CSS - Tricks

JULY 25, 2019

This article is from my friend Ben who runs Calibre , a tool for monitoring the performance of websites. In this article, we uncover how PageSpeed calculates it’s critical speed score. Estimated Input Latency. Estimated Input Latency. Related Articles. We use Calibre here on CSS-Tricks to keep an eye on things.

Google 71

Google Engineering Speed Mobile 71

Dynatrace

AUGUST 25, 2023

This article explores SLOs for service performance. If you’re new to SLOs and want to learn more about them, how they’re used, and best practices, see the additional resources listed at the end of this article. Performance typically addresses response times or latency aspects and contributes to the four golden signals.

Performance 174

Performance Latency Traffic Metrics 174

Dean Hume

APRIL 24, 2018

The title of this article might seem like clickbait - but bear with me. While this may not seem significant for websites with low traffic, as traffic to the site begins to increase, so does the amount of energy consumed. Jake Archibald has written a great article on this. That’s around 23% of all requests!

Energy 40

Energy Cache Traffic Website 40

Dean Hume

APRIL 24, 2018

The title of this article might seem like clickbait - but bear with me. While this may not seem significant for websites with low traffic, as traffic to the site begins to increase, so does the amount of energy consumed. Jake Archibald has written a great article on this. That’s around 23% of all requests!

Energy 40

Energy Cache Traffic Website 40

Dean Hume

APRIL 24, 2018

The title of this article might seem like clickbait - but bear with me. While this may not seem significant for websites with low traffic, as traffic to the site begins to increase, so does the amount of energy consumed. Jake Archibald has written a great article on this. That’s around 23% of all requests!

Energy 40

Energy Cache Traffic Website 40

Tim Kadlec

APRIL 18, 2019

I remember reading articles about how 3G connectivity was going to transform performance and, more generally, the way we used the internet altogether. Once a new network does get rolled out, it takes years for carriers to optimize it to try and close in on the promised bandwidth and latency benchmarks.

Network 61

Network Speed Internet Internet 61

The Symphonia

MAY 22, 2018

Fast forward to two years later and the article has had more than half a million visits, regularly appears in the top five Google search results for “Serverless”, and helped launched Symphonia ?—?my The fundamental structure of the article hasn’t changed?—?clearly I also wrote an article on just this area last year.

Serverless 40

Serverless Architecture Lambda Azure 40

Percona

SEPTEMBER 1, 2023

This reduction in latency ensures that applications and websites provide a more rapid and responsive user experience. This does not apply to read (SELECT) traffic. Improved Query Response Times One of the standout advantages of performance tuning lies in the significant enhancement of query response times.

Tuning 52

Tuning Database Performance Hardware 52

Scalegrid

MARCH 28, 2024

This article will explore how they handle data storage and scalability, perform in different scenarios, and, most importantly, how these factors influence your choice. Redis’s support for pipelining in a Redis server can significantly reduce network latency by batching command executions, making it beneficial for write-heavy applications.

Cache 130

Cache Storage Scalability Architecture 130

Smashing Magazine

AUGUST 3, 2023

It increases our visibility and enables us to draw a steady stream of organic (or “free”) traffic to our site. While paid marketing strategies like Google Ads play a part in our approach as well, enhancing our organic traffic remains a major priority. The higher our organic traffic, the more profitable we become as a company.

Performance 74

Performance Cache Traffic Metrics 74

IO River

NOVEMBER 2, 2023

Contrasting 5 Nines Availability Against Other Levels of AvailabilityAs discussed in this article, various levels of availability correspond to specific durations during which a service or system is expected to experience downtime. The stakes are even higher during high-traffic periods such as Black Friday or Cyber Monday.

Availability 52

Availability Social Media Traffic Games 52

IO River

NOVEMBER 2, 2023

Contrasting 5 Nines Availability Against Other Levels of AvailabilityAs discussed in this article, various levels of availability correspond to specific durations during which a service or system is expected to experience downtime. The stakes are even higher during high-traffic periods such as Black Friday or Cyber Monday.

Availability 52

Availability Social Media Traffic Games 52

Smashing Magazine

OCTOBER 31, 2023

Answering Common Questions About Interpreting Page Speed Reports Answering Common Questions About Interpreting Page Speed Reports Geoff Graham 2023-10-31T16:00:00+00:00 2023-10-31T17:06:18+00:00 This article is sponsored by DebugBear Running a performance check on your site isn’t too terribly difficult. That’s what this article is about.

