Brendan Gregg

SEPTEMBER 25, 2021

Since instances of both CentOS and Ubuntu were running in parallel, I could collect flame graphs at the same time (same time-of-day traffic mix) and compare them side by side. This server is spending about a third of its CPU cycles just checking the time! The CentOS flame graph: The Ubuntu flame graph: Darn, they didn't work.

Speed 126

Speed Java AWS Virtualization 126

CSS - Tricks

NOVEMBER 1, 2019

TTFB represents the time browser waits to receive first bytes of the response from server. TTFB mobile speed distribution (CrUX, July 2019). FCP mobile speed distribution (CrUX, July 2019). FID mobile speed distribution (CrUX, July 2019). TTFB mobile speed distribution comparison between all web and CMS (CrUX, July 2019).

Speed 46

Speed Mobile Metrics Scalability 46

Brendan Gregg

SEPTEMBER 25, 2021

Since instances of both CentOS and Ubuntu were running in parallel, I could collect flame graphs at the same time (same time-of-day traffic mix) and compare them side by side. This server is spending about a third of its CPU cycles just checking the time! The CentOS flame graph: The Ubuntu flame graph: Darn, they didn't work.

Speed 52

Speed Java AWS Virtualization 52

Percona

MARCH 29, 2023

Percona Server for MongoDB (PSMDB) supports all types of compression and enterprise-grade features for free. s Time taken to import 120000000 document: 7412 seconds We can see from the above comparison that we can save almost 3GB of disk space without impacting the CPU or memory. I am using PSMDB 6.0.4

Storage 112

Storage Network Open Source Latency 112

KeyCDN

FEBRUARY 4, 2021

This query is performed by a Domain Name Server (DNS server) or servers nearby that have been assigned responsibility for that hostname. You can think of a DNS server as a phone book for the internet. A DNS server maintains a directory of domain names and translates them to IPs.

Cache 134

Cache Website Internet Internet 134

Dynatrace

NOVEMBER 24, 2021

This helps significantly in automatically answering complex questions such as “ Is the CPU saturation of my F5 device caused by any of the virtual servers running on it? To help you speed up MTTR, there are several levels of visualization to help slice and dice through information: Instances. Virtual servers. Pool nodes.

Network 210

Network Infrastructure Virtualization Metrics 210

Brendan Gregg

SEPTEMBER 25, 2021

Since instances of both CentOS and Ubuntu were running in parallel, I could collect flame graphs at the same time (same time-of-day traffic mix) and compare them side by side. This server is spending about a third of its CPU cycles just checking the time! The CentOS flame graph: The Ubuntu flame graph: Darn, they didn't work.

Speed 40

Speed Java AWS Virtualization 40

Percona

MAY 2, 2023

During the logical backups, using client API, the data gets read from the server and returned back to the same API, which will be serialized and written into respective “ bson”, “ json” or “ csv” backup files on disk depending upon the type of backup utilities used. Records backup progress logging.

Best Practices 52

Best Practices Database Storage Servers 52

Smashing Magazine

OCTOBER 24, 2023

It’s “single-threaded,” which is how we get the one-way street comparison. We can expand the metric to glean insights into what exactly is causing traffic on the main thread. Large preview ) That’s a nice big view and is a good illustration of TBT’s impact on page speed. Credit: Brandon Nelson on Unsplash.

Google 90

Google Analytics Traffic Metrics 90

IO River

NOVEMBER 2, 2023

‍What Comprises Video Streaming - Traffic CharacteristicsWith the emphasis on a high-quality streaming experience, the optimization starts from the very core. Fundamentally, internet traffic can be broadly categorized into static and dynamic content. Let’s analyze how you can achieve this win-win as effectively as possible!‍What

Architecture 52

Architecture Performance Internet Internet 52

IO River

NOVEMBER 2, 2023

What Comprises Video Streaming - Traffic CharacteristicsWith the emphasis on a high-quality streaming experience, the optimization starts from the very core. Fundamentally, internet traffic can be broadly categorized into static and dynamic content. Let’s analyze how you can achieve this win-win as effectively as possible!‍What

Architecture 52

Architecture Performance Internet Internet 52

Smashing Magazine

MARCH 2, 2021

These days, with mobile traffic accounting for over 50% of web traffic , it’s fair to assume that the very first encounter of your prospect customers with your brand will happen on a mobile device. This goes way beyond basic optimizations such as color contrast and server response times. Large preview ). Improving Accessibility.

