MachMetrics

JANUARY 23, 2020

You run a speed test on a website, and the results don’t match what you personally experience. Perhaps you feel like your site loads fairly quickly, but the speed test results are sub-optimal. It’s one of the most common (and frustrating) scenarios in web performance testing. The trend is your friend.

Speed 62

Speed Testing Website Cache 62

The Netflix TechBlog

MARCH 6, 2019

Disk Caching? — ? MezzFS can be configured to cache objects on the local disk. Regional caching? —?Netflix If an application in region A is using MezzFS to read from an object stored in region B, MezzFS will cache the object in region A. we only pay the transfer costs for one worker, and the rest use the cached object.

Media 214

Media Storage Processing Cache 214

MachMetrics

JUNE 30, 2021

Many people often confuse site speed with page speed grades of performance testing tools, which are actually calculated based on multiple factors of a page including its loading speed. The screenshot below explains that page load time and lighthouse performance scores are not the same, yet they are really close to each other.

Cache 78

Cache Speed Google Website 78

CSS - Tricks

OCTOBER 26, 2020

When I first got into caring about performance, it was all: reduce requests! cache things! And while those are all very related to web performance, they are abstractly related. Actual web performance to users are things like how long did I have to wait to see the content on the page? Make stuff smaller! Both are useful.

Cache 96

Cache Metrics Google Performance Testing 96

CSS - Tricks

JULY 25, 2019

Cache-Headers missing? These heuristics were coupled with a set of guidelines that would likely result in better performance, if followed, but were merely superficial and didn’t actually analyze the load and render experience that real visitors face. Guidelines for improvement are suggested based on how specific metrics score.

Google 71

Google Engineering Speed Mobile 71

Smashing Magazine

JANUARY 6, 2020

So, if we created an overview of all the things we have to keep in mind when improving performance — from the very start of the process until the final release of the website — what would that list look like? Getting Ready: Planning And Metrics. Testing And Monitoring. Getting Ready: Planning And Metrics.

Performance 145

Performance Cache Network Metrics 145

Smashing Magazine

JANUARY 7, 2019

So, if we created an overview of all the things we have to keep in mind when improving performance — from the very start of the process until the final release of the website — what would that list look like? Getting Ready: Planning And Metrics. Testing And Monitoring. Getting Ready: Planning And Metrics.

Performance 104

Performance Cache Network Metrics 104

Smashing Magazine

NOVEMBER 17, 2022

Webpage performance test report for the Smashing Magazine website. The Relation Between Images And Web Performance. This data makes it clear that there will be no good performance without well-optimized images. Key user-centric metrics often depend on the size, number, layout, and loading priority of images on the page.

Media 106

Media Cache Website Mobile 106

CSS - Tricks

MAY 3, 2021

Everything is there that always was, but more (like… Chrome User Experience Data pulled right into your Chrome test results so you can see how closely your test matches what Chrome is seeing, and Core Web visualizations right in the waterfall). So yes, WebPageTest is still here. It’s still free. Linux; Android 6.0.1;

Transportation 86

Transportation Cache Google Mobile 86

Dynatrace

SEPTEMBER 17, 2019

REDIS for caching. Having Dynatrace also looking at key EFS metrics gives them additional root cause information in case something goes wrong. 2: Automate Quality aka “Performance as a Self-Service”. for AWS) Enable AWS CloudWatch Monitoring for additional metrics and MetaData. NGINX as an API Gateway. 3 Log Analytics.

AWS 128

AWS Monitoring Ecommerce Lambda 128

Brendan Gregg

FEBRUARY 9, 2018

Much of my testing was on Linux 4.14.11 Some older kernels have the KAISER patches for Meltdown, and so far the performance overheads look similar. Also microbenchmarks, which often stress-test the system, will suffer the largest losses. I've since tested the 4.4.115 kernel and confirmed that pcid is used there.

Performance 75

Performance Benchmarking Cache Tuning 75

Smashing Magazine

APRIL 11, 2022

Loading experience is crucial to the user’s first impression and overall usability, so Google defined Largest Contentful Paint (LCP) metric to measure how quickly the main content loads and is displayed to the user. Of all those options, it’s safe to assume that text is the best choice for LCP performance because it loads and renders fast.

Media 70

Media Tuning Metrics Google 70

High Scalability

NOVEMBER 25, 2019

Edge caching. In general, Egnyte connect architecture shards and caches data at different levels based on: Amount of data. Nginx for disk based caching. We use different types of caching techniques depending on the problem statements. Disk based caching. Hybrid Sync. On prem data processing. Offline access.

Architecture 52

Architecture Cache Azure Storage 52

Smashing Magazine

SEPTEMBER 6, 2021

This explains the challenges involved in deploying and testing HTTP/3 yourself. This approach was touted to be better for fine-grained caching because each subresource could be cached individually and the full bundle didn’t need to be redownloaded if one of them changed. This is more in-depth and technical. Large preview ).

Network 105

Network Servers Cache Traffic 105

Brendan Gregg

FEBRUARY 8, 2018

Much of my testing was on Linux 4.14.11 Some older kernels have the KAISER patches for Meltdown, and so far the performance overheads look similar. Also microbenchmarks, which often stress-test the system, will suffer the largest losses. I've since tested the 4.4.115 kernel and confirmed that pcid is used there.

Performance 40

Performance Benchmarking Cache Tuning 40

SQL Server According to Bob

JANUARY 11, 2020

Stable media is commonly physical disk storage, but other devices and certain caching facilities qualify as well. Many high-end disk subsystems provide high-speed cache facilities to reduce the latency of read and write operations. This cache is often supported by a battery-powered backup facility.

Servers 40

Servers Cache Media Hardware 40