CSS Wizardry

MAY 31, 2019

A classic example is jQuery, that we might link to like so: There are a number of perceived benefits to doing this, but my aim later in this article is to either debunk these claims, or show how other costs vastly outweigh them. Users might already have the file cached. What Am I Talking About? Risk: Slowdowns and Outages.

Cache 274

Cache Latency Infrastructure Website 274

Adrian Cockcroft

JANUARY 29, 2023

The common way to deal with this is to measure percentiles, and track the 90%, 99% response times for example. For example lets say you have a 99% within 2 seconds SLA, and your current 99%ile measured over one minute is 1 second. However it’s very difficult to decide what the right SLA is, or to tell how close you are to exceeding it.

Lambda 98

Lambda Latency Cache C++ 98

CSS Wizardry

AUGUST 7, 2019

The first—and often most surprising for people to learn—thing that I want to draw your attention to is that TTFB counts one whole round trip of latency. The reason is because mobile networks are, as a rule, high latency connections. only to find that the resource they’re requesting isn’t in that PoP ’s cache.

Latency 269

Latency Ecommerce Servers Mobile 269

Smashing Magazine

SEPTEMBER 28, 2022

Every unnecessary bit of JavaScript code you bundle and serve will be more code the client has to load and process. How will you serve blazingly fast code, then? Jamstack is popular with documentation sites that usually compile code to HTML files and host them on the CDN. Active Memory Caching. Caching Schemes.

Cache 126

Cache Performance Servers Social Media 126

The Netflix TechBlog

JULY 12, 2019

The Tech Hollow , an OSS technology we released a few years ago, has been best described as a total high-density near cache : Total : The entire dataset is cached on each node?—?there there is no eviction policy, and there are no cache misses. Near : the cache exists in RAM on any instance which requires access to the dataset.

Cache 183

Cache Architecture Latency Engineering 183

Smashing Magazine

MAY 16, 2022

In this piece, we will dive deeper to show how Server-Timing headers are so uniquely powerful, show some practical examples by solving challenging monitoring problems with this header, and provoke some creative inspiration by combining this technique with service workers. Let’s look at this in a complete example.

Servers 93

Servers Monitoring Cache Network 93

All Things Distributed

SEPTEMBER 3, 2013

Get it wrong and you’re looking at sleepless nights, struggling to keep up with growth and fighting to keep your app available while you rewrite critical portions of your code. Amazon ElastiCache is a fully managed, in-memory caching service for customers to optimize the latency, performance and cost of their read workloads.

Cache 129

Cache Cloud Performance Retail 129

All Things Distributed

JUNE 21, 2017

Today, I'm excited to announce the general availability of Amazon DynamoDB Accelerator (DAX) , a fully managed, highly available, in-memory cache that can speed up DynamoDB response times from milliseconds to microseconds, even at millions of requests per second. Adding caching when your app is already experiencing load is not easy.

Speed 121

Speed Cache Latency AWS 121

High Scalability

JULY 20, 2018

And if you know anyone looking for a simple book that uses lots of pictures and lots of examples to explain the cloud, then please recommend my new book: Explain the Cloud Like I'm 10. Cliff Click : The JVM is very good at eliminating the cost of code abstraction, but not the cost of data abstraction. They'll love you even more.

Internet 121

Internet Internet Scalability Automotive 121

CSS - Tricks

APRIL 1, 2021

The code for the site is available on GitHub for reference. Redirects are often pretty light in terms of the latency that they add to a website, but they are an easy first thing to check, and they can generally be removed with little effort. This is a very basic site made with simple HTML, CSS, and JavaScript.

Cache 92

Cache Social Media Media Network 92

Brendan Gregg

JULY 2, 2021

biolatency Disk I/O latency histogram heat map. cachestat File system cache statistics line charts. runqlat CPU scheduler latency heat map. There is already documentation as man pages and example files in the bcc and bpftrace repositories that you can link to, to help your customers understand the tool output.

Latency 145

Latency Cache Energy Systems 145

Smashing Magazine

AUGUST 3, 2023

HTML Processing Once a web page’s HTML file has been downloaded, the browser begins to process the contents line by line, translating code into the visual website that users interact with. Here are some examples: Looker Studio filter. The shorter the TTFB, the better the perceived speed of the site from the user’s perspective.

