Location:

Level: 
Beginner
9:00am - 4:00pm

Prerequisites

None.

Tutorial: Understanding Latency & Application Responsiveness

Managing, monitoring, and improving application responsiveness is a common need for many software professionals. Whether you develop Java applications or manage them, understanding application responsiveness and the major mechanisms that affect it is key to achieving successful applications and happy users. In this workshop, Gil Tene (CTO, Azul Systems) will provide an in-depth overview of Latency and Response Time Characterization, including proven methodologies for measuring, reporting, and investigating latencies, and and overview of some common pitfalls encountered (far too often) in the field. While most of this discussion will apply to all application environments, some specific considerations in JVM based environments will be covered as part of this workshop. Our discussion will include an exploration of of the common needs and motivations for understanding the behavior of application response time and latency, and ways to successfully capture these descriptions and relate them to business needs. However, even good characterization of bad data is useless. If measurements of response time present false or misleading latency information, even the best analysis can lead to wrong operational decisions and poor application experience. Gil will demonstrate and discusses some common pitfalls, false assumptions and problematic measurement techniques that lead to dramatically incorrect reporting results, and will explain how these false measurements naturally occur using the most common measurement methods and tools in use today. We will discuss the coordinated data omission problem, and ways to work around it, and will introduce and demonstrate how simple and recently open sourced tools can be used to improve and gain higher confidence in both latency measurement and reporting. Garbage Collection, in platforms that use it, is often dominantly responsible for application responsiveness and latency behavior. Gil will review and classify the various garbage collectors and collection techniques available in managed runtimes today. We will define terms and metrics common to all collectors, classify some commonly available collector mechanisms, and discuss the tradeoffs involved in balancing responsiveness requirements against other concerns (like throughput, space, etc.). We will include an interactive discussion of how these tradeoffs play off in the real world. Who should attend: Software developers, architects, technical leaders and anyone with an interest in designing or measuring for latency in software environments.

Tracks

Covering innovative topics

Monday, 3 November

Tuesday, 4 November

Wednesday, 5 November

Register

Limited early bird tickets available now

* Tutorials refundable by April 15th, 2014
Early Bird Discounts Conference
(3 days)
Conference and 1 day of tutorials
(4 days)
Conference and 2 days of tutorials
(5 days)
Tutorials
(2 days)
Tutorials
(1 day)
before Dec 21th $1,495 $2,290 $2,695 $1,295 $795
before Jan 18th $1,595 $2,390 $2,795 $1,295 $795
before Feb 15th $1,695 $2,490 $2,895 $1,295 $795
before Mar 15th $1,795 $2,590 $2,995 $1,295 $795
before Apr 19th $1,895 $2,690 $3,095 $1,295 $795
before May 17th $1,995 $2,790 $3,195 $1,295 $795
before Jun 9th $2,195 $2,990 $3,395 $1,295 $795
after June 9th pay full price $2,395 $3,190 $3,595 $1,295 $795
The VAT is included for European attendees. It is not possible to combine different price reductions.

What is Included in the 3-Day QCon Conference Pass?

  • Access to over 90 presentations and over 100 speakers (including the co-located OSGi tracks & tutorials)
  • Next-day access to video of most sessions
  • Conference dinner & networking social
  • Evening networking reception with drinks all 3 nights
  • Open Spaces facilitated peer sharing meetings in each track
  • Buffet lunch all 3 days with vegan/vegetarian/gluten/dairy free options

Select Ticket(s)

Registration Type Price Quantity
Conference 3 days + 2 Tutorial days
$2995.00
Conference 3 days + 1 Tutorial day
$2590.00
Conference 3 days
$1795.00
Tutorials (2 days)
$1295.00
Tutorials (1 day)
$795.00

What is Included in the QCon Tutorial Passes?

  • Choice of 14 to 28 tutorials on Monday & Tuesday (the exact number depends on the mix of half-day and full-day tutorials)
  • Half-day tutorials include 3 hours, full-day tutorials include 6 hours of educational content
  • Pre-event tutorial registration to make your selection
  • Breakfast & lunch