Understanding Latency: Pitfalls, Lessons and Tools - Philly ETE 2014

Explore the intricacies of application responsiveness and latency in this comprehensive conference talk from Philly ETE 2014. Delve into common pitfalls, false assumptions, and problematic measurement techniques that can lead to incorrect reporting results. Learn how to identify and work around the coordinated data omission problem, and discover recently open-sourced tools for improving latency measurement and reporting. Gain insights into human response time, load vs. response time relationships, and the concept of hiccups in system performance. Examine real-world examples, pass-fail tests, and sustainable throughput considerations. Investigate advanced topics such as HDR Histograms, linear histograms, and constant size data structures to enhance your understanding of latency analysis and optimization.

Intro
Gils background
Latency behavior
Warming exercise
Latency wishful thinking
Mean and standard deviation
Human response time
Intuition
Load vs Response Time
Hiccups
What can we do
True story
What can you do
Passfail test
Requirements
How often
Not sustainable throughput
Comparing Sis
Coordinated Emission Problem
Perfect System Example
Statistics
Coordinate Admission
Bad is Bad
JMeter
CSP
Vertical Rises
Quick Suggestions
HDR Histogram
Linear Histograms
HDR Histograms
Constant Size Data Structure