Dynatrace

SEPTEMBER 13, 2023

This is a set of best practices and guidelines that help you design and operate reliable, secure, efficient, cost-effective, and sustainable systems in the cloud. For example, optimizing resource utilization for greater scale and lower cost and driving insights to increase adoption of cloud-native serverless services.

AWS 246

AWS Efficiency Azure Cloud 246

Dynatrace

MARCH 16, 2023

Monitors signals The first attribute of a good SLO is the ability to monitor the four “golden signals”: latency, traffic, error rates, and resource saturation. In practice, however, SLOs’ value varies significantly based on how teams design, deploy, and manage them.

DevOps 214

DevOps Latency Metrics Traffic 214

The Netflix TechBlog

MARCH 10, 2023

This feature support required a significant update in the data table design (which includes new tables and updating existing table columns). Data Sharding strategy in elasticsearch is updated to provide low search latency (as described in blog post) Design of new Cassandra reverse indices to support different sets of queries.

Media 237

Media Traffic Processing Design 237

Dynatrace

FEBRUARY 2, 2022

For example, the IT team of a bank wants to ensure that for a trailing 30-day period there is 99.9% service availability with <50ms latency for an application with no revenue impact. To avoid this, start the SLO discussion early in the design process. Let’s take service availability for example.

DevOps 196

DevOps Metrics Best Practices Latency 196

The Netflix TechBlog

JUNE 4, 2019

Because microprocessors are so fast, computer architecture design has evolved towards adding various levels of caching between compute units and the main memory, in order to hide the latency of bringing the bits to the brains. As an illustrative example, let’s consider a toy instance of 16 hyperthreads.

Cache 251

Cache Latency Airlines Logistics 251

The Netflix TechBlog

SEPTEMBER 8, 2020

As an example, to render the screen shown here, the app sends a query that looks like this: paths: ["videos", 80154610, "detail"] A path starts from a root object , and is followed by a sequence of keys that we want to retrieve the data for.

Latency 233

Latency Cache Java Traffic 233

CSS Wizardry

MAY 31, 2019

A classic example is jQuery, that we might link to like so: There are a number of perceived benefits to doing this, but my aim later in this article is to either debunk these claims, or show how other costs vastly outweigh them. I’m going to use an example taken straight from Bootstrap’s own Getting Started. What Am I Talking About?

Cache 274

Cache Latency Infrastructure Website 274

Dynatrace

DECEMBER 2, 2021

For example, an SLA between a web host provider and customer can guarantee 99.95% uptime for all web services of a company over a year. For example, if the SLA for a website is 99.95% uptime, its corresponding SLO could be 99.95% availability of the login services. For example, if your SLO guarantees 99.5% What are SLOs?

Metrics 191

Metrics Best Practices DevOps Infrastructure 191

The Netflix TechBlog

AUGUST 30, 2021

For example, when running tests, the state of the device will change from “available for testing” to “in test.” Build a Spring @Configuration class that autowires the KafkaProperties bean injected by the Netflix Spring runtime and, using the Kafka settings available from that bean, construct an Alpakka-Kafka ConsumerSettings bean.

Latency 213

Latency Traffic Transportation Hardware 213

Dynatrace

APRIL 5, 2021

This is where Lambda comes in: Developers can deploy programs with no concern for the underlying hardware, connecting to services in the broader ecosystem, creating APIs, preparing data, or sending push notifications directly in the cloud, to list just a few examples. Some common examples include: A request through API Gateway or Amplify.

Lambda 180

Lambda AWS Serverless Hardware 180

Dynatrace

APRIL 26, 2022

DEM provides an outside-in approach to user monitoring that measures user experience (UX) in real time to ensure applications and services are available, functional, and well-performing across all channels of the digital experience, including web, mobile, and IoT.

Monitoring 203

Monitoring Social Media IoT Metrics 203

IO River

NOVEMBER 2, 2023

Five Nines availability or 99.999%, also referred to as "the gold standard" significantly reduces downtime (5.26 The Four Pillars of CDN Design‍CDN architecture can be broken down into several building blocks, known as the Four Pillars of CDN Design. Here are a few examples.

Architecture 52

Architecture Cache Performance Latency 52

CSS Wizardry

MAY 19, 2020

Their ability to serve the tiniest possible font files tailored to specific user agents and platforms is amazing, and with such a huge, freely-available library served from Google-grade CDNs… I definitely see why people continue to turn to it. On a high-latency connection, this spells bad news. Let’s see what happens.