Speed 99

Speed Google Website Metrics 99

The Netflix TechBlog

AUGUST 13, 2020

We also highlight interesting broader events such as regional traffic evacuations and nearby deployments , information that is vital to understanding health holistically. Regional traffic evacuations. For example, a latency increase is less critical than error rate increase and some error codes are less critical than others.

Monitoring 210

Monitoring Tuning Traffic Metrics 210

Brendan Gregg

SEPTEMBER 25, 2021

A Cassandra database cluster had switched to Ubuntu and noticed write latency increased by over 30%. 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.

Speed 126

Speed Java AWS Virtualization 126

The Netflix TechBlog

NOVEMBER 2, 2021

This article explains how we designed microservices and workflows on top of the Cosmos platform to bolster such video quality innovations. This enables us to use our scale to increase throughput and reduce latencies. Here, based on the video length, the throughput and latency requirements, available scale etc.,

Media 171

Media Innovation Metrics Latency 171

Percona

MAY 15, 2023

As illustrated above, ProxySQL allows us to set up a common entry point for the application and then redirect the traffic on the base of identified sharding keys. It will also allow us to redirect read/write traffic to the primary and read-only traffic to all secondaries. I will eventually increase them if I see the need.

Traffic 124

Traffic Scalability Database Servers 124

Smashing Magazine

AUGUST 10, 2023

Running A Page Speed Test: Monitoring vs. Measuring Running A Page Speed Test: Monitoring vs. Measuring Geoff Graham 2023-08-10T08:00:00+00:00 2023-08-10T12:35:05+00:00 This article is sponsored by DebugBear There is no shortage of ways to measure the speed of a webpage. Real usage data would be better, of course.

Speed 82

Speed Monitoring Testing Network 82

The Morning Paper

JULY 4, 2019

Two failure modes we focus on are a service becoming slower (increase in response latency) or a service failing outright (returning errors). The criticality score is combined with a safety score and experiment weight (failure experiments, then latency, than failure inducing latency) to produce the final prioritization score.

Latency 77

Latency Engineering Metrics Traffic 77

KeyCDN

FEBRUARY 4, 2021

Oddly enough we encountered this error to a third party website while writing this article. A quick way to fix this is simply by temporarily changing the TTL (time to live) setting for the DNS record, and route your traffic to the second DNS server until the outage is fixed. So DNS services definitely go down!

Cache 134

Cache Website Internet Internet 134

Scalegrid

JANUARY 12, 2024

This article analyzes cloud workloads, delving into their forms, functions, and how they influence the cost and efficiency of your cloud infrastructure. Simply put, it’s the set of computational tasks that cloud systems perform, such as hosting databases, enabling collaboration tools, or running compute-intensive algorithms.

Cloud 130

Cloud Virtualization Storage Efficiency 130

Brendan Gregg

SEPTEMBER 25, 2021

A Cassandra database cluster had switched to Ubuntu and noticed write latency increased by over 30%. 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.

Speed 52

Speed Java AWS Virtualization 52

Highly Scalable

MAY 1, 2012

This approach often leads to heavyweight high-latency analytical processes and poor applicability to realtime use cases. In this article, I provide an overview of probabilistic data structures that allow one to estimate these and many other metrics and trade precision of the estimations for the memory consumption. Case Study.

Analytics 191

Analytics Traffic Big Data Efficiency 191

Brendan Gregg

SEPTEMBER 25, 2021

A Cassandra database cluster had switched to Ubuntu and noticed write latency increased by over 30%. 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.

Speed 40

Speed Java AWS Virtualization 40

Smashing Magazine

MAY 20, 2020

This article will help you with exactly that. The metrics selection is outside of the scope of this article and depends highly on the project context, but I recommend that you start by reading User-centric Performance Metrics by Philip Walton. This saves clients traffic — sometimes traffic which the client is paying for.

Performance 99

Performance Metrics Best Practices Code 99

Smashing Magazine

AUGUST 22, 2021

HTTP/3 performance features ( current article ). Because we are dealing with network protocols here, we will mainly look at network aspects, of which two are most important: latency and bandwidth. 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).