Performance 74

Performance Cache Traffic Metrics 74

ScaleOut Software

MAY 15, 2014

We have spent a great deal of time at ScaleOut Software re-architecting our in-memory data grid (IMDG)’s code base to make best use of many cores and large memory. For example, the IMDG must be able to efficiently create millions of objects in each server to make use of its huge storage capacity. Please retry later.

Cache 40

Cache Servers Network Design 40

Brendan Gregg

AUGUST 18, 2019

It was created by Alastair Robertson, a talented UK-based developer who has previously won various coding competitions. For example, iostat(1), or a monitoring agent, may tell you your average disk latency, but not the distribution of this latency. This example instrumented one of many thousands of available events.

Latency 68

Latency C++ Cache Programming 68

Smashing Magazine

JANUARY 11, 2021

Have we optimized enough with tree-shaking, scope hoisting, code-splitting, and all the fancy loading patterns with intersection observer, progressive hydration, clients hints, HTTP/3, service workers and — oh my — edge workers? It’s much easier to reach performance goals when the code base is fresh or is just being refactored.

Performance 145

Performance Cache Media Metrics 145

The Netflix TechBlog

MARCH 6, 2019

Disk Caching? — ? MezzFS can be configured to cache objects on the local disk. Regional caching? —?Netflix If an application in region A is using MezzFS to read from an object stored in region B, MezzFS will cache the object in region A. we only pay the transfer costs for one worker, and the rest use the cached object.

Media 214

Media Storage Processing Cache 214

The Morning Paper

OCTOBER 26, 2020

It’s limited by the laws of physics in terms of end-to-end latency. Industrial IoT use cases are an example here. We saw earlier that there is end-user pressure to replace batch systems with much lower latency online systems. It makes heavy use of comparatively expensive data-center computing facilities. Emphasis mine ).

Cloud 104

Cloud Big Data Latency Architecture 104

All Things Distributed

JUNE 21, 2018

Developers rely on the functionality of the relational database (not the application code) to enforce the schema and preserve the referential integrity of the data within the database. Airbnb is a great example of a customer building high-performance and scalable applications with Amazon Aurora. Take Expedia, for example.

Database 167

Database AWS Games Latency 167

The Netflix TechBlog

NOVEMBER 4, 2019

As an example, our data is centered around a creative service to keep track of the creatives we build. Best of all, our page can load much faster since everything is cached in Elasticsearch. For example, if a title ranking changes, we need to find the related show, then its corresponding creative, and reindex it.

Cache 240

Cache Database Servers Latency 240

IO River

NOVEMBER 2, 2023

For example, consider the following scenario :‍Figure: A Vendor Lock-in Architecture‍You've used Amazon S3 to host your static site and content and Amazon API Gateway to host your APIs that clients will use to decide on the static content to fetch. Akamai tried to convince many users to use this new framework.

Lambda 52

Lambda AWS Cache Website 52

CSS Wizardry

MAY 19, 2020

It’s widely accepted that self-hosted fonts are the fastest option: same origin means reduced network negotiation, predictable URLs mean we can preload , self-hosted means we can set our own cache-control. On a high-latency connection, this spells bad news. Put another-other way, this file is latency-bound, not bandwidth-bound.

Google 364

Google Media Latency Metrics 364

Alex Russell

DECEMBER 18, 2022

These devices feature: Eight slow, big.LITTLE ARM cores (A75+A55, or A73+A53) built on last-generation processes with very little cache. For example, let's say you send more HTML and less JavaScript, or your serving game is on lock and all critical assets load over a single H/2 link. 4GiB of RAM. Qualcomm has some 'splainin to do.

Performance 113

Performance Network Mobile Latency 113

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? It’s much easier to reach performance goals when the code base is fresh or is just being refactored.

Performance 145

Performance Cache Network Metrics 145

Dotcom-Montior

MARCH 6, 2022

If the waiting time is too much, it may mean an overloaded network server or there may be an inefficient code, which must be fixed by software developers by finding the bugs and correcting the code. Moreover, caching utility may decrease the waiting time. The time captured by the server to produce a response. Queued request.

