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Synthetic Monitoring vs. RUM

Rigor

Let’s start with a brief definition of two of the more prominent web performance methodologies: synthetic monitoring and real user monitoring (also known as RUM). As a result, users can identify latency and downtime promptly, and they can then scientifically isolate and diagnose the root cause of any performance issues that may arise.

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Fixing a slow site iteratively

CSS - Tricks

Google’s industry benchmarks from 2018 also provide a striking breakdown of how each second of loading affects bounce rates. In that spirit, what we’re looking at in this article is focused more on the incremental wins and less on providing an exhaustive list or checklist of performance strategies. Again, every millisecond counts.

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A Complete Guide to Performance Budgets

Speed Curve

According to the Chrome dev team : "INP is a metric that aims to represent a page's overall interaction latency by selecting one of the single longest interactions that occur when a user visits a page. INP logs the latency of all interactions throughout the entire page lifecycle. Media sites are particularly prone to this issue.

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Can You Afford It?: Real-world Web Performance Budgets

Alex Russell

This rework delays launch which, in turn, delays gathering data about the viability of a PWA strategy. Budgets are scaled to a benchmark network & device. Deciding what benchmark to use for a performance budget is crucial. Our baseline, then, should probably trade lower throughput/higher-latency for packet loss.

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Front-End Performance Checklist 2021

Smashing Magazine

In many organizations, front-end developers know exactly what common underlying problems are and what strategies should be used to fix them. Performance Budgets, Pragmatically shows you a strategy to achieve that. Establish a performance culture. There are many tools allowing you to achieve that: SiteSpeed.io Large preview ).

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Front-End Performance Checklist 2020 [PDF, Apple Pages, MS Word]

Smashing Magazine

It might be tempting to get into quick "low-hanging-fruits"-optimizations early on — and it might be a good strategy for quick wins — but it will be very hard to keep performance a priority without planning and setting realistic, company-tailored performance goals. when web fonts aren’t loaded yet). Planning, planning, planning.

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SQL Server I/O Basics Chapter #1

SQL Server According to Bob

Many high-end disk subsystems provide high-speed cache facilities to reduce the latency of read and write operations. Important Always consult with your hardware manufacturer for proper stable media strategies. Dirty Page Latency ​​ – A page is considered dirty when data modifications have taken place.

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