Brendan Gregg

FEBRUARY 28, 2023

References I've reproduced the references from my SREcon22 keynote below, so you can click on links: [Gregg 08] Brendan Gregg, “ZFS L2ARC,” [link] , Jul 2008 [Gregg 10] Brendan Gregg, “Visualizations for Performance Analysis (and More),” [link] , 2010 [Greenberg 11] Marc Greenberg, “DDR4: Double the speed, double the latency?

Performance 52

Performance Latency Cache Virtualization 52

MachMetrics

DECEMBER 14, 2019

Similar to our article Average Page Load Times for 2018 , we’ll go over the averages for metrics and help you determine if your site is faster or slower than average. As you know, there are many metrics that determine a website’s page speed, and we can’t look at just one of them to determine how performant our site is.

Best Practices 105

Best Practices Speed Mobile Google 105

Smashing Magazine

OCTOBER 26, 2018

2018-10-26T13:45:46+02:00. In addition to MVC separation, we can (for security reasons or speed improvements) place the JS App on a separate server like in the schema below: Decoupled WordPress diagram. Headless WordPress: The Ups And Downs Of Creating A Decoupled WordPress. Denis Žoljom. 2019-04-29T18:34:58+00:00. Large preview ).

Cache 78

Cache Website Speed Database 78

Scalegrid

FEBRUARY 11, 2019

Guillermo Rauch (@rauchg) December 18, 2018. To learn how to speed up your WordPress installation using Redis Caching, check out our Using Redis Object Cache to Speed Up Your WordPress Installation post. Powered by `php-fpm` (soon as a Lambda layer directly). ? Micro SQL instance hosted on @scalegridio (cheap!)

Serverless 138

Serverless Azure Database Cache 138

Percona

MAY 1, 2023

This blog was originally published in August 2018 and was updated in May 2023. Selecting the appropriate index type, creating composite indexes, and regularly analyzing and reindexing the database can substantially improve query speed. This parameter sets how much dedicated memory will be used by PostgreSQL for the cache.

Tuning 52

Tuning Efficiency Database Performance 52

Smashing Magazine

JULY 29, 2019

A 2018 study by cable.co.uk found that Zimbabwe was the most expensive country in the world for mobile data, where 1 GB cost an average of $75.20, ranging from $12.50 The speed of mobile networks, too, varies considerably between countries. South Korea has the fastest mobile download speed , averaging 52.4 to $138.46.

Cache 96

Cache Google Mobile Network 96

KeyCDN

OCTOBER 24, 2018

Today we’re excited to announce that we’ve launched yet another POP location to help further supercharge our network’s content delivery speeds. As of August 2018, Helsinki alone had a population of almost 650,000 people. In terms of Internet speed, Finland ranks as one of the fastest countries in the world.

Internet 48

Internet Internet Speed Network 48

Smashing Magazine

JANUARY 11, 2021

Build Optimizations JavaScript modules, module/nomodule pattern, tree-shaking, code-splitting, scope-hoisting, Webpack, differential serving, web worker, WebAssembly, JavaScript bundles, React, SPA, partial hydration, import on interaction, 3rd-parties, cache. You can create your own on Chrome UX Dashboard. Large preview ). Large preview ).

Performance 145

Performance Cache Media Metrics 145

Jos

JUNE 2, 2018

presented in Google IO 2018 ( source ) These tools make it easier to determine where we need to put emphasis to improve our sites. Also, the speed of my internet connection is humongous and I’m close to data centres located in Stockholm and London. Ideally, shoot for 30% speed improvements. A screenshot of Lighthouse 3.0,

Performance 237

Performance Speed Google Media 237

Smashing Magazine

JANUARY 6, 2020

You need a business stakeholder buy-in, and to get it, you need to establish a case study, or a proof of concept using the Performance API on how speed benefits metrics and Key Performance Indicators ( KPIs ) they care about. Start Render time, Speed Index ). Treo Sites provides competitive analysis based on real-world data.

Performance 145

Performance Cache Network Metrics 145

Smashing Magazine

JANUARY 7, 2019

You need a business stakeholder buy-in, and to get it, you need to establish a case study on how speed benefits metrics and Key Performance Indicators ( KPIs ) they care about. Note : If you use Page Speed Insights (no, it isn’t deprecated), you can get CrUX performance data for specific pages instead of just the aggregates.

