CSS Wizardry

MARCH 3, 2019

The best request is the one that never happens: in the fight for fast websites, avoiding the network is far better than hitting the network at all. — Harry Roberts (@csswizardry) 3 March, 2019. Any asset that carries the no-store directive will always hit the network, no matter what. Now we’d use no-store.

Cache 264

Cache Latency Strategy Servers 264

Tasktop

JUNE 18, 2019

In one week’s time, thousands of IT and business professionals will descend on London for the latest iteration of DevOps Enterprise Summit London 2019 (June 25-27 – InterContinental O2, London, UK). Here are four tips to get the most out of DOES London 2019: Tip #1 – Develop a plan of attack. The countdown is on.

DevOps 74

DevOps Network Software Software 74

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

The Netflix TechBlog

OCTOBER 19, 2020

Reconstructing a streaming session was a tedious and time consuming process that involved tracing all interactions (requests) between the Netflix app, our Content Delivery Network (CDN), and backend microservices. Using simple lookup indices in Cassandra gives us the ability to maintain acceptable read latencies while doing heavy writes.

Infrastructure 233

Infrastructure Transportation Storage Open Source 233

Scalegrid

JUNE 18, 2019

The easiest way to induce failover is to run the rs.stepDown() command: RS-example-0:PRIMARY> rs.stepDown() 2019-04-18T19:44:42.257+0530 E QUERY [thread1] Error: error doing query: failed: network error while attempting to run command 'replSetStepDown' on host 'SG-example-1.servers.mongodirector.com:27017' 27017 (sg-example-17026.servers.mongodirector.com:27017,

C++ 100

C++ Servers Database Network 100

Smashing Magazine

JANUARY 7, 2019

Front-End Performance Checklist 2019 [PDF, Apple Pages, MS Word]. Front-End Performance Checklist 2019 [PDF, Apple Pages, MS Word]. 2019-01-07T12:00:13+00:00. 2019-04-29T18:34:58+00:00. If you don’t have a device at hand, emulate mobile experience on desktop by testing on a throttled network (e.g. Vitaly Friedman.

Performance 103

Performance Cache Metrics Network 103

The Netflix TechBlog

NOVEMBER 22, 2019

In 2019, Netflix moved thousands of container hosts to bare metal. Netflix runs dozens of stateful services on AWS under strict sub-millisecond tail-latency requirements, which brings unique challenges. It launches more than four million containers per week across thousands of underlying hosts.

AWS 37

AWS Entertainment Open Source Benchmarking 37

Brendan Gregg

JULY 4, 2021

AWS Graviton2); for memory with the arrival of DDR5 and High Bandwidth Memory (HBM) on-processor; for storage including new uses for 3D Xpoint as a 3D NAND accelerator; for networking with the rise of QUIC and eXpress Data Path (XDP); and so on. Ford, et al., “TCP

Performance 52

Performance Latency Hardware Storage 52

Alex Russell

MARCH 6, 2021

Thanks to progress in networks and browsers (but not devices), a more generous global budget cap has emerged for sites constructed the "modern" way: ~100KiB of HTML/CSS/fonts and ~300-350KiB of JS (compressed) is the new rule-of-thumb limit for at least the next year or two. Modern network performance and availability.

Performance 124

Performance Network Cache Metrics 124

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

Testsigma

FEBRUARY 12, 2021

Are you aware that the scale of the app testing industry in 2019 was over USD$ 40 billion? In 2019, we had previously projected the demand for IoT research at $781.96billion. 38% of organisations were expected to introduce machine-learning initiatives in 2019, according to the Capgemini World Efficiency survey. billion in 2016.

Artificial Intelligence 92

Artificial Intelligence Software Software IoT 92

KeyCDN

JANUARY 31, 2019

Today we’re excited to announce that we’ve launched yet another POP location to help further supercharge our network’s content delivery speeds. The next closest active POP location to Bucharest was Istanbul which was still almost 900km away; this distance adds up in terms of latency. What’s Next?

