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

All Things Distributed

JUNE 20, 2017

The new AWS Asia Pacific (Hong Kong) Region will have three Availability Zones and be ready for customers for use in 2018. This enables customers to serve content to their end users with low latency, giving them the best application experience. Over the past decade, we have seen tremendous growth at AWS.

AWS 149

AWS Logistics Cloud Social Media 149

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

Alex Russell

JANUARY 30, 2024

Many critiques are possible, both of the target (five seconds for first load), the sample population (worldwide internet users), and of the methodology (informed reckons). Emerging markets with high mobile internet use and dense populations can feature poor fixed-line broadband penetration compared with Western markets. In the U.S.,

Performance 90

Performance Network Mobile Speed 90

KeyCDN

OCTOBER 24, 2018

Although both countries are relatively close to one another, they are separated by a distance of approximately 500km, which adds up in terms of latency. As of August 2018, Helsinki alone had a population of almost 650,000 people. million Internet users in Finland resulting in a 92.5% of the population were Internet users.

Internet 48

Internet Internet Speed Network 48

Smashing Magazine

OCTOBER 31, 2023

The truth is that the two tools were fairly distinct until PSI was updated in 2018 to use Lighthouse reporting. Chrome DevTools includes a separate “Performance” tab where the testing environment’s CPU and network connection can be artificially throttled to mirror a specific testing condition, such as slow internet speeds.

Speed 97

Speed Google Website Metrics 97

ACM Sigarch

MARCH 18, 2019

Computer systems, from the Internet-of-Things devices to datacenters, are complex and optimizing them can enhance capability and save money. How many buffers are needed to track pending requests as a function of needed bandwidth and expected latency? Can one both minimize latency and maximize throughput for unscheduled work?

Systems 60

Systems Latency Performance Analytics 60

Testsigma

FEBRUARY 12, 2021

The Internet of Things is generally referred to as IoT which encompasses computers, cars, houses or some other technological system related. Gartner stated that Artificial Intelligence computing resources are to expand by 5 times between 2018 and 2023. By 2025, the person who orders the product will first be the person who touches it.

Artificial Intelligence 92

Artificial Intelligence Software Software IoT 92

High Scalability

JULY 20, 2018

A typical example of modern "microservices-inspired" Java application would function along these lines: Netflix : We observed during experimentation that RAM random read latencies were rarely higher than 1 microsecond whereas typical SSD random read speeds are between 100–500 microseconds. There are a few more quotes.

Internet 121

Internet Internet Scalability Automotive 121

High Scalability

DECEMBER 21, 2018

Tim Bray : How to talk about [Serverless Latency] · To start with, don’t just say “I need 120ms.” Don't miss all that the Internet has to say on Scalability, click below and become eventually consistent with all scalability knowledge (which means this post has many more items to read so please keep on reading).

Internet 137

Internet Internet Scalability Serverless 137

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). After years of standards discussion and the first delivered to other platforms in 2018, iOS 14.5 Converging Views. Pointer Lock.

Media 145

Media Games Education Engineering 145

High Scalability

SEPTEMBER 14, 2018

SCM slots between DRAM and flash in terms of latency, cost, and density. dr_c0d3 : 2000: Write 100s of lines of XML to "declaratively" configure your servlets and EJBs 2018: Write 100s of lines of YAML to "declaratively" configure your microservices At least XML had schemas. sethearley : 7 areas of opportunity for #AI in teaching.

Internet 30

Internet Internet Scalability Education 30

All Things Distributed

APRIL 4, 2017

The new AWS EU (Stockholm) Region will have three Availability Zones and will be ready for customers to use in 2018. This enables customers to serve content to their end users with low latency, giving them the best application experience. Over the past decade, we have seen tremendous growth at AWS.

AWS 117

AWS Airlines Latency Games 117

Smashing Magazine

JANUARY 7, 2019

Estimated Input Latency tells us if we are hitting that threshold, and ideally, it should be below 50ms. In 2018, the Alliance of Open Media has released a new promising video format called AV1. Thus, it "hides" latency (both in the network and on the server) from clients. AV1 has compression similar to H.265 Same with Etag.

Performance 103

Performance Cache Metrics Network 103

High Scalability

JANUARY 24, 2019

For the first time in history, a VC-backed startup in 2018 was more likely to sell to a PE buyer than a fellow VC-backed company. TServerless : We sat with a solution architect, apparently they are aware of the latency issue and suggested to ditch api gw and build our own solution. 10% : Netflix captured screen time in US; 8.3

Internet 29

Internet Internet Scalability Games 29

Smashing Magazine

JANUARY 6, 2020

Globally in 2018–2019, according to the IDC, 87% of all shipped mobile phones are Android devices. Estimated Input Latency tells us if we are hitting that threshold, and ideally, it should be below 50ms. In 2018, the Alliance of Open Media has released a new promising video format called AV1. 265 codec (the evolution of H.264)

Performance 145

Performance Cache Network Metrics 145

Smashing Magazine

JANUARY 11, 2021

Estimated Input Latency tells us if we are hitting that threshold, and ideally, it should be below 50ms. Designed for the modern web, it responds to actual congestion, rather than packet loss like TCP does, it is significantly faster , with higher throughput and lower latency — and the algorithm works differently.

Performance 145

Performance Cache Media Metrics 145