CSS Wizardry

AUGUST 24, 2022

I can reload the exact same page under the exact same network conditions over and over, and I can guarantee I will not get the exact same, say, DOMContentLoaded each time. What if another file on the critical path had dropped out of cache and needed fetching from the network? There are myriad reasons for this that I won’t cover here.

Benchmarking 249

Benchmarking Metrics Cache Network 249

CSS Wizardry

DECEMBER 9, 2023

However, we can also see that the browser didn’t begin network negotiation until closer to the 1.5-second Connection overhead isn’t huge , but too many preconnect s that either a) aren’t critical, or b) don’t get used at all, is definitely wasteful. What went wrong?! m.files.bbci.co.uk : On the critical path with render-blocking CSS.

Speed 280

Speed Network Analytics Availability 280

Dynatrace

DECEMBER 13, 2024

The Operator also manages configurations across a fleet of Collectors using Open Agent Management Protocol (OpAMP), which is a network protocol for remotely managing large fleets of data collection agents. The following is a sample Instrumentation resource definition for a Python service: apiVersion: opentelemetry.io/v1alpha1

Java 183

Java Servers Code Metrics 183

Alex Podelko

AUGUST 18, 2019

Of course, more sophisticated tools may definitely do better job in creating a simple and intuitive interface (still providing a way to invoke more sophisticated functionality when needed). One of main challenges is definitely scripting and scripts fragility. But it doesn’t mean that we need tools with minimal functionality.

Performance Testing 243

Performance Testing Testing Performance Testing Tools 243

The Netflix TechBlog

FEBRUARY 9, 2021

A few years ago, we decided to address this complexity by spinning up a new initiative, and eventually a new team, to move the complex handling of user and device authentication, and various security protocols and tokens, to the edge of the network, managed by a set of centralized services, and a single team.

Architecture 230

Architecture Latency Servers Systems 230

The Netflix TechBlog

JULY 30, 2019

Adoption As of writing this blog, Conductor orchestrates 600+ workflow definitions owned by 50+ teams across Netflix. The task definition parameter rateLimitFrequencyInSeconds sets the duration window, while rateLimitPerFrequency defines the number of tasks that can be scheduled in a duration window.

Lambda 192

Lambda Media Open Source Metrics 192

The Netflix TechBlog

OCTOBER 14, 2024

the ipykernel process) of the jupyter-lab server process , which means the main event loop being injected by pystan is that of the ipykernel process, not the jupyter-server process. Blame The Network The next theory was that the network between the web browser UI (on the laptop) and the JupyterLab server was slow.

Latency 217

Latency Virtualization Traffic Processing 217

Dynatrace

MAY 17, 2023

When software runs in a monolithic stack on on-site servers, observability is manageable enough. Once the user submits the form, this part establishes REST connections to the agents, which execute the network call appropriate for the provided URL and return all information they managed to gather to the central PHP service.

Metrics 192

Metrics Open Source Traffic Cache 192

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. So DNS services definitely go down!

Cache 134

Cache Website Internet Internet 134

Dynatrace

FEBRUARY 16, 2023

There are many definitions of environmental sustainability, most of which converge on a common theme: collectively and individually, we have a responsibility to act to protect global ecosystems and support health and wellbeing, now and in the future. Average cloud server idle time exceeds 70%.

Energy 194

Energy Airlines Analytics Transportation 194

Smashing Magazine

AUGUST 9, 2021

It was heralded as an amazing performance revolution, with exciting new features such as server push, parallel streams, and prioritization. We would have been able to stop bundling resources, stop sharding our resources across multiple servers, and heavily streamline the page-loading process. What is so different?

Transportation 145

Transportation Internet Internet Network 145

Scalegrid

FEBRUARY 15, 2024

Each section is crafted to elevate your database’s security protocol, from acquiring the necessary SSL certificates to configuring server and client connections. Preparing SSL Certificates for MongoDB The SSL certificates are necessary for our MongoDB server to establish secure SSL/TLS communications.

Servers 130

Servers Best Practices Government Network 130

High Scalability

OCTOBER 24, 2022

Network effects are not the same as monopoly control. Cloud providers incur huge fixed costs for creating and maintaining a network of datacenters spread throughout the word. And even that list is not invulnerable. With solar power, the centralization of power generation is giving way to a more decentralized model. Neither are clouds.

