Dynatrace

DECEMBER 2, 2021

To get a better handle on this, let’s start with some definitions. These can include business metrics, such as conversion rates, uptime, and availability; service metrics, such as application performance; or technical metrics, such as dependencies to third-party services, underlying CPU, and the cost of running a service.

Metrics 200

Metrics Best Practices DevOps Infrastructure 200

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. I’m happy to say, for the metrics that matter the most, we are 700–1,200ms faster.

Google 364

Google Media Latency Metrics 364

The Netflix TechBlog

AUGUST 13, 2020

A metric crossed a threshold. Metrics are a key part of understanding application health. But sometimes you can have too many metrics, too many graphs, and too many dashboards. Telltale uses a variety of signals from multiple sources to assemble a constantly evolving model of the application’s health: Atlas time series metrics.

Monitoring 210

Monitoring Tuning Traffic Metrics 210

Speed Curve

FEBRUARY 5, 2024

However, that pesky 20% on the back end can have a big impact on downstream metrics like First Contentful Paint (FCP), Largest Contentful Paint (LCP), and any other 'loading' metric you can think of. Latency – How much time does it take to deliver a packet from A to B. That performance golden rule still holds true today.

Servers 57

Servers Cache Retail Benchmarking 57

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

The Netflix TechBlog

FEBRUARY 9, 2021

At the highest level, the definition of the Passport is as follows: message Passport { Header header = 1; UserInfo user_info = 2 ; DeviceInfo device_info = 3 ; Integrity user_integrity = 4 ; Integrity device_integrity = 5 ; } The Header element communicates the name of the service that created the Passport.

Architecture 221

Architecture Latency Servers Website 221

Alex Russell

FEBRUARY 28, 2022

I propose four key ingredients: Definition: What is "performance" beyond page speed? The metrics that we report against implicitly cleave these into different "camps", leaving us thinking about pre- and post-load as distinct universes. Improving latency for one scenario can degrade it in another.

Performance 104

Performance Latency Architecture Network 104

Smashing Magazine

AUGUST 3, 2023

Google’s Core Web Vitals is a set of performance metrics that site owners can use to evaluate performance and diagnose performance issues. These metrics provide a different perspective on user experience: Largest Contentful Paint (LCP) Measures the time it takes for the main content on a webpage to load. One of the key Next.js

Performance 74

Performance Cache Traffic Metrics 74

The Netflix TechBlog

AUGUST 22, 2019

The configuration file, referenced scripts, and artifact dependency definitions all live in an internal git repository. In the canary stage, Kayenta is used to compare metrics between a baseline (current AMI) and the canary (new AMI). The canary stage will determine a score based on metrics such as CPU, threads, latency, and GC pauses.

DevOps 207

DevOps AWS Tuning Infrastructure 207

Speed Curve

MAY 1, 2023

A performance budget is a threshold that you apply to the metrics you care about the most. A good performance budget chart, such as the one above, should show you: The metric you're tracking The threshold you've created for that metric When you exceed that threshold How long you stayed out of bounds When you returned to below the threshold 3.

Performance 98

Performance Metrics Media Google 98

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

Dotcom-Montior

NOVEMBER 24, 2021

By definition, a distributed system is any system that comprises of multiple components on variety of machines that work together to appear as a single, organized system. Although the definition may seem straightforward, in the real-world, a distributed system is one of the most complex environments to understand, manage, and monitor.

Systems 74

Systems Monitoring Hardware Network 74

Dynatrace

JUNE 25, 2021

Already in the 2000s, service-oriented architectures (SOA) became popular, and operations teams discovered the need to understand how transactions traverse through all tiers and how these tiers contributed to the execution time and latency. The overall fallacy in this assumption becomes obvious when you look at the definitions of the terms.

Open Source 205

Open Source Monitoring Google Systems 205

The Morning Paper

OCTOBER 6, 2019

Prediction serving latency matters. Booking.com estimate the value delivered by a model through randomized controlled trials which measure the impact on business metrics. clicks) that fails to convert into the desired business metric (e.g. clicks) that fails to convert into the desired business metric (e.g.

Latency 102

Latency Metrics Cache Design 102

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

CSS - Tricks

MARCH 16, 2020

Along with other general diagnostics and web performance metrics, a really useful feature of the report is that each of the key areas is aggregated into color-coded scores between 0-100. If not, then check your Node installation is working and you’re definitely in the correct project directory. Here’s what a full report looks like.

Google 82

Google Latency Website Metrics 82

All Things Distributed

JULY 20, 2015

This architecture affords Amazon ECS high availability, low latency, and high throughput because the data store is never pessimistically locked. task definition). As you can see, the latency remains relatively jitter-free despite large fluctuations in the cluster size. Programmatic access through the API.

Latency 166

Latency Architecture AWS Open Source 166

The Morning Paper

MAY 21, 2019

This boils down to a single digit µs latency toleration in the tail for far memory, and in addition to security and privacy concerns, rules out remote memory solutions. Thus we’re fundamentally trading (de)-compression latency at access time for the ability to pack more data in memory.

