Dynatrace

APRIL 26, 2022

Fast, consistent application delivery creates a positive user experience that can ultimately drive customer loyalty and improve business metrics like conversion rate and user retention. With DEM solutions, organizations can operate over on-premise network infrastructure or private or public cloud SaaS or IaaS offerings.

Monitoring 213

Monitoring Social Media IoT Metrics 213

The Netflix TechBlog

SEPTEMBER 8, 2020

To prepare ourselves for a big change in the tech stack of our endpoint, we decided to track metrics around the time taken to respond to queries. After some consultation with our backend teams, we determined the most effective way to group these metrics were by UI screen.

Latency 233

Latency Cache Java Traffic 233

The Netflix TechBlog

AUGUST 30, 2021

When a new hardware device is connected, the Local Registry detects and collects a set of information about it, such as networking information and ESN. Fault Tolerance If the underlying KafkaConsumer crashes due to ephemeral system or network events, it should be automatically restarted.

Latency 213

Latency Traffic Transportation Hardware 213

The Netflix TechBlog

FEBRUARY 18, 2022

This network connection heterogeneity made choosing a single delivery model difficult. Scaling Policies To address the thundering herd problem and to keep latencies under acceptable thresholds, the cluster scale-up policies are configured to be more aggressive than the scale-down policies.

Systems 334

Systems Traffic Architecture Mobile 334

CSS Wizardry

MAY 19, 2020

It’s widely accepted that self-hosted fonts are the fastest option: same origin means reduced network negotiation, predictable URLs mean we can preload , self-hosted means we can set our own cache-control. For each test, I captured the following metrics: First Paint (FP): To what extent is the critical path affected? Because harry.is

Google 364

Google Media Latency Metrics 364

Alex Russell

DECEMBER 18, 2022

TL;DR : To serve users at the 75 th percentile ( P75 ) of devices and networks, we can now afford ~150KiB of HTML/CSS/fonts and ~300-350KiB of JavaScript (gzipped). This is a slight improvement on last year's budgets , thanks to device and network improvements. This is an ethical crisis for the frontend. 2023 Content Targets #.

Performance 113

Performance Network Mobile Latency 113

Dynatrace

APRIL 5, 2021

Real-time stream processing to perform live activity tracking, data cleansing, metrics generation, and more. You will likely need to write code to integrate systems and handle complex tasks or incoming network requests. AWS continues to improve how it handles latency issues. Where does Lambda fit in the AWS ecosystem?

Lambda 186

Lambda AWS Serverless Hardware 186

Scalegrid

MARCH 14, 2024

When delving into the networking aspect of a hybrid cloud deployment, complexities arise due to the requirement of linking or expanding existing on-premises network architectures into the cloud sphere. We will examine each of these elements in more detail.

Strategy 130

Strategy Cloud Artificial Intelligence Infrastructure 130

Alex Russell

FEBRUARY 28, 2022

The metrics that we report against implicitly cleave these into different "camps", leaving us thinking about pre- and post-load as distinct universes. The chief effect of the architectural difference is to shift the distribution of latency within the loop. Improving latency for one scenario can degrade it in another.

Performance 104

Performance Latency Architecture Network 104

Smashing Magazine

AUGUST 3, 2023

These pages serve as a pivotal tool in our digital marketing strategy, not only providing valuable information about our services but also designed to be easily discoverable through search engines. Google’s Core Web Vitals is a set of performance metrics that site owners can use to evaluate performance and diagnose performance issues.

Performance 74

Performance Cache Traffic Metrics 74

Percona

DECEMBER 26, 2023

This PoC demonstrates how to install and configure pg_stat_monitor in order to extract useful and actionable metrics from a PostgreSQL database and display them on a Grafana dashboard. This allows for much better data accuracy, especially in the case of high-resolution or unreliable networks.

Benchmarking 122

Benchmarking Metrics C++ Database 122

Smashing Magazine

AUGUST 10, 2023

In fact, there’s great tooling right under the hood of most browsers in DevTools that can do many things that a tried-and-true service like WebPageTest offers, complete with recommendations for improving specific metrics. Certain tools are designed for certain metrics with certain assumptions that produce certain results.