Performance 52

Performance Cache Website Speed 52

IO River

NOVEMBER 2, 2023

CloudFront makes a simple choice here as it offers direct integration with all these services to let you cache responses across its global edge locations. Later on, your service might require security, and you might use AWS Web Application Firewall, which directly integrates with Amazon CloudFront to help secure your service. ‍

Lambda 52

Lambda AWS Cache Website 52

All Things Distributed

JULY 14, 2015

Streams provide you with the underlying infrastructure to create new applications, such as continuously updated free-text search indexes, caches, or other creative extensions requiring up-to-date table changes. An AWS Lambda function is a simpler option that you can use, as it only requires you to code the logic, set it, and forget it.

Database 167

Database Lambda AWS IoT 167

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? Estimated Input Latency tells us if we are hitting that threshold, and ideally, it should be below 50ms.

Performance 104

Performance Cache Network Metrics 104

Smashing Magazine

SEPTEMBER 24, 2021

To mitigate the performance issues, we had to add a lot of (unbudgeted) extra servers and had to aggressively cache pages on a reverse proxy. It can be hosted on a CDN like Vercel or Netlify, which results in lower latency. The code you write visualizes instantly in your browser and productivity goes through the sky. Challenges.

Website 114

Website Code Servers Analytics 114

ScaleOut Software

JULY 21, 2020

For more than fifteen years, ScaleOut StateServer® has demonstrated technology leadership as an in-memory data grid (IMDG) and distributed cache. Application code is automatically shipped by the client library to the IMDG for execution and runs fully in parallel across all servers for maximum performance.

Analytics 52

Analytics Airlines Cache Scalability 52

ScaleOut Software

JULY 21, 2020

For more than fifteen years, ScaleOut StateServer® has demonstrated technology leadership as an in-memory data grid (IMDG) and distributed cache. Application code is automatically shipped by the client library to the IMDG for execution and runs fully in parallel across all servers for maximum performance.

Analytics 52

Analytics Airlines Cache Scalability 52

Smashing Magazine

AUGUST 20, 2021

However, unlike the early days of the web, static sites are no longer limited to developers working in a code editor. Piecing together a website using a WYSIWYG editor and seeing the code it generated was a fascinating and educational experience that sparked an initial interest in web design. Let’s fix that! Online, and live.

Ecommerce 139

Ecommerce Website Government Internet 139

The Morning Paper

APRIL 14, 2019

Microarchitectural state of interest includes data and instruction caches, TLBs, branch predictors, instruction- and data-prefetcher state machines, and DRAM row buffers. cache) can be partitioned across domains; for those that are instead time-multiplexed, we have to flush them during domain switches. IPC) input and output channels.

Hardware 44

Hardware Cache Latency Speed 44

Dotcom-Montior

MAY 6, 2020

If the waiting time is too much, it may mean an overloaded network server or there may be an inefficient code, which must be fixed by software developers by finding the bugs and correcting the code. Moreover, caching utility may decrease the waiting time. The time captured by the server to produce a response. Queued request.

Performance 53

Performance Cache Website Speed 53

Smashing Magazine

AUGUST 22, 2021

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). Two-way latency is often called round-trip time (RTT).

Performance 106

Performance Network Latency Servers 106

The Netflix TechBlog

NOVEMBER 4, 2019

As an example, our data is centered around a creative service to keep track of the creatives we build. Best of all, our page can load much faster since everything is cached in Elasticsearch. For example, if a title ranking changes, we need to find the related show, then its corresponding creative, and reindex it.

Cache 112

Cache Database Servers Latency 112

The Morning Paper

MAY 12, 2019

The paper examines the implications of microservices at the hardware, OS and networking stack, cluster management, and application framework levels, as well as the impact of tail latency. Smaller microservices demonstrated much better instruction-cache locality than their monolithic counterparts. Hardware implications.

Open Source 61

Open Source Hardware Benchmarking Systems 61

The Morning Paper

NOVEMBER 17, 2019

The serverless computing abstraction, despite its many advantages, exposes several low-level operational details that make it hard for programmers to write and reason about their code. For example, to reduce latency, serverless platforms try to reuse the same function instance to process multiple requests. Don’t do that!

Serverless 58

Serverless Lambda Programming Cache 58