CloudOps Summit 2012, Frankfurt, 20.9.2012 Lightning Talk by Jelle Frank van der Zwret, Interxion http://cloudops.de/sprecher/#jellezwet Find the video of this talk at http://youtu.be/gk6812oRz-Q

1. Truth and Lies about
Latency in the Cloud
Jelle Frank van der Zwet
Global Marketing Manager Cloud

2. Agenda
What you will take away from this presentation
WHAT WHY HOW
is Latency? is Latency to reduce
important? Latency?

3. Remember...?
Do you know
what is was like...
when we didn’t have
high speed internet?

4. Trying to define latency is not simple
• Endpoints aren't fixed:
– High speed fiber
– 3G or 4G mobile networks
• Consider the location of the
ultimate end-users and the
networks that connect them to
the destination networks
• Who are the ultimate "owners"
and "users" of our applications
– Delivering the appropriate service
levels, means also measuring and
controlling the expected latencies

5. The true cost of latency can add up
A half-second delay will cause a 20%
drop in Google's traffic.
A tenth of a second delay can cause a
drop in one percent of Amazon's sales.

6. Todays complicating factors
• Distributed computing
– Then: Everything in 1 enterprise data center
– Now: Distributed applications can employ multiple servers
• Virtualization adds another layer of complexity
– Virtualised network infrastructures can introduce its own series of
packet delays before any data even leaves the rack itself
• It isn't just about ping, either
– Best way to measure and understand latency is to measure the
performance of the same protocols that your applications use.
• Understand Quality of Service and what traffic is prioritized

7. Cloud Infrastructure Requirements
What applications benefit from low latency
Applications Compute Intensity Network Bandwidth Network Latency*
Testing & Development High Low High
Web browsing Low Low High
Backup & Recovery Low High High
Email & Calendar Low Low High
HRM Medium Low High
Document Management Low High Medium
CRM Medium Low Medium
Finance & Accounting High Medium Medium
ERP High Medium Medium
Payments & Transactions Medium High Medium
Virtual Desktops Medium Medium Low
Network Storage High Medium Low
Unified Communication High Medium Low
Online Gaming High Medium Low CDN to get
HD Video streaming High High Low close to end-user
Black Box (M2M) Trading High High Proximity

8. Cloud and Applications
Mapped on Performance and Availability
Performance
We live
in a world of
Backup & Email & CRM Payments & Private Unified Black Box
many clouds
Recovery Calendar Transactions Cloud Communication (M2M) Trading and even more
applications
Availability
Analytics HRM ERP Finance & Virtual Network
Accounting Desktops Storage
Enterprises
Test & Web Document Public Gaming Video & Live
approach cloud
Development Browsing Management Cloud Streaming in silos
High < 80ms RTD Medium < 40ms RTD Low < 20ms RTD < 1ms RTD

9. Why bypass the Internet?
How to connect clouds?
Direct Connect Direct Connect
Private Cloud Public Cloud Managed Hosting
The Internet has no SLA

10. What’s happening in the meet-me-room
Providing more consistent network connections
Backup &
Archiving Supplement capacity when
working with large data sets
Analytics
Big Data
Public Clouds
Virtual
Desktops
Real time data feeds
Collabo-
Direct ration
Private Cloud
Connect Email &
Calendar
Distributed applications
in hybrid environments
CRM
SaaS
HPC
Back up via Planned or unplanned
Internet peaks in capacity
Gaming
Bursting

11. Free Cloud Test Labs
Easy access to industry-leading software, systems and connectivity
Amsterdam – The Netherlands
London – United Kingdom
Frankfurt – Germany

12. More information, download our whitepaper
Truth and Lies about Latency in the Cloud
Jelle Frank
David Strom van der Zwet
David Strom is an international authority on network Jelle Frank (JF) van der Zwet is Global Marketing
and Internet technologies. He is currently the business Manager at Interxion. He has over 13 years of
channels writer for ReadWriteWeb. He also contributes experience in marketing and product development.
to Slashdot.org and GigaOm Pro. He has written He’s a frequent speaker at international events and
extensively on IT-related topics for more than 25 years contributor to Cloud Times, Virtual-Strategy Magazine,
for a wide variety of print publications and websites. Inside-HPC and Wired Cloudline.
www.interxion.com/sectors/cloud

13. Thank you! – Vielen dank!
Jelle Frank van der Zwet
Global Marketing Manager Cloud
jellez@interxion.com