Software 78

Software Software Google Hardware 78

CSS - Tricks

APRIL 1, 2021

Site performance is potentially the most important metric. Having a slow site might leave you on page 452 of search results, regardless of any other metric. I’m going to update my referenced URL to the new site to help decrease latency that adds drag to the initial page load. billion if the site slowed down by just one second.

Cache 92

Cache Social Media Media Network 92

Alex Russell

MARCH 6, 2021

The scale of the effect can be deeply situational or hard to suss out without solid metrics. Since then, the metrics conversation has moved forward significantly, culminating in Core Web Vitals , reported via the Chrome User Experience Report to reflect the real-world experiences of users. Baselines And Budgets Remain Vital.

Performance 124

Performance Network Cache Metrics 124

Dotcom-Montior

DECEMBER 8, 2021

By ITIL definition, the service desk may take the form of incident resolution or service requests, but whatever the case, the primary goal of the service desk to provide quick and efficient service. Knowing when and where an error, downtime, or application latency occurs is a critical factor in limiting the impact to users and customers.

Social Media 90

Social Media Monitoring Latency DevOps 90

Smashing Magazine

AUGUST 22, 2021

Because we are dealing with network protocols here, we will mainly look at network aspects, of which two are most important: latency and bandwidth. Latency can be roughly defined as the time it takes to send a packet from point A (say, the client) to point B (the server). Two-way latency is often called round-trip time (RTT).

Performance 106

Performance Network Latency Servers 106

Testsigma

DECEMBER 12, 2020

This kind of approach is although a victim of latency and delayed execution. No matter what kind of cloud-based tool you are using, the latency is bound to happen since there are too many requests involved in between. Although these kinds of issues are nothing in front of infrastructure maintenance.

Testing 53

Testing Operating System Website Latency 53

Smashing Magazine

JANUARY 11, 2021

LogRocket tracks key metrics, incl. Getting Ready: Planning And Metrics Performance culture, Core Web Vitals, performance profiles, CrUX, Lighthouse, FID, TTI, CLS, devices. Getting Ready: Planning And Metrics. DOM complete, time to first byte, first input delay, client CPU and memory usage. Get a free trial of LogRocket today.

Performance 145

Performance Cache Media Metrics 145

Smashing Magazine

JANUARY 6, 2020

Getting Ready: Planning And Metrics. Getting Ready: Planning And Metrics. You need a business stakeholder buy-in, and to get it, you need to establish a case study, or a proof of concept using the Performance API on how speed benefits metrics and Key Performance Indicators ( KPIs ) they care about. Table Of Contents. Quick Wins.

Performance 145

Performance Cache Network Metrics 145

Alex Russell

OCTOBER 22, 2017

This helps support executive sponsors who then have meaningful metrics to point to in justifying the investments being made. Very rarely have we seen a team succeed that doesn’t set budgets, gather RUM metrics, and carry representative customer devices. Teams with budgets also find it easier to track and graph progress.

Performance 68

Performance Benchmarking Network Mobile 68

Smashing Magazine

JANUARY 7, 2019

Getting Ready: Planning And Metrics. Getting Ready: Planning And Metrics. You need a business stakeholder buy-in, and to get it, you need to establish a case study on how speed benefits metrics and Key Performance Indicators ( KPIs ) they care about. Table Of Contents. Setting Realistic Goals. Defining The Environment.

Performance 104

Performance Cache Network Metrics 104

John McCalpin

JULY 23, 2018

This partial ordering can help expose the execution time of long-latency instructions (such as memory accesses or mispredicted branches) that occur shortly before the final value of the TSC is read using RDTSCP. Compute these metrics: Core Utilization = (Elapsed Reference Cycles not Halted) / (Elapsed TSC cycles).

Code 45

Code Programming Latency Testing 45

Alex Russell

JULY 14, 2021

I've got a long blog post brewing on this, but jumping to the end, an operable definition is: A browser is an application that can register with an OS to handle http and https navigations by default. This reduces friction and commensurately increases "engagement" metrics. [6]. "What, then, is a 'browser'?"

Google 121

Google Mobile Engineering Internet 121

Smashing Magazine

AUGUST 9, 2021

You’ve probably heard things like: “HTTP/3 is much faster than HTTP/2 when there is packet loss”, or “HTTP/3 connections have less latency and take less time to set up”, and probably “HTTP/3 can send data more quickly and can send more resources in parallel”. Conclusion. Let’s summarize what we’ve learned in this part.

Transportation 145

Transportation Internet Internet Network 145

SQL Server According to Bob

JANUARY 11, 2020

Many high-end disk subsystems provide high-speed cache facilities to reduce the latency of read and write operations. Microsoft strongly recommends maintaining the default recovery interval to ensure optimal recovery metrics and to function cleanly within the current cluster resource constraints.

Servers 40

Servers Cache Media Hardware 40

Smashing Magazine

SEPTEMBER 6, 2021

Finally, not inlining resources has an added latency cost because the file needs to be requested. Relying only on high-level metrics is very dangerous because these could be skewed by a plethora of factors (such as unrealistic network emulation, a lack of features on clients or servers, only partial HTTP/3 usage, etc.).

Network 105

Network Servers Cache Traffic 105