (IBM). No part of this document may be reproduced or transmitted in any form without written permission
from IBM.
U.S. Government Users Restricted Rights - Use, duplication or disclosure restricted by GSA ADP Schedule Contract with IBM.
Information in these presentations (including information relating to products that have not yet been announced by IBM) has been reviewed for accuracy as of the date of initial
publication and could include unintentional technical or typographical errors. IBM shall have no responsibility to update this information. THIS DOCUMENT IS DISTRIBUTED
"AS IS" WITHOUT ANY WARRANTY, EITHER EXPRESS OR IMPLIED. IN NO EVENT SHALL IBM BE LIABLE FOR ANY DAMAGE ARISING FROM THE USE OF THIS
INFORMATION, INCLUDING BUT NOT LIMITED TO, LOSS OF DATA, BUSINESS INTERRUPTION, LOSS OF PROFIT OR LOSS OF OPPORTUNITY. IBM products and
services are warranted according to the terms and conditions of the agreements under which they are provided.
Any statements regarding IBM's future direction, intent or product plans are subject to change or withdrawal without notice.
Performance data contained herein was generally obtained in a controlled, isolated environments. Customer examples are presented as illustrations of how those customers
have used IBM products and the results they may have achieved. Actual performance, cost, savings or other results in other operating environments may vary.
References in this document to IBM products, programs, or services does not imply that IBM intends to make such products, programs or services available in all countries in
which IBM operates or does business.
Workshops, sessions and associated materials may have been prepared by independent session speakers, and do not necessarily reflect the views of IBM. All materials and
discussions are provided for informational purposes only, and are neither intended to, nor shall constitute legal or other guidance or advice to any individual participant or their
specific situation.
It is the customer’s responsibility to insure its own compliance with legal requirements and to obtain advice of competent legal counsel as to the identification and
interpretation of any relevant laws and regulatory requirements that may affect the customer’s business and any actions the customer may need to take to comply with such
laws. IBM does not provide legal advice or represent or warrant that its services or products will ensure that the customer is in compliance with any law.

30. Information concerning non-IBM products was obtained from the suppliers of those products, their published announcements or other publicly available sources. IBM has not
tested those products in connection with this publication and cannot confirm the accuracy of performance, compatibility or any other claims related to non-IBM products.
Questions on the capabilities of non-IBM products should be addressed to the suppliers of those products. IBM does not warrant the quality of any third-party products, or the
ability of any such third-party products to interoperate with IBM’s products. IBM EXPRESSLY DISCLAIMS ALL WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING BUT
NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
The provision of the information contained herein is not intended to, and does not, grant any right or license under any IBM patents, copyrights, trademarks or other intellectual
property right.
• IBM, the IBM logo, ibm.com, Aspera®, Bluemix, Blueworks Live, CICS, Clearcase, Cognos®, DOORS®, Emptoris®, Enterprise Document Management System™,
FASP®, FileNet®, Global Business Services ®, Global Technology Services ®, IBM ExperienceOne™, IBM SmartCloud®, IBM Social Business®, Information on Demand,
ILOG, Maximo®, MQIntegrator®, MQSeries®, Netcool®, OMEGAMON, OpenPower, PureAnalytics™, PureApplication®, pureCluster™, PureCoverage®, PureData®,
PureExperience®, PureFlex®, pureQuery®, pureScale®, PureSystems®, QRadar®, Rational®, Rhapsody®, Smarter Commerce®, SoDA, SPSS, Sterling Commerce®,
StoredIQ, Tealeaf®, Tivoli®, Trusteer®, Unica®, urban{code}®, Watson, WebSphere®, Worklight®, X-Force® and System z® Z/OS, are trademarks of International
Business Machines Corporation, registered in many jurisdictions worldwide. Other product and service names might be trademarks of IBM or other companies. A current
list of IBM trademarks is available on the Web at "Copyright and trademark information" at: www.ibm.com/legal/copytrade.shtml.
• Node.js is an official trademark of Joyent. IBM SDK for Node.js is not formally related to or endorsed by the official Joyent Node.js open source or commercial project.
• Java, JavaScript and all Java-based trademarks and logos are trademarks or registered trademarks of Oracle and/or its affiliates.
• npm is a trademark of npm, Inc.