Dynatrace

JUNE 25, 2020

The network latency between cluster nodes should be around 10 ms or less. For Premium HA, this has been extended from 10 ms latency (in the same network region) to around 100 ms network latency due to asynchronous data replication between regions. In the image below, three downed nodes make an entire cluster unavailable.

Availability 244

Availability Hardware Latency Traffic 244

KeyCDN

NOVEMBER 4, 2021

The POP is strategially located within the country and lowers latency overall. KeyCDN is always on the lookout for ways to minimize latency and accelerate asset delivery worldwide. Hola Mexico! We've launched our new point of presence (POP) in Mexico City.

Latency 111

Latency Tuning Cache Traffic 111

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. Clone Disk],” [link] , 2020 [Moore 20] Samuel K. Ford, et al., “TCP

Performance 52

Performance Latency Cache Virtualization 52

Smashing Magazine

JANUARY 6, 2020

Front-End Performance Checklist 2020 [PDF, Apple Pages, MS Word]. Front-End Performance Checklist 2020 [PDF, Apple Pages, MS Word]. 2020-01-06T10:30:13+00:00. 2020-01-06T12:35:48+00:00. New metrics landing in Lighthouse v6 in early 2020. Vitaly Friedman. Web performance is a tricky beast, isn’t it? Large view.

Performance 145

Performance Cache Network Metrics 145

The Netflix TechBlog

MAY 14, 2021

We are expected to process 1,000 watermarks for a single distribution in a minute, with non-linear latency growth as the number of watermarks increases. The goal is to process these documents as fast as possible and reliably deliver them to recipients while offering strong observability to both our users and internal teams.

Traffic 160

Traffic Latency Java Google 160

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

KeyCDN

NOVEMBER 29, 2022

KeyCDN is always looking for ways to minimize latency and accelerate the delivery of assets worldwide. So far, we could cover Latin America through Mexico City, Santiago, and São Paulo. Now Buenos Aires and Bogotá have been added.

Latency 60

Latency Tuning Cache Traffic 60

Dynatrace

FEBRUARY 24, 2021

The events of 2020 accelerated the trend of organizations shifting to cloud-native technologies in response to the dramatic increase in demand for online services. Reduced latency. Dynatrace news. Cloud-native environments bring speed and agility to software development and operations (DevOps) practices. Efficiency.

DevOps 186

DevOps Software Engineering Speed Google 186

CSS - Tricks

MARCH 16, 2020

To stop reports from different websites getting mixed up, we’ll organize them like so: lukeharrison.dev 2020-01-31T18:18:12.648Z.json 2020-01-31T19:10:24.110Z.json cnn.com 2020-01-14T22:15:10.396Z.json lh.js. If your latency is higher than 50ms, users may perceive your app as laggy. Creating the directory. native module.

Google 82

Google Latency Website Metrics 82

CSS - Tricks

DECEMBER 14, 2020

And there’s an enormous wealth of information about how the web changed in 2020. While this is suboptimal on desktop, it really kills performance on mobile, where round-trip latency is more important than raw download speed. In fact, this report is more like an enormous book and it’s entirely fabulous.

Latency 98

Latency Mobile Website Speed 98

Testsigma

FEBRUARY 12, 2021

And is projected to rise by more than 6 percent at CAGR(Compound Annual Growth Rate) between 2020 and 2026? Presently we know it is far from easy to forecast the future – all of us have discovered this in 2020 through major ups and downs. Gartner’s 2020 projections first included the trend of hyperautomation.

Artificial Intelligence 92

Artificial Intelligence Software Software IoT 92

Percona

MAY 2, 2023

This blog was originally published in September 2020 and was updated in May 2023. test.collG 1533/195563 (0.8%) Aug 19 08:48:09 ip-172-30-2-122 pbm-agent[24331]: 2020/08/19 08:48:09 [####################.] test.collF 116432/134747 (86.4%) Aug 19 10:01:09 ip-172-30-2-122 pbm-agent[24331]: 2020/08/19 10:01:09 [#######################.]

Best Practices 52

Best Practices Database Storage Servers 52

CSS Wizardry

MAY 19, 2020

pic.twitter.com/k6obyVZGZP — Harry Roberts (@csswizardry) 11 May, 2020. On a high-latency connection, this spells bad news. However, the execution of this header is bound by the response’s TTFB, which on high-latency networks can be very, very high. Put another-other way, this file is latency-bound, not bandwidth-bound.