Cloud 187

Cloud Hardware Infrastructure Innovation 187

Smashing Magazine

FEBRUARY 15, 2021

A video with large dimensions or a high bitrate will take longer to download and will require a higher speed network to play back smoothly. This leads to longer startup times, and if the network cannot supply the video fast enough, the video will stall during video playback. There is a solution though! Large preview ).

Network 144

Network Speed Website Mobile 144

Alex Russell

FEBRUARY 28, 2022

I propose four key ingredients: Definition: What is "performance" beyond page speed? Tim Berners-Lee tweets that 'This is for everyone' at the 2012 Olympic Games opening ceremony using the NeXT computer he used to build the first browser and web server. The predominant answer: a unified theory of web performance.

Performance 113

Performance Latency Architecture Network 113

All Things Distributed

DECEMBER 5, 2010

The naming system that we are all most familiar with in the internet is the Domain Name System (DNS) that manages the naming of the many different entities in our global network; its most common use is to map a name to an IP address, but it also provides facilities for aliases, finding mail servers, managing security keys, and much more.

Cloud 113

Cloud Internet Internet AWS 113

All Things Distributed

APRIL 11, 2018

Having a consistent, immutable unit of deployment to work with lets you abstract away all the complexities of configuring your servers and deployment pipelines every time you change your code or want to run your app in a different place. But containers also put another layer between your code and where it runs.

Cloud 118

Cloud AWS Innovation Traffic 118

SQL Performance

FEBRUARY 10, 2021

BatchMe ( col1 INT NOT NULL , INDEX idx_cs CLUSTERED COLUMNSTORE ) ; And here’s the code with the definition of the dbo.GetNumsAlanCharlieItzikBatch function: CREATE OR ALTER FUNCTION dbo. This time the wait info has no async network I/O waits, and you can see the significant drop in run time. BatchMe ; GO. CREATE TABLE dbo.

C++ 124

C++ Servers Testing Code 124

Speed Curve

FEBRUARY 5, 2024

Server-timing headers are a key tool in understanding what's happening within that black box of Time to First Byte (TTFB). Cue server-timing headers Historically, when looking at page speed, we've had the tendency to ignore TTFB when trying to optimize the user experience. I mean, why wouldn't we?

Servers 60

Servers Cache Retail Benchmarking 60

Dynatrace

JULY 10, 2019

OneAgents are optimized to send data to the Dynatrace servers with the smallest possible impact, querying the metrics every minute, and the data is a first-class citizen for the Dynatrace AI root-cause analysis. Dynatrace provides out-of-the-box support for VMware, AWS, Azure, Pivotal Cloud Foundry, and Kubernetes.

Java 144

Java Best Practices Metrics Azure 144

Smashing Magazine

JULY 18, 2022

If you think that static rendering is limited to generic, public content that is the same for every user of your website, you should definitely read this article. Segmented Rendering is a new pattern for the Jamstack that lets you personalize content statically, without any sort of client-side rendering or per-request Server-Side Rendering.

Cache 118

Cache Website Servers Energy 118

Smashing Magazine

AUGUST 31, 2021

This file is rendered on the server and is not re-rendered on the client. Use it for <Provider> s, global definitions, application settings, and so on. Every time a new route is visited, our pages can tap into the AppStateContext and have their definitions passed down as props. Creating A Hierarchy Amongst Routes.

Cache 104

Cache Servers Best Practices Code 104

Dotcom-Montior

NOVEMBER 24, 2021

There was a time when standing up a website or application was simple and straightforward and not the complex networks they are today. Do you have a web server? Is the web server running? The last item to check was if the web server was able to talk to the database? The recipe was straightforward. Do you have a database?

Systems 74

Systems Monitoring Hardware Network 74

Alex Russell

JANUARY 5, 2022

This artwork is by Beeple and sold via Nifty: niftygateway.com/itemdetail/primary/0x12f28e2106ce8fd8464885b80ea865e98b465149/1 The NFT token is for this JSON file hosted directly on Nifty's servers: api.niftygateway.com/beeple/100010001/ 3330 12:40 PM · Mar 17, 2021. Jonty Wareing @jonty THAT file refers to the actual media you just "bought".

