Brendan Gregg

JULY 4, 2021

## References I've reproduced the talk references below, so you can click on links: - [Gregg 08] Brendan Gregg, “ZFS L2ARC,” [link] Jul 2008 - [Gregg 10] Brendan Gregg, “Visualizations for Performance Analysis (and More),” [link] 2010 - [Greenberg 11] Marc Greenberg, “DDR4: Double the speed, double the latency? Ford, et al., “TCP

Performance 140

Performance Latency Hardware Storage 140

Tim Kadlec

JUNE 24, 2014

At Google I/O 2014 , Lara Swanson and Paul Lewis discussed performance culture. Since it’s one of my favorite topics, I decided to share my notes: 34% of US adults use a smartphone as their primary means of internet access. Mobile networks add a tremendous amount of latency. We are not our end users.

Google 49

Google Performance Latency Internet 49

Brendan Gregg

FEBRUARY 28, 2023

My personal opinion is that I don't see a widespread need for more capacity given horizontal scaling and servers that can already exceed 1 Tbyte of DRAM; bandwidth is also helpful, but I'd be concerned about the increased latency for adding a hop to more memory. Ford, et al., “TCP

Performance 110

Performance Latency Cache Virtualization 110

Brendan Gregg

FEBRUARY 28, 2023

My personal opinion is that I don't see a widespread need for more capacity given horizontal scaling and servers that can already exceed 1 Tbyte of DRAM; bandwidth is also helpful, but I'd be concerned about the increased latency for adding a hop to more memory. Ford, et al., “TCP

Performance 52

Performance Latency Cache Virtualization 52

Brendan Gregg

JULY 4, 2021

## References I've reproduced the talk references below, so you can click on links: - [Gregg 08] Brendan Gregg, “ZFS L2ARC,” [link] Jul 2008 - [Gregg 10] Brendan Gregg, “Visualizations for Performance Analysis (and More),” [link] 2010 - [Greenberg 11] Marc Greenberg, “DDR4: Double the speed, double the latency? Ford, et al., “TCP

Performance 52

Performance Latency Hardware Storage 52

MachMetrics

JUNE 16, 2020

In a vacuum, an SSL certificate does add some additional latency, as it requires 2 extra round trips to establish a secure connection before sending any data to the browser. Secondly, SSL/HTTPS unlocks additional web performance benefits that more than make up for the added latency. Source: Google Blog.

Speed 86

Speed Latency Google Website 86

Alex Russell

APRIL 29, 2021

In almost every area, Apple's low-quality implementation of features WebKit already supports requires workarounds not necessary for Firefox (Gecko) or Chrome/Edge/Brave/Samsung Internet (Blink). Delayed three years ( Chrome 40, November 2014 vs. Safari 11.1, This adds to the expense of developing for iOS. Converging Views.

Media 145

Media Games Education Engineering 145