Mobile 133

Mobile Testing Website Benchmarking 133

Dynatrace

MAY 28, 2020

If you have a distributed environment with multiple servers hosting your webservers, app servers, and database, I suggest you install the OneAgent on all these servers to get full end-to-end visibility. This will enable deep monitoring of those Java,NET, Node, processes as well as your web servers. SimpleNodeJsService.

Engineering 192

Engineering Performance Metrics Best Practices 192

Enprowess

MAY 24, 2022

More incredible Speed with Virtual DOM. Reactjs can help your business in web and mobile application development by bringing fast speed using the virtual DOM. That makes it a proper fit, as speed is one of the critical factors for making a successful mobile application. React vs React Native: Head to Head Comparison.

Mobile 52

Mobile Open Source Virtualization Speed 52

Enprowess

MARCH 10, 2022

Angular vs React – The Complete Comparison. Server rendering in Angular vs React. In addition, React JavaScript framework uses server-side rendering to give a flexible, performance-oriented solution. Angular vs React – The Complete Comparison. React can support server-side rendering. Quick Links.

Development 52

Development Google Open Source Servers 52

Dotcom-Montior

NOVEMBER 21, 2017

In this paper, we will outline the main aspects of those followed by a comparison matrix, which you can use for choosing an appropriate simulation approach. Comparison. A typical load test server can simulate up to 800 simultaneous sessions. create(), server = ‘[link]. Component Speed Tests.

Testing 40

Testing Performance Testing Servers Programming 40

Smashing Magazine

JULY 29, 2019

For comparison, the same amount of data costs $6.66 The speed of mobile networks, too, varies considerably between countries. Perhaps surprisingly, users experience faster speeds over a mobile network than WiFi in at least 30 countries worldwide, including Australia and France. For comparison, $3.67 in the UK, or $12.37

Cache 96

Cache Google Mobile Network 96

Smashing Magazine

SEPTEMBER 6, 2021

Next, we’ll look at how to set up servers and clients (that’s the hard part unless you’re using a content delivery network (CDN)). This difference by itself doesn’t do all that much (it mainly reduces the overhead on the server-side), but it leads to most of the following points. Server Sharding and Connection Coalescing.

Network 104

Network Servers Cache Traffic 104

Smashing Magazine

AUGUST 22, 2021

A Primer on Speed. Discussing performance and “speed” can quickly get complex, because many underlying aspects contribute to a web-page loading “slowly”. Latency can be roughly defined as the time it takes to send a packet from point A (say, the client) to point B (the server). and prior (a)).

Performance 105

Performance Network Latency Servers 105

Alex Russell

MAY 9, 2022

Treating data as a distribution fundamentally enables comparison and experimentation because it creates a language for describing non-binary shifts. The speed of a client device isn't the limiting site speed factor in an HTML-first world. When the speed of a device dominates, wealth correlates heavily with performance.

Performance 86

Performance Latency Metrics Engineering 86

Brendan Gregg

SEPTEMBER 5, 2017

Oracle VM Server is based on Xen. Both Xen and KVM have had many performance and security improvements, and workloads can now be tuned to run at almost bare metal speeds (say, a 3% loss or less). Outside of EC2, many other providers are deploying on KVM. I also wrote and published an entertaining SMF manifest that played music.

Virtualization 76

Virtualization AWS Engineering Hardware 76

Smashing Magazine

JANUARY 11, 2021

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. Note : If you use Page Speed Insights or Page Speed Insights API (no, it isn’t deprecated!),

Performance 145

Performance Cache Media Metrics 145

Smashing Magazine

JANUARY 6, 2020

Is it worth exploring tree-shaking, scope hoisting, code-splitting, and all the fancy loading patterns with intersection observer, server push, clients hints, HTTP/2, service workers and — oh my — edge workers? Is it expensive JavaScript, slow web font delivery, heavy images, or sluggish rendering? Large preview ).

Performance 145

Performance Cache Network Metrics 145

Smashing Magazine

JANUARY 7, 2019

Is it worth exploring tree-shaking, scope hoisting, code-splitting, and all the fancy loading patterns with intersection observer, server push, clients hints, HTTP/2, service workers and — oh my — edge workers? Start Render time, Speed Index ). Rendering metrics provide an estimate of how fast content renders (e.g.

Performance 103

Performance Cache Metrics Network 103