Google 364

Google Media Latency Metrics 364

Brendan Gregg

MAY 8, 2021

From these outputs I try to determine if the problem is: - **The workload**: High-latency disk I/O is commonly caused by the workload applied. Rotational disks have extra latency from head seeks for random I/O, and spin ups from the idle state. Note the sdb latencies range from 32 ms to over 2 seconds! Linux 4.15.0-66-generic

Performance 142

Performance Latency Speed Systems 142

Dynatrace

DECEMBER 22, 2019

The example below visualizes average latency by API name and stage for a specific AWS API Gateway. Stay tuned for updates in Q1 2020. You can observe the metrics across service instances split by region (in this example, API Gateways in us-east-1 and us-east-2 ). You can also create custom charts. Requirements. AWS supporting services.

AWS 135

AWS Metrics IoT Storage 135

Dynatrace

DECEMBER 22, 2019

The example below visualizes average latency by API name and stage for a specific AWS API Gateway. Stay tuned for updates in Q1 2020. You can observe the metrics across service instances split by region (in this example, API Gateways in us-east-1 and us-east-2 ). You can also create custom charts. Requirements. AWS supporting services.

AWS 132

AWS Metrics IoT Storage 132

All Things Distributed

NOVEMBER 12, 2018

With this launch, AWS now provides 57 Availability Zones, with another 12 zones and four Regions in Bahrain, Cape Town, Hong Kong SAR, and Stockholm expected to come online by 2020.

AWS 117

AWS Healthcare Cloud Government 117

Speed Curve

MARCH 11, 2024

Way back in 2020, Cliff Crocker took a closer look at First Input Delay and found that FID did not meaningfully correlate with actual user behaviour. One of the biggest culprits: latency, which is typically worse on mobile. Here at SpeedCurve, we definitely get excited about emerging metrics. Does INP correlate to user behaviour?

Mobile 82

Mobile Google Metrics Monitoring 82

The Morning Paper

FEBRUARY 6, 2020

arXiv 2020. On the Cloudburst design teams’ wish list: A running function’s ‘hot’ data should be kept physically nearby for low-latency access. A low-latency autoscaling KVS can serve as both global storage and a DHT-like overlay network. Cloudburst: stateful functions-as-a-service , Sreekanti et al.,

Lambda 98

Lambda Serverless Cache Latency 98

High Scalability

JANUARY 24, 2020

Solves compute, latency, and interop. It's HighScalability time: Instead of turning every car into rolling sensor studded supercomputers, roads could be festooned with stationary edge command and control pods for offloading compute, sensing and managing traffic. Cars become mostly remote controlled pleasure palaces.

Internet 36

Internet Internet Scalability Latency 36

The Morning Paper

NOVEMBER 8, 2020

Facebook, Inc. ), OSDI’2020. The initial version of Delos went into production after eight months using a ZooKeeper-backed Loglet implementation, and then four months later it was swapped out for a new custom-built NativeLoglet that gave a 10x improvement in end-to-end latency. Virtual consensus in Delos , Balakrishnan et al.

Virtualization 126

Virtualization Latency Storage Systems 126

The Netflix TechBlog

NOVEMBER 2, 2020

Those two metrics are approximate indicators of failures and latency. In 2020, days after the implementation was deployed, the team started seeing the benefit of the solution. Service throttling Zuul can sense when a back-end service is in trouble by monitoring the error rates and concurrent requests to that service.

Traffic 252

Traffic Metrics Infrastructure Architecture 252

Smashing Magazine

MARCH 25, 2021

The same sentiment was conveyed by Conviva’s Q4 2020 State of Streaming (registration required), which noted that mobile phones saw 20% more buffering issues , a 19% higher video-start failure and 5% longer start-time than other devices. Similarly, unoptimized images were the leading cause of page bloat. Deliver through multiple CDNs.

Media 117

Media Performance Mobile Latency 117

Sutter's Mill

SEPTEMBER 11, 2020

It’s hard to believe CppCon 2020 is nearly here… in fact, pre-conference tutorials are already in progress. I’ll be at the conference throughout the week in the hallways and session rooms. Here are some of the times I’ll be participating on the actual program: Sunday 1300 MDT: Organizer’s Panel.

C++ 65

C++ Games Latency Programming 65

Brendan Gregg

JULY 2, 2021

biolatency Disk I/O latency histogram heat map. runqlat CPU scheduler latency heat map. Here are the top ten tools you can run and present as a generic BPF observability dashboard, along with suggested visualizations: Tool Shows Visualization. execsnoop New processes (via exec(2)) table. opensnoop Files opened table.