Internet 48

Internet Internet Ecommerce Speed 48

All Things Distributed

SEPTEMBER 25, 2017

The Region will be in the heart of Gulf Cooperation Council (GCC) countries, and we're aiming to have it ready by early 2019. This Region will consist of three Availability Zones at launch, and it will provide even lower latency to users across the Middle East. This news marks the 22nd AWS Region we have announced globally.

Cloud 154

Cloud Education Energy Government 154

The Morning Paper

JANUARY 26, 2020

This week we’ll be looking at a selection of papers from the 2019 edition of the ACM Symposium of Cloud Computing ( SoCC ). If the edit creates a new, unlogged network request, then the replay framework must inject new network events into the log. candidate bug-fixes) during replay.

Programming 86

Programming Servers Network Latency 86

The Morning Paper

JULY 4, 2019

degraded hardware, transient networking problem) or, more often, because of some change deployed by Netflix engineers that did not have the intended effect. Two failure modes we focus on are a service becoming slower (increase in response latency) or a service failing outright (returning errors).

Latency 77

Latency Engineering Metrics Traffic 77

O'Reilly

DECEMBER 2, 2019

The most obvious change 5G might bring about isn’t to cell phones but to local networks, whether at home or in the office. High-speed networks through 5G may represent the next generation of cord cutting. Those waits can be significant, even if you’re on a corporate network. What will 5G mean in practice? I don’t, do you?

Wireless 53

Wireless Serverless IoT Artificial Intelligence 53

Dynatrace

JANUARY 15, 2020

Having released this functionality in an Preview Release back in September 2019, we’re now happy to announce the General Availability of our Citrix monitoring extension. Citrix platform performance—optimize your Citrix landscape with insights into user load and screen latency per server. Dynatrace news. Citrix VDA. SAP server.

Latency 36

Latency Performance Virtualization Infrastructure 36

SQL Performance

APRIL 27, 2020

Hyperscale achieves high performance from each compute node having SSD-based caches which helps minimize the network round trips to fetch data. Microsoft took that idea and built a new compute tier called Azure SQL Database serverless, which became generally available in November 2019.

Azure 55

Azure Database Serverless Hardware 55

The Morning Paper

JUNE 30, 2019

Today we’re jumping from HotOS topics of 2019, to hot topics of 1977! In such a situation I’d expect to see unusually high latencies, but normal throughput). The Great Dorset Steam Fair ’), which are a bit like a distributed denial of service attack on the road network as lots of very slow steam engines all converge on a given point.

Traffic 75

Traffic Latency Programming Scalability 75

Enprowess

SEPTEMBER 7, 2021

with its low latency I/O operations, gives the benefit of ‘No buffering’ to developers. Network: Node.js 12.9.0 – August 20, 2019; 16.8.6 – May 6, 2019. Scalability: Applications developed with Node.js can be scaled vertically and horizontally to improve their performance. supports an open-source community.

Open Source 52

Open Source Virtualization Programming Servers 52

Smashing Magazine

APRIL 17, 2019

2019-04-17T12:30:16+02:00. 2019-04-29T18:34:58+00:00. This typically happens once per server and takes up valuable time — especially if the server is very distant from the browser and network latency is high. Optimizing Performance With Resource Hints. Optimizing Performance With Resource Hints. Drew McLellan.

Performance 106

Performance Games Servers Cache 106

KeyCDN

JULY 11, 2019

Using an image CDN, such as KeyCDN, can significantly reduce the latency of your image delivery. Well, according to HTTP Archive , as of June 1, 2019 the average desktop page is 1,896.8 Image Processing Service We offer an image processing service that is fully integrated into our existing network. Mbps ( Opensignal ).

