IO River

NOVEMBER 2, 2023

Now, with viewers all over the world expecting flawless and high-definition streaming, video providers have their work cut out for them. This type of traffic originates directly from the server, making it more challenging to handle due to latency and server load considerations; it’s hard but not impossible. Those days are long gone.

Architecture 52

Architecture Performance Internet Internet 52

IO River

NOVEMBER 2, 2023

Now, with viewers all over the world expecting flawless and high-definition streaming, video providers have their work cut out for them. This type of traffic originates directly from the server, making it more challenging to handle due to latency and server load considerations; it’s hard but not impossible. Those days are long gone.

Architecture 52

Architecture Performance Internet Internet 52

Speed Curve

FEBRUARY 5, 2024

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. Latency – How much time does it take to deliver a packet from A to B. Definitely worth a read! I mean, why wouldn't we? Also measured by round trip time (RTT).

Servers 57

Servers Cache Retail Benchmarking 57

Smashing Magazine

AUGUST 3, 2023

Core Web Vital metrics definitions. Largest Contentful Paint (LCP) LCP measures the perceived load speed of a webpage from a user’s perspective. I know that is a lot of information to unpack in a single sitting, and it definitely took our team time to wrap our minds around what it takes to achieve a low LCP score.

Performance 74

Performance Cache Traffic Metrics 74

Dynatrace

DECEMBER 2, 2021

To get a better handle on this, let’s start with some definitions. You can set SLOs based on individual indicators, such as batch throughput, request latency, and failures-per-second. SLOs also set the stage for automating processes so you can speed up issue discovery and remediation before customers are impacted.

Metrics 200

Metrics Best Practices DevOps Infrastructure 200

Alex Russell

JANUARY 30, 2024

HTML, CSS, images, and fonts can all be parsed and run at near wire speeds on low-end hardware, but JavaScript is at least three times more expensive, byte-for-byte. India's speed test medians are moving quickly, but variance is orders-of-magnitude wide, with 5G penetration below 25% in the most populous areas.

Performance 90

Performance Network Mobile Speed 90

Speed Curve

MAY 1, 2023

If you've invested countless hours in speeding up your pages, but you're not using performance budgets to prevent regressions, you could be at risk of wasting all your efforts. INP logs the latency of all interactions throughout the entire page lifecycle. It's easier to make a fast website than it is to keep a website fast.

Performance 98

Performance Metrics Media Google 98

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”. Because we are dealing with network protocols here, we will mainly look at network aspects, of which two are most important: latency and bandwidth. Congestion Control.

Performance 106

Performance Network Latency Servers 106

CSS - Tricks

APRIL 1, 2021

Speed is also something Google considers when ranking your website placement on mobile. With all of this in mind, I thought improving the speed of my own version of a slow site would be a fun exercise. I’m going to update my referenced URL to the new site to help decrease latency that adds drag to the initial page load.

Cache 92

Cache Social Media Media Network 92

CSS - Tricks

MARCH 16, 2020

But equally, Simon the project manager may not understand what Speed Index or First Contentful Paint means, but when he sees the Lighthouse report showing website performance score knee deep in the red, he knows you still have work to do. If your latency is higher than 50ms, users may perceive your app as laggy. Hello world.

Google 82

Google Latency Website Metrics 82

Testsigma

JULY 23, 2020

Let’s briefly describe the basic definitions of each of them first and then describe in detail the underlying differences that make them fall apart in certifying the quality of each of them. Any network-related latencies result in performance hindrances in these types of applications.

Testing 63

Testing Internet Internet Latency 63

Particular Software

JUNE 3, 2019

We now live in an age when it's possible to stream high definition TV, and yet we are not satisfied. We become annoyed when we run a speed test on our broadband provider only to find that, on a good day, we are getting maybe half of the rated download speed we are paying for, and the upload speed is likely much worse.

Latency 40

Latency Speed Network Strategy 40

Randon ASCII

AUGUST 30, 2020

Software developer productivity is intimately tied to the latency of the edit/ compile /link/debug cycle. I was hopeful that there might be some way to speed up those calculations and maybe save five seconds or so from startup time. It’s like a virus which evolves to make people cough, but not kill them. Slow startup.

Games 142

Games Servers Code Monitoring 142

All Things Distributed

JULY 14, 2015

No matter which mechanism you choose to use, we make the stream data available to you instantly (latency in milliseconds) and how fast you want to apply the changes is up to you. Cross-region replication allows us to distribute data across the world for redundancy and speed. ” DynamoDB Cross-region Replication. DynamoDB Triggers.