Google 364

Google Media Latency Metrics 364

The Morning Paper

JANUARY 30, 2020

Edge servers are the middle ground – more compute power than a mobile device, but with latency of just a few ms. The kind of edge server envisaged here might, for example, be integrated with your WiFi access point. One example from the paper is an application using the ammo.js Why would we want to live migrate web workers?

Mobile 104

Mobile Cloud Latency Games 104

The Netflix TechBlog

NOVEMBER 22, 2019

December 2 1pm-2pm CMP 326-R Capacity Management Made Easy with Amazon EC2 Auto Scaling Vadim Filanovsky , Senior Performance Engineer & Anoop Kapoor, AWS Abstract :Amazon EC2 Auto Scaling offers a hands-free capacity management experience to help customers maintain a healthy fleet, improve application availability, and reduce costs.

AWS 100

AWS Entertainment Open Source Benchmarking 100

The Netflix TechBlog

NOVEMBER 22, 2019

December 2 1pm-2pm CMP 326-R Capacity Management Made Easy with Amazon EC2 Auto Scaling Vadim Filanovsky , Senior Performance Engineer & Anoop Kapoor, AWS Abstract :Amazon EC2 Auto Scaling offers a hands-free capacity management experience to help customers maintain a healthy fleet, improve application availability, and reduce costs.

AWS 100

AWS Entertainment Open Source Benchmarking 100

All Things Distributed

NOVEMBER 12, 2018

Today, I'm happy to announce that the AWS GovCloud (US-East) Region, our 19th global infrastructure Region, is now available for use by customers in the US. 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

Dynatrace

SEPTEMBER 30, 2021

Cloud migration is the process of transferring some or all your data, software, and operations to a cloud-based computing environment that offers unlimited scale and high availability. For example, as traffic increases, costs will too. Improved performance and availability. Establish a clear set of goals and outcomes.

Cloud 165

Cloud Traffic Best Practices Strategy 165

The Morning Paper

OCTOBER 11, 2020

The CubeSat form-factor limits what can be packed into the device and how much power is available. This results in peak available power of about 7.1W. Orbital Edge Computing (OEC) is designed to do just that. Close-spaced constellation have much lower effective bandwidth, but also much lower latency.

Systems 125

Systems Latency Architecture Energy 125

The Morning Paper

OCTOBER 6, 2019

Prediction serving latency matters. There is a lot of rich information available regarding accommodations, which can be overwhelming for users. For example, a model indicating how flexible a user is with respect to the destination of their trip. Lesson 4: prediction serving latency matters. Different types of model.

Latency 102

Latency Metrics Cache Design 102

Scalegrid

JUNE 18, 2019

for this example. The Ruby version used in both the examples below is 2.6.3. The connection options available for the driver are documented here , and the options we will need are: :ssl. servers.mongodirector.com:27017,SG-example-17027.servers.mongodirector.com:27017,SG-example-17028.servers.mongodirector.com:27017/test?

C++ 100

C++ Servers Database Network 100

Smashing Magazine

AUGUST 3, 2021

Lots can go wrong: a network request fails, a third-party library breaks, a JavaScript feature is unsupported (assuming JavaScript is even available), a CDN goes down, a user behaves unexpectedly (they double-click a submit button), the list goes on. On design systems, CSS/JS and UX. An example of primary versus secondary information.

Network 145

Network Engineering Availability Monitoring 145

All Things Distributed

NOVEMBER 26, 2013

As I discussed in my re:Invent keynote earlier this month, I am now happy to announce the immediate availability of Amazon RDS Cross Region Read Replicas , which is another important enhancement for our customers using or planning to use multiple AWS Regions to deploy their applications. Cross Region Read Replicas are available for MySQL 5.6

Cloud 145

Cloud AWS Traffic Latency 145

Smashing Magazine

NOVEMBER 8, 2021

As developers, we rightfully obsess about the customer experience, relentlessly working to squeeze every millisecond out of the critical rendering path, optimize input latency, and eliminate jank. Surveying the existing landscape of available developer tools and runtimes, we felt that there is a gap. Ilya Grigorik. More after jump!

Cache 135

Cache Best Practices Strategy Servers 135

Dynatrace

JUNE 25, 2020

Dynatrace Managed is intrinsically highly available as it stores three copies of all events, user sessions, and metrics across its cluster nodes. For example, in a three-node cluster, one node can go down; in a cluster with five or more nodes, two nodes can go down. Turnkey high availability across globally distributed data centers.