Speed 81

Speed Monitoring Testing Network 81

The Netflix TechBlog

OCTOBER 19, 2020

Now let’s look at how we designed the tracing infrastructure that powers Edgar. 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.

Infrastructure 233

Infrastructure Transportation Storage Open Source 233

Dynatrace

JULY 10, 2019

Dynatrace monitors your full stack and offers you thousands of metrics with almost zero configuration. This article we help distinguish between process metrics, external metrics and PurePaths (traces). OneAgent & application metrics. OneAgent & cloud metrics. Dynatrace news.

Java 142

Java Best Practices Metrics Azure 142

Speed Curve

DECEMBER 4, 2023

Earlier this year, when Google announced that Interaction to Next Paint (INP) will replace First Input Delay (FID) as the responsiveness metric in Core Web Vitals in *gulp* March of 2024, we had a lot to say about it. TLDR: FID doesn't correlate with real user behavior, so we don't endorse it as a meaningful metric.) for mobile.

Mobile 54

Mobile Performance Metrics Google 54

The Netflix TechBlog

JANUARY 24, 2022

Technically, “performance” metrics are those relating to the responsiveness or latency of the app, including start up time. At Netflix the term “performance” usually encompasses both performance metrics (in the strict meaning) and memory metrics, and that’s how we’re using the term here. What do we mean by Performance?

Performance 199

Performance Metrics Performance Testing Testing 199

The Netflix TechBlog

FEBRUARY 9, 2021

A few years ago, we decided to address this complexity by spinning up a new initiative, and eventually a new team, to move the complex handling of user and device authentication, and various security protocols and tokens, to the edge of the network, managed by a set of centralized services, and a single team.

Architecture 221

Architecture Latency Servers Website 221

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

The Morning Paper

FEBRUARY 6, 2020

’ Stateless is fine until you need state, at which point the coarse-grained solutions offered by current platforms limit the kinds of application designs that work well. On the Cloudburst design teams’ wish list: A running function’s ‘hot’ data should be kept physically nearby for low-latency access.

Lambda 98

Lambda Serverless Cache Latency 98

Alex Russell

MAY 9, 2022

This is a complex topic, but to borrow from a recent post , web performance expands access to information and services by reducing latency and variance across interactions in a session, with a particular focus on the tail of the distribution (P75+). Consistent performance matters just as much as low average latency.

Performance 86

Performance Latency Metrics Engineering 86

Scalegrid

MARCH 22, 2024

They can also bolster uptime and limit latency issues or potential downtimes. Its Database-as-a-Service (DBaaS) offerings are designed for flawless integration within multi-cloud and hybrid-cloud infrastructures. They simplify how you orchestrate everything across the diverse ecosystem of cloud services.

Strategy 130

Strategy Cloud Government Innovation 130

The Netflix TechBlog

NOVEMBER 22, 2019

This entertaining romp through the tech stack serves as an introduction to how we think about and design systems, the Netflix approach to operational challenges, and how other organizations can apply our thought processes and technologies. We explore all the systems necessary to make and stream content from Netflix.

AWS 100

AWS Entertainment Open Source Benchmarking 100

The Netflix TechBlog

NOVEMBER 22, 2019

This entertaining romp through the tech stack serves as an introduction to how we think about and design systems, the Netflix approach to operational challenges, and how other organizations can apply our thought processes and technologies. We explore all the systems necessary to make and stream content from Netflix.

AWS 100

AWS Entertainment Open Source Benchmarking 100

Smashing Magazine

MAY 16, 2022

This header can be set on the response of any network resource, such as XHR, fetch, images, HTML, stylesheets, etc. The header is constructed via a name with an optional description and/or metric value. These subtypes are currently the only subtypes related to network requests and thus exposing the Server-Timing information.

Servers 93

Servers Monitoring Cache Network 93

Dotcom-Montior

NOVEMBER 16, 2021

Since that time, the SRE role has evolved as the industry has changed and shifted from the traditional monolithic structures to large, widely distributed networks and microservices. SLIs are the actual performance metrics of your services. Latency is the amount of time, or delay, a service takes to respond to a request.