Latency 145

Latency Cache Energy Systems 145

All Things Distributed

NOVEMBER 13, 2018

The AWS Europe (Milan) Region will have three Availability Zones and be ready for customers in early 2020. It's the sixth AWS Region in Europe, joining existing regions in France, Germany, Ireland, the UK, and the new Region that we recently announced in Sweden.

AWS 167

AWS Energy Automotive Traffic 167

Alex Russell

MARCH 6, 2021

twitter.com/slightlylate/status/1139684093602349056 455 06:18 AM · Feb 28, 2020. A silver lining on this dark cloud is that mobile JavaScript payload growth paused in 2020. Sadly, data on latency is harder to get, even from Google's perch, so progress there is somewhat more difficult to judge. How bad is it?

Performance 124

Performance Network Cache Metrics 124

O'Reilly

DECEMBER 2, 2019

For applications like communication between AVs, latency–how long it takes to get a response–is more likely to be a bigger limitation than raw bandwidth, and is subject to limits imposed by physics. There are impressive estimates for latency for 5G, but reality has a tendency to be harsh on such predictions.

Wireless 53

Wireless Serverless IoT Artificial Intelligence 53

All Things Distributed

OCTOBER 25, 2018

It is our first Region in Africa, and we're shooting to have it ready in the first half of 2020. The new AWS Africa (Cape Town) Region will have three Availability Zones and provide lower latency to end users across Sub-Saharan Africa.

AWS 167

AWS Cloud Education Programming 167

Smashing Magazine

AUGUST 3, 2023

It was only in 2020, though, that Google shared its concept of Core Web Vitals and how it impacts SEO efforts. This proximity significantly reduces the time it takes for the data to travel from the server to the user, thus reducing latency and improving load times. Bookaway site search. Time to First Byte over time. LCP in seconds.

Performance 74

Performance Cache Traffic Metrics 74

Alex Russell

JANUARY 30, 2024

Test Device Recommendations # Re-using last year's P75 device calculus , our estimate is based on a device sold new, unlocked for the mid-2020 to mid-2021 global ASP of ~$350-375. If you or your company are able to generate a credible worldwide latency estimate in the higher percentiles for next year's update, please get in touch.

Performance 90

Performance Network Mobile Speed 90

All Things Distributed

DECEMBER 12, 2018

With this launch, AWS now provides 60 Availability Zones, with another 12 zones and four Regions expected to come online by 2020 in Bahrain, Cape Town, Hong Kong, and Milan. Starting today, developers, startups, and enterprises—as well as government, education, and non-profit organizations—can use the new AWS Europe (Stockholm) Region.

AWS 124

AWS Cloud Games Serverless 124

Brendan Gregg

MAY 8, 2021

From these outputs I try to determine if the problem is: - **The workload**: High-latency disk I/O is commonly caused by the workload applied. Rotational disks have extra latency from head seeks for random I/O, and spin ups from the idle state. The latencies here look like they are a mix of normal speed (~1.9 Hit Ctrl-C to end.

Performance 40

Performance Latency Speed Systems 40

Brendan Gregg

MAY 8, 2021

From these outputs I try to determine if the problem is: - **The workload**: High-latency disk I/O is commonly caused by the workload applied. Rotational disks have extra latency from head seeks for random I/O, and spin ups from the idle state. Note the sdb latencies range from 32 ms to over 2 seconds! Linux 4.15.0-66-generic

Performance 40

Performance Latency Speed Systems 40

All Things Distributed

OCTOBER 31, 2019

The new AWS Europe (Spain)Region will consist of three Availability Zones (AZs) at launch, and will be AWS's seventh region in Europe, joining existing regions in Dublin, Frankfurt, London, Paris, Stockholm, and the upcoming Milan region launching in early 2020.

AWS 29

AWS Education Government Latency 29

IO River

NOVEMBER 2, 2023

July 2020, Twitter experienced a significant outage that lasted for several hours, rendering the platform inaccessible to millions of users worldwide. Proactive monitoring aids in detecting performance bottlenecks, latency difficulties, and other anomalies that may influence availability.

Availability 52

Availability Social Media Traffic Games 52

IO River

NOVEMBER 2, 2023

July 2020, Twitter experienced a significant outage that lasted for several hours, rendering the platform inaccessible to millions of users worldwide. Proactive monitoring aids in detecting performance bottlenecks, latency difficulties, and other anomalies that may influence availability.

Availability 52

Availability Social Media Traffic Games 52