Availability 247

Availability Hardware Latency Traffic 247

Brendan Gregg

AUGUST 18, 2019

For example, iostat(1), or a monitoring agent, may tell you your average disk latency, but not the distribution of this latency. This example instrumented one of many thousands of available events. For smaller environments, it can be of more use helping eliminate latency outliers. For example: # biolatency.bt

Latency 68

Latency C++ Cache Programming 68

The Morning Paper

JUNE 13, 2019

As we saw with the SOAP paper last time out, even with a fixed model variant and hardware there are a lot of different ways to map a training workload over the available hardware. The following figure highlights how just one of these variables, batch size, impacts throughput and latency on ResNet50. The paper is silent on this issue.

Hardware 58

Hardware Latency Serverless Energy 58

ScaleOut Software

JULY 21, 2020

Designed to help scalable applications deliver high performance, it stores live, fast-changing data in memory (DRAM) for fast updates and retrieval. From its inception, the design philosophy behind ScaleOut StateServer has been to simultaneously maximize both performance and ease of use. In-Memory Data Grids for Fast-Changing Data.

Analytics 52

Analytics Airlines Cache Scalability 52

ScaleOut Software

JULY 21, 2020

Designed to help scalable applications deliver high performance, it stores live, fast-changing data in memory (DRAM) for fast updates and retrieval. From its inception, the design philosophy behind ScaleOut StateServer has been to simultaneously maximize both performance and ease of use. In-Memory Data Grids for Fast-Changing Data.

Analytics 52

Analytics Airlines Cache Scalability 52

All Things Distributed

APRIL 17, 2013

While DynamoDB already allows you to perform low-latency queries based on your tableâ??s This gives you the ability to perform richer queries while still meeting the low-latency demands of responsive, scalable applications. s scalability, availability, resilience, low cost and minimal operational overhead. As an example, letâ??s

Cloud 114

Cloud Latency Games Scalability 114

ScaleOut Software

APRIL 6, 2021

Because it runs on a scalable, highly available in-memory computing platform, it can do all this simultaneously for hundreds of thousands or even millions of data sources. For example, consider some of the new capabilities that real-time digital twins can provide in fleet telematics and vaccine distribution during COVID-19.

IoT 52

IoT Azure Analytics Healthcare 52

HammerDB

OCTOBER 23, 2023

HammerDB has always used stored procedures as a design decision because the original benchmark was implemented as close as possible to the example workload in the TPC-C specification that uses stored procedures. As an example from the TPC-C specification, this is the Stock Level procedure. On MySQL, we saw a 1.5X

Benchmarking 62

Benchmarking Database Network C++ 62

Testsigma

JANUARY 30, 2021

The applications are designed using the same code base as Desktop like HTML, Javascript, and CSS. Unlike Native Applications, Mobile web applications do not have to be designed separately for IOS and Android. Example of such apps: We all are aware of how online shopping has taken over the world. What are Native Applications?

Mobile 52

Mobile Testing Website Internet 52

Dotcom-Montior

NOVEMBER 16, 2021

For example, ensuring maximum reliability may come at the cost of being able to more rapidly deploy future services. For example, if your SLO states that your uptime must be 99.9%, the actual SLI must meet or exceed that performance metric in order meet that specific SLO. However, there are tradeoffs that need to be considered.

Monitoring 91

Monitoring Google DevOps Engineering 91

The Morning Paper

SEPTEMBER 1, 2019

At the end of the day, you get the dual benefit of higher throughput and lower latency (as compared to coordination-based approaches) coupled with knowing that there isn’t some nasty invariant-violating concurrency bug waiting to bite you (so long as you specified your invariants and operation effects correctly of course!).

Database 42

Database Latency Games Design 42

Testsigma

AUGUST 24, 2020

If products are not designed, keeping testability in mind, achieving continuous testing may become a distant dream. Maintaining test data in a central repository and then accessing it from different test environments may ease this problem but may introduce other issues like network latency in tests. Not always!

Testing 69

Testing Open Source Scalability Latency 69

CSS Wizardry

OCTOBER 16, 2023

What is the availability, configurability, and efficacy of each? ?️ Plotted on the same horizontal axis of 1.6s, the waterfalls speak for themselves: 201ms of cumulative latency; 109ms of cumulative download. 4,362ms of cumulative latency; 240ms of cumulative download. And do any of our previous decisions dictate our options?

Cache 291

Cache Latency Strategy Speed 291