Dynatrace

NOVEMBER 1, 2022

All these definitions are distinct and important. This measurement includes time spent testing until the service is fully functional again. This includes time your team spends investigating, repairing, and testing. MTTF measures the reliability of a network and durability of its hardware. So, what is MTTR?

DevOps 198

DevOps Artificial Intelligence Metrics Network 198

Percona

JUNE 30, 2023

Additionally, Percona Operator for PostgreSQL version 2 includes expanded options for customizing backup and restore operations, improved monitoring and alerting capabilities, and support for PostgreSQL 15. This can be useful if you plan to migrate to new hardware or need to test the new topology. In version 1.x,

Availability 92

Availability Open Source Azure Hardware 92

Dynatrace

DECEMBER 20, 2019

OneAgent monitors the full stack on your hosts. Imagine a situation where a Synthetic test uncovers a significant problem during the night following the deployment of a “non-critical” service. You can’t keep pace by simply upgrading to the latest hardware and updating to the latest release twice a year.

Infrastructure 133

Infrastructure Cloud Monitoring Government 133

Speed Curve

MARCH 7, 2022

Having said that, looking at data over the past ten years, it's safe to make the observation that pages are definitely trending bigger. You can dig deeper into the mechanics of how CLS is calculated, but the human-friendly definition is that CLS helps you understand how likely a page is to deliver a janky, unpleasant experience to viewers.

Mobile 145

Mobile Benchmarking Google Metrics 145

Randon ASCII

OCTOBER 4, 2020

The answer is hardware interrupts. The interval between timer interrupts depends on the Windows version and on your hardware but on every machine I have used recently the default interval has been 15.625 ms (1,000 ms divided by 64). FelixPetriconi ran the tests for me on Windows 10 1909 and I ran the tests on Windows 10 2004.

Programming 145

Programming Games Hardware Operating System 145

Dotcom-Montior

DECEMBER 8, 2021

In a different article, we talked about chaos engineering and how SRE teams proactively seek out and test for failures to prevent the worst from happening. Software services still require physical devices and hardware for them to function. Incident identification begins with some form of monitoring or alerting mechanism.

Social Media 90

Social Media Monitoring Latency DevOps 90

Percona

JANUARY 19, 2023

Example: Creating four simple tables to store strings but using different data types: db1 test> CREATE TABLE tb1 (id int auto_increment primary key, test_text char(200)); Query OK, 0 rows affected (0.11 sec) db1 test> CREATE TABLE tb2 (id int auto_increment primary key, test_text varchar(200)); Query OK, 0 rows affected (0.05

Open Source 85

Open Source Storage Database Big Data 85

Smashing Magazine

APRIL 19, 2021

Total Blocking Time (TBT) is a good proxy for FID when using a testing tool without any direct user interaction, but also keep an eye on Time to Interactive (TTI) when looking at FID. These tools run page loads on simulated networks and devices and then tell you what the metrics were for that test run. Cumulative Layout Shift (CLS).

Google 141

Google Metrics Mobile Analytics 141

The Morning Paper

MAY 21, 2019

We focus on a definition that draws from the following two principles: (1) the value of temporal locality, by classifying as cold a memory page that has not been accessed beyond a threshold of T seconds; (2) a proxy for the application effect of far memory, by measuring the rate of accesses to cold memory pages, called promotion rate.

Software 78

Software Software Google Hardware 78

MachMetrics

JULY 27, 2018

If you run a private WebPageTest instance on Amazon EC2, one of the choices you’ll have to make is whether to use Linux or Windows test agents. But last week I switched over to Linux test agents, and I don’t think I’ll ever go back to Windows – here’s why: 1. Linux Agents are more consistent.

Speed 40

Speed Hardware Internet Internet 40

Abhishek Tiwari

DECEMBER 27, 2017

support for logging, monitoring, and observability. The workloads for both test environments ran on apples-to-apples configurations. Using default scheduler's node affinity feature you can ensure that certain pods only schedule on nodes with specialized hardware like GPU, memory-optimised, I/O optimised etc.

Big Data 63

Big Data Storage Benchmarking Hardware 63

Smashing Magazine

JANUARY 11, 2021

This guide has been kindly supported by our friends at LogRocket , a service that combines frontend performance monitoring , session replay, and product analytics to help you build better customer experiences. You can then mimic the 90th percentile’s experience for testing. Vitaly Friedman. 2021-01-11T15:30:13+00:00. Quick Wins.

Performance 145

Performance Cache Media Metrics 145

Smashing Magazine

JANUARY 6, 2020

Testing And Monitoring. You can then mimic the 90th percentile’s experience for testing. Alternatively, you can also use Speed Scorecard (also provides a revenue impact estimator), Real User Experience Test Comparison or SiteSpeed CI (based on synthetic testing). Now you have something measurable to test against.

Performance 145

Performance Cache Network Metrics 145

Smashing Magazine

JANUARY 7, 2019

Testing And Monitoring. You can then mimic the 90th percentile’s experience for testing. And if you are using CI to test the budgets, you need to make sure your tested environment matches CrUX if you used CrUX for setting the target ( thanks Patrick Meenan! ). Now you have something measurable to test against.

Performance 104

Performance Cache Metrics Network 104

The Morning Paper

JANUARY 19, 2020

That’s not just the running components you immediately think of, but also the tool chains, deployment processes, monitoring tools, and everything else wrapped around them. The people interacting with the system need to maintain sufficient mental models of how this all works to be able to perform their tasks. How do participants do that?

C++ 50

C++ Systems Software Software 50

High Scalability

NOVEMBER 25, 2019

There are many unique things but the storage layer, event-based sync is definitely worth learning, here are more details on it Egnyte object store and Egnyte Canonical File System. If you develop something then you own the lifecycle of that product, which means you would work with QA, DevOps to ensure it’s tested/deployed.

Architecture 52

Architecture Cache Azure Storage 52

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. Both pass all eighteen feature tests in Thomas Steiner's excellent ??? Hardware access APIs, notably: Geolocation. Web Bluetooth.

Google 121

Google Mobile Engineering Internet 121

O'Reilly

NOVEMBER 28, 2023

Unexpected outcomes, security, safety, fairness and bias, and privacy are the biggest risks for which adopters are testing. That pricing won’t be sustainable, particularly as hardware shortages drive up the cost of building infrastructure. Any attempt at automating customer service needs to be very carefully tested and debugged.

Open Source 112

Open Source Artificial Intelligence Google Infrastructure 112

Alex Russell

OCTOBER 22, 2017

Tools and CI systems help them monitor progress & prevent regressions. Automating testing against an objective baseline. This, in turn, drives the single most important trend in setting the global web performance budget hardware baseline: the next billion users will largely come online when they can afford to.

Performance 68

Performance Benchmarking Network Mobile 68

O'Reilly

OCTOBER 11, 2022

Selenium , the first tool for automated browser testing (2004), could be programmed to find fields on a web page, click on them or insert text, click “submit,” scrape the resulting web page, and collect results. But the core of the process is simple, and hasn’t changed much since the early days of web testing. What’s required?

Games 120

Games Healthcare Processing Retail 120

All Things Distributed

JULY 20, 2015

The agent allows Amazon ECS to communicate with the EC2 instances in the cluster to start, stop, and monitor containers as requested by a user or scheduler. 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