Performance 103

Performance Cache Metrics Network 103

KeyCDN

SEPTEMBER 12, 2019

When it comes to marketing your website, there are a lot of different aspects to consider, such as speed, SEO, conversation rates, bounce rate, and many others. KeyCDN’s Cache Enabler plugin is fully compatible the HTML attributes that make images responsive. jpg 480 KB 407 KB 43 KB 89% jpg-to-webp-2.jpg

Social Media 106

Social Media Media Google Website 106

Randon ASCII

FEBRUARY 25, 2018

See the end of the post for an October 2018 bug fix update, or read the whole story: Flaky failures are the worst. I was doing a lot of builds because I was doing build-speed investigations and these crashes were interfering with my ability to do measurements. This was starting to look like a Windows file cache bug.

Programming 79

Programming Hardware Cache Code 79

Alex Russell

MARCH 6, 2021

A then-representative $200USD device had 4-8 slow (in-order, low-cache) cores, ~2GiB of RAM, and relatively slow MLC NAND flash storage. India became a 4G-centric market sometime in 2018. Recall that single-core performance most directly translates into speed on the web. The Moto G4 , for example. Tap for a larger version.

Performance 124

Performance Network Cache Metrics 124

Smashing Magazine

JANUARY 21, 2021

Plus a service worker that caches all static assets and serves them for repeat views, along with cached versions of articles that a reader has already visited. We chose to focus specifically on slow mobile devices — with slow 3G, 400ms RTT and 400kbps transfer speed, just to be on the pessimistic side of things.

Performance 145

Performance Cache Mobile Network 145

Jos

JUNE 2, 2018

presented in Google IO 2018 ( source ). At the same time, they open a door to lots of concepts that might be overwhelming: PRPL, RAIL, Paint Timing API, TTI, HTTP/2, Speed Index, Priority Hints and more …. Also, the speed of my internet connection is humongous and I’m close to data centres located in Stockholm and London.

Performance 130

Performance Speed Google Media 130

SQL Performance

JULY 16, 2019

I wrote a number of blog posts about this back in January 2018, including these: Checking Your SQL Server Instance for Spectre/Meltdown Patches. They will also have up to 256MB of L3 cache per processor. Checking Your Meltdown and Spectre Mitigation Status in Windows.

Servers 46

Servers Hardware Architecture Retail 46

Smashing Magazine

NOVEMBER 22, 2021

We deployed these enhancements gradually over time to ensure that our users didn’t experience any disruptions, but instead only a consistent improvement of their site speed. While some noticeable progress was made, it was challenging to implement significant changes just for the sake of speed. Creating A Performance Culture.

Website 126

Website Performance Google Media 126

High Scalability

JULY 20, 2018

That means multiple data indirections mean multiple cache misses. Mark LaPedus : MRAM, a next-generation memory type, is being touted as a replacement for embedded flash and cache applications. Cliff Click : The JVM is very good at eliminating the cost of code abstraction, but not the cost of data abstraction. They are very expensive.

Internet 121

Internet Internet Scalability Automotive 121

Alex Russell

OCTOBER 22, 2017

JavaScript is the single most expensive part of any page in ways that are a function of both network capacity and device speed. Add onto that the yawning chasm between low-end and high-end device performance thanks to chip design factors like cache sizes, and it can be difficult to know where to set a device baseline.

Performance 68

Performance Benchmarking Network Mobile 68

Enprowess

MARCH 10, 2022

Additionally, Netflix uses the Reactjs library to boost runtime performance, modularization and increase start-up speed. It depends on you how skillfully you utilize the combination of JSON and client-side caching to boost the server-side performance. Super high-speed rendering. have used Angular.

Development 52

Development Google Open Source Servers 52

The Netflix TechBlog

JULY 1, 2019

Some of the metrics we use to measure performance on the Netflix TV app include animation frames per second (FPS), key input responsiveness (the amount of time before a member’s key press renders a change in the UI), video playback speed, and app start-up time. The majority of legacy devices run at 28MB of surface cache.

Cache 166

Cache Design Testing Development 166

Abhishek Tiwari

DECEMBER 27, 2017

There are several emerging data trends that will define the future of ETL in 2018. In 2018, we anticipate that ETL will either lose relevance or the ETL process will disintegrate and be consumed by new data architectures. In contrast, Alluxio a middleware for data access - think Alluxio storage layer as fast cache.

Big Data 49

Big Data Artificial Intelligence Storage Hardware 49

Smashing Magazine

SEPTEMBER 6, 2021

Using just a few (but still more than one), however, could nicely balance congestion growth with better performance, especially on high-speed networks. 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.

Network 104

Network Servers Cache Traffic 104