Dynatrace

SEPTEMBER 17, 2019

REDIS for caching. Robert’s development team has started using Dynatrace to optimize their server-side implementation on a regular basis, which ensures they’re not introducing any bad performing code, unnecessary calls to depending services or querying the same data multiple times in the same transaction instead of fetching it from a cache.

AWS 170

AWS Monitoring Ecommerce Lambda 170

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. Things to fix: Eliminate the CSS file redirect.

Cache 98

Cache Testing Google Innovation 98

n0derunner

SEPTEMBER 17, 2018

The “Data” disks are doing both reads (from DB cache misses) and writes committed transactions. The post HCI Performance testing made easy (Part 3) appeared first on n0derunner. Log writes are just used to commit transactions and so are 100% write.

Performance Testing 40

Performance Testing Benchmarking Testing Performance 40

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

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

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

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. When you have a fast server it doesn’t mean your site will automatically do better in terms of performance. Enable caching.

Cache 78

Cache Speed Google Website 78

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

Brendan Gregg

FEBRUARY 9, 2018

This overhead can be reduced by A) pcid, fully available in Linux 4.14, and B) Huge pages. - **Cache access pattern**: the overheads are exacerbated by certain access patterns that switch from caching well to caching a little less well. This can turn a 1% overhead (syscall cycles alone) into a 7% overhead.

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

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 Cache Tuning 76

Smashing Magazine

SEPTEMBER 6, 2021

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. Upon receipt of a valid Alt-Svc header indicating HTTP/3 support, the browser will cache this and try to set up a QUIC connection from then on.

Network 120

Network Servers Cache Traffic 120

Speed Curve

DECEMBER 6, 2023

GitHub integration This integration will provide the ability to link your GitHub repo to a site in SpeedCurve and automatically run performance tests against a GitHub deployment. Adhoc testing Soon you'll be able to run a test on demand that is scoped to: a deploy, a site, a URL within the site, or a specified URL of your choosing.

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

Randon ASCII

FEBRUARY 25, 2018

This was starting to look like a Windows file cache bug. Maybe something to do with multi-socket coherency of the disk and cache or ??? Either way, whether we fixed two or three separate bugs, Chrome’s builds are much more reliable now and I can go back to doing build-performance testing without hitting failures.

Programming 79

Programming Hardware Cache Code 79

Speed Curve

DECEMBER 16, 2024

Page was restored from back-forward cache – The bfcache essentially stores the full page in memory when navigating away from the page. See an in-depth walkthrough: How to test a site on demand Evergreen browser test profiles We've introduced "evergreen" browsers to your Synthetic test settings.

Cache 52

Cache Google Metrics Hardware 52

Smashing Magazine

OCTOBER 31, 2023

You can see how you might wind up with different results in performance tests simply by the type of real-user monitoring (RUM) that is in use. That means there’s no waiting 28 days for a fresh set of data to see the impact of any changes made to a site.

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. As a result, they found that a 0.1s This even required us to disable parts of the site’s functionality. Further Reading.

Website 132

Website Code Servers Analytics 132

Brendan Gregg

FEBRUARY 8, 2018

This overhead can be reduced by A) pcid, fully available in Linux 4.14, and B) Huge pages. - **Cache access pattern**: the overheads are exacerbated by certain access patterns that switch from caching well to caching a little less well. This can turn a 1% overhead (syscall cycles alone) into a 7% overhead.

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

Smashing Magazine

APRIL 11, 2022

It’s common knowledge that better website performance results in more conversions, more traffic, and better user experience. We can use the preload attribute for the HTML link element to optimize loading performance by ensuring that the browser discovers the resource earlier, downloads it, and caches it. Examples And Use Cases.

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

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. . So, our testing indicates PgBouncer is the far better choice for connection pooling. Final Words.

Benchmarking 246

Benchmarking Database Performance Testing Availability 246

CSS - Tricks

MAY 3, 2021

Linux; Android 6.0.1; Moto G (4)) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.4430.85 Mobile Safari/537.36 PTST/210419.211328", "accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9", image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9",

Transportation 90

Transportation Cache Google Mobile 90

Smashing Magazine

AUGUST 9, 2022

It also lists cached resources and identifies unused Javascript. WebPageTest Core Web Vitals Test. WebPageTest is, of course, a performance testing suite on its own. Additionally, it examines the number of third-party requests and resources a page makes. It also identifies unused images and layout shifts in a graph.

Performance 134

Performance Benchmarking Website Metrics 134

MachMetrics

JANUARY 23, 2020

You may even have a client who’s wondering why they’re getting inconsistent results on tests they’ve run on a site you built for them. It’s one of the most common (and frustrating) scenarios in web performance testing. In fact, it was the driving force in the creation of MachMetrics.

Speed 62

Speed Testing Website Cache 62

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? As the code base keeps growing, the UI performance bottlenecks will show up, slowing down the user’s experience.

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? As the code base keeps growing, the UI performance bottlenecks will show up, slowing down the user’s experience.

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