Monitoring 91

Monitoring Google DevOps Engineering 91

Smashing Magazine

AUGUST 15, 2023

Large preview ) While browsers are generally pretty fast, these steps still take time to load, typically in seconds, and even longer on slower, high-latency network connections. So noticeable, in fact, that Core Web Vitals has a metric all about it called Largest Contentful Paint (LCP). Here’s how we are approaching it.

Media 73

Media Metrics Mobile Best Practices 73

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. However, with more complex application logic this network round trip soon becomes a key focus area for improving performance.

Benchmarking 62

Benchmarking Database Network C++ 62

The Morning Paper

JULY 4, 2019

This is a fascinating paper from members of Netflix’s Resilience Engineering team describing their chaos engineering initiatives: automated controlled experiments designed to verify hypotheses about how the system should behave under gray failure conditions, and to probe for and flush out any weaknesses.

Latency 77

Latency Engineering Metrics Traffic 77

Smashing Magazine

AUGUST 22, 2021

As we will see, QUIC and HTTP/3 indeed have great web performance potential, but mainly for users on slow networks. If your average visitor is on a fast cabled or cellular network, they probably won’t benefit from the new protocols all that much. Two-way latency is often called round-trip time (RTT). Congestion Control.

Performance 106

Performance Network Latency Servers 106

All Things Distributed

JULY 20, 2015

The pool of resources, at this time, is the CPU, memory, and networking resources of Amazon EC2 instances as partitioned by containers. networks ports, memory, CPU, etc). To be robust and scalable, this key/value store needs to be distributed for durability and availability, to protect against network partitions or hardware failures.

Latency 166

Latency Architecture AWS Open Source 166

Smashing Magazine

JANUARY 11, 2021

LogRocket tracks key metrics, incl. Performance isn’t just a technical concern: it affects everything from accessibility to usability to search engine optimization, and when baking it into the workflow, design decisions have to be informed by their performance implications. Getting Ready: Planning And Metrics. Table Of Contents.

Performance 145

Performance Cache Media Metrics 145

All Things Distributed

JUNE 21, 2018

Further, with the growth and scale of Amazon.com, boundless horizontal scale needed to be a key design point--scaling up simply wasn't an option. Use cases such as gaming, ad tech, and IoT lend themselves particularly well to the key-value data model where the access patterns require low-latency Gets/Puts for known key values.

Database 167

Database AWS Games Latency 167

The Netflix TechBlog

MARCH 6, 2019

Video encoding is what MezzFS was originally designed for and remains one of its canonical use cases, so we’ll focus on video encoding to describe the problem that MezzFS solves. MezzFS collects metrics on data throughput, download efficiency, resource usage, etc. What problem are we solving? Its logs are collected in an ELK stack.

Media 214

Media Storage Processing Cache 214

The Morning Paper

SEPTEMBER 10, 2019

That’s hard for many reasons, including the differing trade-offs between throughput and latency that need to be made across the use cases. to understand YouTube video performance) drive tens of thousands of canned (known in advance) queries per second, that need to be served with latency in the tens of milliseconds.

Analytics 75

Analytics Latency Cache Google 75

All Things Distributed

NOVEMBER 26, 2013

About 5 years ago, I introduced you to AWS Availability Zones, which are distinct locations within a Region that are engineered to be insulated from failures in other Availability Zones and provide inexpensive, low latency network connectivity to other Availability Zones in the same region.

Cloud 145

Cloud AWS Traffic Latency 145

Highly Scalable

SEPTEMBER 18, 2012

Historically, NoSQL paid a lot of attention to tradeoffs between consistency, fault-tolerance and performance to serve geographically distributed systems, low-latency or highly available applications. Isolated parts of the database can serve read/write requests in case of network partition. Read/Write latency. Data Placement.

Database 213

Database Latency C++ Scalability 213

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. bpftrace is suited for this kind of analysis: decomposing metrics into distributions or per-event logs, and creating new metrics for visibility into blind spots. 1 /* 2 * biolatency.bt

Latency 68

Latency C++ Cache Programming 68