Performance 106

Performance Network Latency Servers 106

Particular Software

AUGUST 16, 2021

Cosmos DB is available in serverless mode which is ideal for spikes or unpredictable workloads that don’t have sustained traffic. But where Cosmos DB really shines is for systems that require worldwide low latency with flexible pricing. It’s also great for a non-production scenario or for building a proof of concept.

Azure 52

Azure Serverless Storage Database 52

Smashing Magazine

SEPTEMBER 24, 2021

That was until we went to production with our highest traffic customer. It can be hosted on a CDN like Vercel or Netlify, which results in lower latency. The small adjustments we made, the lessons learned from this article, really helped with this. From the moment we went live, we experienced performance issues. Challenges.

Website 115

Website Code Servers Analytics 115

Smashing Magazine

AUGUST 9, 2021

You’ve probably heard things like: “HTTP/3 is much faster than HTTP/2 when there is packet loss”, or “HTTP/3 connections have less latency and take less time to set up”, and probably “HTTP/3 can send data more quickly and can send more resources in parallel”. We will discuss these features in more depth later in this article.

Transportation 145

Transportation Internet Internet Network 145

CSS - Tricks

NOVEMBER 1, 2019

I faced clients who requested support of IE 10- IE 11 because the traffic from those users represented 1%, which equalled millions of dollars in revenue. Latency matters. Artem told me he’d like to thank Rick Viscomi, Rob Austin, and Aleksey Kulikov for their help in reviewing the article. 30% - more than 1.5 second for FCP. ~12%

Speed 46

Speed Mobile Metrics Scalability 46

Percona

APRIL 17, 2023

The swap issue is explained in the excellent article by Jeremy Cole at the Swap Insanity and NUMA Architecture. The CFQ works well for many general use cases but lacks latency guarantees. The deadline excels at latency-sensitive use cases ( like databases ), and noop is closer to no schedule at all.

Best Practices 52

Best Practices Design Tuning Database 52

Smashing Magazine

SEPTEMBER 6, 2021

Practical HTTP/3 deployment options ( current article ). You would, however, be hard-pressed even today to find a good article that details the nuanced best practices. Finally, not inlining resources has an added latency cost because the file needs to be requested. HTTP/3 performance features. Changes To Pages And Resources.

Network 106

Network Servers Cache Traffic 106

Alex Russell

MARCH 6, 2021

Sadly, data on latency is harder to get, even from Google's perch, so progress there is somewhat more difficult to judge. CrUX data collection and first-party RUM analytics of these metrics require live traffic, meaning results can be predicted but only verified once deployed.

Performance 124

Performance Network Cache Metrics 124

Percona

JULY 1, 2023

It efficiently manages read and write operations, optimizes data access, and minimizes contention, resulting in high throughput and low latency to ensure that applications perform at their best. If you need to enable Amazon RDS remote access, this article will help you do so.

AWS 52

AWS Database Serverless Storage 52

Alex Russell

OCTOBER 22, 2017

Contended, over-subscribed cells can make “fast” networks brutally slow, transport variance can make TCP much less efficient , and the bursty nature of web traffic works against us. It simulates a link with a 400ms RTT and 400-600Kbps of throughput (plus latency variability and simulated packet loss). 50KB/s * 3.4 = 170KB.

Performance 68

Performance Benchmarking Network Mobile 68

Brendan Gregg

SEPTEMBER 5, 2017

I wrote an ftrace toolkit, [perf-tools], and the article [Ftrace: the hidden light switch]. - **perf**: since 2009, this started as a PMC profiler but can do tracing now as well, usually in a dump-and-post-process style. Here's some output from my zfsdist tool, in bcc/BPF, which measures ZFS latency as a histogram on Linux: # zfsdist.

Virtualization 76

Virtualization AWS Engineering Hardware 76

Smashing Magazine

JANUARY 11, 2021

CrUX generates an overview of performance distributions over time, with traffic collected from Google Chrome users. But account for the different types and usage behaviors of your customers (which Tobias Baldauf called cadence and cohorts ), along with bot traffic and seasonality effects. You can create your own on Chrome UX Dashboard.

Performance 145

Performance Cache Media Metrics 145