Dynatrace

SEPTEMBER 17, 2019

REDIS for caching. Dynatrace provides many automatic hotspot detection views; when Dynatrace detects a slowdown, an availability issue, or when you use the Diagnostics views and ask Dynatrace to show you the hotspots of a particular endpoint or of all requests that came in during a particular timeframe, e.g. load test or peak production load.

AWS 170

AWS Monitoring Ecommerce Lambda 170

n0derunner

SEPTEMBER 17, 2018

We supply a pre-configured scenario which we call the DB Colocation test. The DB Colocation test utilizes two properties of X-Ray not found in other benchmarking tools. Finally the scenario uses the workload.Wait specification to wait for the OLTP workload to finish (approx 1 hour) before the test is deemed completed.

Performance Testing 40

Performance Testing Benchmarking Testing Performance 40

CSS - Tricks

JULY 27, 2021

I got together with Tim Kadlec from over at WebPageTest the other day to use do a bit of performance testing on CSS-Tricks. Essentially use the tool, poke around, and identify performance pain points to work on. Especially as it affects cached page loads too. Turn off lazy loading of LCP image. Self-host fonts.

Cache 98

Cache Testing Google Innovation 98

Highly Scalable

APRIL 2, 2012

The rationale behind these methods is that frontend should be able to fetch transient information very efficiently and separately from fetching of heavy-weight domain entities because this information cannot be cached. So, the only way was to cache all necessary data to minimize interaction with RDBMS.

Ecommerce 100

Ecommerce Cache Storage Architecture 100

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!

Cache 97

Cache Metrics Google Performance Testing 97

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. How Lighthouse calculates the Performance Score. In-depth manual profiling.

Google 73

Google Engineering Speed Mobile 73

Smashing Magazine

NOVEMBER 17, 2022

Webpage performance test report for the Smashing Magazine website. The Relation Between Images And Web Performance. Cache Your Images. A website’s performance can suffer if frequently accessed images are not cached, as many requests will be made to images that have already been loaded in the user’s system.

Media 125

Media Cache Website Mobile 125

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 72

Performance Benchmarking Cache Tuning 72

CSS - Tricks

JULY 15, 2020

It’s the sort of thing where, if we make it, then perhaps we can gain a better understanding of what affects Jamstack performance and how to avoid bottlenecks. We will use continuous performance testing and Google Lighthouse to audit every change. This will highlight the importance of testing every code change.

Cache 74

Cache Google Analytics Servers 74

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 120

Network Servers Cache Traffic 120

Smashing Magazine

OCTOBER 31, 2023

Answering Common Questions About Interpreting Page Speed Reports Answering Common Questions About Interpreting Page Speed Reports Geoff Graham 2023-10-31T16:00:00+00:00 2023-10-31T17:06:18+00:00 This article is sponsored by DebugBear Running a performance check on your site isn’t too terribly difficult. Can’t be perfect every time!

Speed 117

Speed Google Website Metrics 117

Smashing Magazine

SEPTEMBER 24, 2021

performance improvement can lead to a 10% increase in conversion. To mitigate the performance issues, we had to add a lot of (unbudgeted) extra servers and had to aggressively cache pages on a reverse proxy. Plan For Performance And Measure Performance. Add Performance Checks To Your Quality Gate.

Website 132

Website Code Servers Analytics 132

Speed Curve

DECEMBER 6, 2023

At a glance you can see: The status of the deploy The status of your performance budgets (if you have created budgets) An aggregate metric for all of the URLs tested in the deploy (set to Largest Contentful Paint by default) Clicking on any deployment in the list brings up your Deployment Details dashboard.

Cache 64

Cache Retail Testing Code 64

Rigor

SEPTEMBER 17, 2019

He goes into detail covering the steps that need to be taken to ensure that a website or application is prepared for an influx of traffic, from scoping and testing to setting expectations and creating a contingency plan. Performance testing. Seasonal readiness testing involves both the front and back end. Retrospectives.

Performance 68

Performance Traffic Website Performance Testing 68

Speed Curve

DECEMBER 16, 2024

Our biggest achievements this year have centred on making it easier for you to: Gather more meaningful real user monitoring (RUM) data Get actionable insights from Core Web Vitals Simplify your synthetic testing Get expert performance coaching when and how you need it Keep reading to learn more.

Cache 52

Cache Google Metrics Hardware 52

Randon ASCII

FEBRUARY 25, 2018

It’s frustrating to leave your computer running tests overnight only to have crashes pollute the results. Instead of doing a dozen builds in a night to test a new build optimization I changed my script to just build Chrome in a loop until it failed. This was starting to look like a Windows file cache bug. failure rate.

Programming 79

Programming Hardware Cache Code 79

n0derunner

JULY 23, 2019

Many different queries are executing in parallel, some hitting RAM cache, some hitting storage. The variation in the transaction rate is due to the benchmark itself, the transaction rate is not expected to be uniform. The Postgres DB is totally un-tuned and contains purely default settings.

Benchmarking 76

Benchmarking Storage Tuning Cache 76

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

Smashing Magazine

APRIL 11, 2022

Of all those options, it’s safe to assume that text is the best choice for LCP performance because it loads and renders fast. web.dev’s main content is an image according to LCP (test ran on WebPageTest). It’s common knowledge that better website performance results in more conversions, more traffic, and better user experience.

Media 78

Media Tuning Metrics Google 78

DZone

AUGUST 16, 2019

If we are not prepared for this, the application performance will start degrading, and you will lose your audience and business.

Scalability 145

Scalability Efficiency Hardware Software 145

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

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 218

Media Storage Processing Cache 218

Scalegrid

JULY 29, 2020

Performance Testing. So, we pitted the two connection poolers head-to-head, using the standard pgbench tool, to see which one provides better transactions per second throughput through a benchmark test. For good measure, we ran the same tests without a connection pooler too. Testing Conditions. Pgpool-II (on box).

Benchmarking 246

Benchmarking Database Performance Testing Availability 246

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 90

Transportation Cache Google Mobile 90

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.

Speed 62

Speed Testing Website Cache 62

Smashing Magazine

AUGUST 9, 2022

It also lists cached resources and identifies unused Javascript. Network and CPU are throttled for lab data tests for more realistic conditions. Once the tool has crawled all the pages, it starts performing a Core Web Vitals check for each page and returns the results in a table. The tests can be run for both mobile and desktop.

Performance 134

Performance Benchmarking Website Metrics 134

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? Testing And Monitoring. You can then mimic the 90th percentile’s experience for testing. Table Of Contents.

Performance 112

Performance Cache Servers Network 112

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? Testing And Monitoring. You can then mimic the 90th percentile’s experience for testing. Table Of Contents.

Performance 111

Performance Cache Network Metrics 111

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