Blockchain 125

Blockchain Media Transportation Internet 125

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 108

Network Servers Cache Traffic 108

Dynatrace

OCTOBER 23, 2020

It will definitely find its way there before the GA release. Deploy OneAgent instances with the option to override any of the settings—tags, properties, monitoring mode, network zones, host groups, tenants, servers, etc., We plan to also publish the OneAgent collection directly to Ansible Galaxy soon.

Tuning 130

Tuning Monitoring Availability Architecture 130

The Netflix TechBlog

FEBRUARY 9, 2021

The homepage needs to load in a reasonable amount of time, even in poor network conditions. Server-generated assets, since client-side generation would require the retrieval of many individual images, which would increase latency and time-to-render. Localized images for each of the titles.

Engineering 174

Engineering Storage Latency Entertainment 174

CSS - Tricks

APRIL 1, 2021

Using a network request inspector, I’m going to see if there’s anything we can remove via the Network panel in DevTools. I like using Fiddler , and when I inspect the network requests I see that there are indeed some old URLs and redirects floating around. We can repoint all our redirect-to-slow-site URLs to the updated URL.

Cache 92

Cache Social Media Media Website 92

Scalegrid

APRIL 5, 2024

Unlike replication, which merely copies data from one place to another, sharding entails horizontally partitioning the database into separate segments or shards placed on different servers. Instead of one runner (server) bearing the entire burden until exhaustion, several runners (servers) take turns, which leads to enhanced efficiency.

Scalability 130

Scalability Java Efficiency Database 130

Percona

APRIL 12, 2023

Whereas many open source software offerings — like the community version of MySQL — use the GNU General Public License ( GPL ), MongoDB has been under the GNU Affero General Public License ( AGPL ) and more recently under the Server Side Public License ( SSPL ), introduced by MongoDB itself.

Open Source 86

Open Source Programming Database Servers 86

Percona

AUGUST 30, 2023

The most common parameter used by the PostgreSQL server (postmaster) will be PGDATA, which sets the parameter data_directory. Here is an example: $ export PGDATA=/home/postgres/data $ export PGPORT=5434 $ pg_ctl start waiting for server to start.2023-08-04 But changing this is possible only at the server startup.

Database 109

Database Servers Open Source Tuning 109

Percona

JULY 25, 2023

You can choose to save them locally on the same server, stream them to different servers, or store them in object storage. Summary If you utilize streaming inside your local network, you can definitely benefit from faster backups by streaming data in parallel using the new FIFO datasink.

Storage 83

Storage Speed Open Source Servers 83

Tim Kadlec

JUNE 29, 2015

My server must spit something out. That something must be passed over some network. I have no control over the network. The only thing I control is my server environment. From there I want to do whatever I can to provide offline support so that after that first visit I can reduce some of the risk the network introduces.

Network 72

Network Servers Website Technology 72

Smashing Magazine

JUNE 29, 2021

And once all that is done: remember Jamstack serves our apps from the edges of the Content Delivery Network. So we still need to move things from the server they were compiled at to the edges of the network. Under the hood, it simplifies a lot of the work to the server-side.

Cache 132

Cache Website Strategy Traffic 132

Alex Russell

MARCH 6, 2021

Thanks to progress in networks and browsers (but not devices), a more generous global budget cap has emerged for sites constructed the "modern" way: ~100KiB of HTML/CSS/fonts and ~300-350KiB of JS (compressed) is the new rule-of-thumb limit for at least the next year or two. Modern network performance and availability.

Performance 127

Performance Network Metrics Cache 127

CSS - Tricks

AUGUST 18, 2020

Yet, this criticism of React isn’t completely unwarranted: React and ReactDOM total about 120 KiB of minified JavaScript, which definitely contributes to slow startup time. Even if you render components on the server and hydrate them on the client, it still churns because component hydration is computationally expensive.

Performance 102

Performance Mobile Servers Code 102

SQL Performance

JANUARY 22, 2020

Table-valued parameters have been around since SQL Server 2008 and provide a useful mechanism for sending multiple rows of data to SQL Server, brought together as a single parameterized call. Add ( "Date" , typeof ( DateTime ) ) ; You can also create the DataTable using the inline definition as follows: System.

Servers 55

Servers Azure Hardware Network 55