Speed 52

Speed Website Mobile Latency 52

The Morning Paper

SEPTEMBER 12, 2019

The Apache MADLib project is still going strong, and the recent (July 2019) 1.16 A pipeline breaker occurs when the output of one operator must be materialized to disk or transferred over the network, as opposed to being directly communicated from operator to operator via CPU cache, or, in the worst case, via RAM. Experimental results.

Network 44

Network Database Programming Hardware 44

Smashing Magazine

JANUARY 11, 2021

Networking, HTTP/2, HTTP/3 OCSP stapling, EV/DV certificates, packaging, IPv6, QUIC, HTTP/3. If you don’t have a device at hand, emulate mobile experience on desktop by testing on a throttled 3G network (e.g. Estimated Input Latency tells us if we are hitting that threshold, and ideally, it should be below 50ms. 300ms RTT, 1.6

Performance 145

Performance Cache Media Metrics 145

Rigor

JULY 2, 2019

Time spent on redirect is most noticeable on mobile devices, especially since they tend to use slower networks. By adding the need for additional JavaScript resources to your page, you increase the latency caused by the need to first download the webpage and then parse and execute the JavaScript before the browser can execute the redirect.

Mobile 60

Mobile Traffic Google Latency 60

Smashing Magazine

JANUARY 6, 2020

If you don’t have a device at hand, emulate mobile experience on desktop by testing on a throttled 3G network (e.g. To make the performance impact more visible, you could even introduce 2G Tuesdays or set up a throttled 3G/4G network in your office for faster testing. 300ms RTT, 1.6 Mbps down, 0.8

Performance 145

Performance Cache Network Metrics 145

KeyCDN

SEPTEMBER 12, 2019

Well, according to HTTP Archive , as of June 1, 2019 the average desktop page is 1,896.8 An easy way to compress images is with our image processing service that happens to also be fully integrated into our existing network. Image Compression Just how much of a website is made up of images? KB and the average mobile page is 1,683.5

Social Media 106

Social Media Media Google Website 106

KeyCDN

MAY 14, 2019

This new feature is available to all customers, is fully integrated into our existing network, and allows comprehensive on the fly image transformation and optimization. If this setting is enabled our network will completely ignore the query string. We’re thrilled to announce that we’ve added the Image Processing feature!

Processing 13

Processing Cache Latency Network 13

The Netflix TechBlog

NOVEMBER 2, 2020

Failure can occur due to a myriad of reasons: misbehaving clients that trigger a retry storm, an under-scaled service in the backend, a bad deployment, a network blip, or issues with the cloud provider. Those two metrics are approximate indicators of failures and latency. Let’s dig into how we accomplished this.

Traffic 252

Traffic Metrics Infrastructure Architecture 252

All Things Distributed

DECEMBER 12, 2018

They can run applications in Sweden, serve end users across the Nordics with lower latency, and leverage advanced technologies such as containers, serverless computing, and more. We launched Edge Network locations in Denmark, Finland, Norway, and Sweden. Our AWS Europe (Stockholm) Region is open for business now.

AWS 124

AWS Cloud Games Serverless 124

High Scalability

JANUARY 24, 2019

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. Stand under Explain the Cloud Like I'm 10 (35 nearly 5 star reviews). 10% : Netflix captured screen time in US; 8.3 7x : faster PyPy python; 9B : gallons of water/day for lawns; 2.6

Internet 29

Internet Internet Scalability Games 29

O'Reilly

JULY 20, 2021

In 2019, YouTube had to settle with the FTC for a $170 million fine for selling ads targeting children. The concept of Zero Trust Networks speaks to this problem. So far, technology has been great at intermediating people for coordination through systems like text messaging, social networks, and collaborative documents.

Google 122

Google Games Technology Technology 122

Smashing Magazine

SEPTEMBER 29, 2021

Compression achieved is relevant because the higher the compression, the smaller the file size, and the lower the data required to transfer the image on the network. It was released in February 2019 by the Alliance for Open Media (AOMedia). Since its release in 2019, the support for AVIF has increased considerably.

Open Source 144

Open Source Speed Website Google 144