Database 167

Database Lambda AWS IoT 167

The Morning Paper

MAY 21, 2019

This boils down to a single digit µs latency toleration in the tail for far memory, and in addition to security and privacy concerns, rules out remote memory solutions. Thus we’re fundamentally trading (de)-compression latency at access time for the ability to pack more data in memory.

Software 78

Software Software Google Hardware 78

CSS - Tricks

AUGUST 16, 2019

Later in the piece, Mod describes fast software as being the very definition of good software and argues that every action on a computer — whether that’s a website or an app — should feel as if you’re moving without any latency whatsoever. It ought to be un-shippable until the thing is fast.

Performance 50

Performance Website Speed Latency 50

Speed Curve

DECEMBER 4, 2023

Latency is traditionally worse on mobile Despite improved network conditions in some parts of the world, round trip time is still much worse for mobile than desktop. The elephant in the room: Why does mobile INP perform so poorly? And why does desktop do so well? We are still working on understanding that. Here are some theories I explored.

Mobile 54

Mobile Performance Metrics Google 54

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. Image CDN Using a content delivery network like KeyCDN, or what we also call an image CDN , can be one of the easiest and fastest ways to speed up the delivery of your images.

Social Media 106

Social Media Media Google Website 106

Alex Russell

MARCH 6, 2021

Recall that single-core performance most directly translates into speed on the web. OpenSignal's global report on connection speeds ( pdf ) suggest that WebPageTest's default 4G configuration (9Mbps w/ 170ms RTT) is a reasonable stand-in for the P75 network link. Updated Geekbench 4 single-core scores for each mobile price-point."

Performance 124

Performance Network Cache Metrics 124

Percona

MAY 2, 2023

The speed of backup also depends on allocated IOPS and type of storage since lots of read/writes would be happening during this process. PBM uses the faster “s2” library and parallelized threads to improve speed and performance if extra threads are available as resources. Records backup progress logging.

Best Practices 52

Best Practices Database Storage Servers 52

The Morning Paper

NOVEMBER 17, 2019

For example, to reduce latency, serverless platforms try to reuse the same function instance to process multiple requests. Serverless functions are stateless , but can opportunistically reuse cached state across invocations to speed up start times. a persistent store with transaction support).

Serverless 58

Serverless Lambda Programming Cache 58

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

Speed Curve

JUNE 18, 2019

Here's a short (and definitely not exhaustive) list of things that you may want to consider when running performance tests on an integration environment: Caches may need to be warmed up beforehand. Network latency will affect performance testing. The slightly more complex answer is: it depends.

Performance Testing 49

Performance Testing Testing Performance Cache 49

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

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. It simulates a link with a 400ms RTT and 400-600Kbps of throughput (plus latency variability and simulated packet loss). Global Ground-Truth. Deciding what benchmark to use for a performance budget is crucial.

Performance 68

Performance Benchmarking Network Mobile 68

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 104

Performance Cache Network Metrics 104

John McCalpin

NOVEMBER 5, 2016

These cores have 2 functional units supporting Vector Fused Multiply-Add instructions, with 5-cycle latency on Haswell/Broadwell and 4-cycle latency on Skylake processors (ref: [link] ). With 2 FMA units that have 5-cycle latency, the code must implement at least 2*5=10 independent accumulators in order to avoid stalls.

Cache 40

Cache C++ Latency Hardware 40

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. Finally, not inlining resources has an added latency cost because the file needs to be requested. In our own early tests , I found seriously diminishing returns at about 40 files.

Network 105

Network Servers Cache Traffic 105

Brendan Gregg

SEPTEMBER 5, 2017

Here's some output from my zfsdist tool, in bcc/BPF, which measures ZFS latency as a histogram on Linux: # zfsdist. Tracing ZFS operation latency. 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). Hit Ctrl-C to end. ^C

Virtualization 76

Virtualization AWS Engineering Hardware 76

SQL Server According to Bob

JANUARY 11, 2020

Many high-end disk subsystems provide high-speed cache facilities to reduce the latency of read and write operations. This allows the checkpoint process to maintain its speed while the random nature of the I/O requests deters any elevator seeking that could ​​ affect ​​ other I/O operations.

Servers 40

Servers Cache Media Hardware 40