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

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 103

Performance Cache Metrics Network 103

Speed Curve

JUNE 18, 2019

Some sort of performance gateway that only allows changes to production code if they meet performance requirements? 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. Break the build!

Performance Testing 49

Performance Testing Testing Performance Cache 49

KeyCDN

SEPTEMBER 12, 2019

KeyCDN’s Cache Enabler plugin is fully compatible the HTML attributes that make images responsive. The main reason is because it decreases the latency to the user where they are located by serving your images from a POP physically closest to them. The Cache Enabler plugin then delivers WebP images based to supported browsers.

Social Media 106

Social Media Media Google Website 106

John McCalpin

NOVEMBER 5, 2016

So consider the dense matrix multiplication operation C += A*B, where A, B, and C are dense square matrices of order N, and the matrix multiplication operation is equivalent to the pseudo-code: for (i=0; i<N; i++) { for (j=0; j<N; j++) { for (k=0; k<N; k++) { C[i][j] += A[i][k] * B[k][j]; } } }.

Cache 40

Cache C++ Latency Hardware 40

Rigor

DECEMBER 19, 2019

Let’s start with a brief definition of two of the more prominent web performance methodologies: synthetic monitoring and real user monitoring (also known as RUM). As a result, users can identify latency and downtime promptly, and they can then scientifically isolate and diagnose the root cause of any performance issues that may arise.

Monitoring 40

Monitoring Benchmarking Website Traffic 40

SQL Server According to Bob

JANUARY 11, 2020

Stable media is commonly physical disk storage, but other devices and certain caching facilities qualify as well. Many high-end disk subsystems provide high-speed cache facilities to reduce the latency of read and write operations. This cache is often supported by a battery-powered backup facility.

Servers 40

Servers Cache Media Hardware 40

Alex Russell

OCTOBER 22, 2017

For this page to be done loading it needs to be responsive to user input — the “interactive” in “Time to Interactive” Browsers process user input by generating DOM events that application code listens to. Simulated packet loss and variable latency, however, can make benchmarking extremely difficult and slow.

Performance 68

Performance Benchmarking Network Mobile 68

The Symphonia

MAY 22, 2018

I was a little restricted in my thinking the first time around and I’ve come to see FaaS as something not quite stateless, since caching state in a Lambda instance that might stick around for 5 hours is a perfectly reasonable idea. I also rewrote the section on Startup Latency since Cold Starts are one of the big “FUD” areas of Serverless.

Serverless 40

Serverless Architecture Lambda Azure 40

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

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

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. is amazing, but there are definitely some challenges. Lint And Format Your Code. Challenges.

Website 113

Website Code Servers Analytics 113

The Netflix TechBlog

NOVEMBER 4, 2019

At a minimum, we extract all of the type definitions from the GraphQL query and map them to a schema for Elasticsearch to use. Best of all, our page can load much faster since everything is cached in Elasticsearch. Keeping Everything Up To Date Indexing the data once isn’t enough. Our data changes constantly?—?

Cache 240

Cache Database Servers Latency 240

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 105

Performance Network Latency Servers 105

The Netflix TechBlog

NOVEMBER 4, 2019

At a minimum, we extract all of the type definitions from the GraphQL query and map them to a schema for Elasticsearch to use. Best of all, our page can load much faster since everything is cached in Elasticsearch. Keeping Everything Up To Date Indexing the data once isn’t enough. Our data changes constantly?—?

Cache 112

Cache Database Servers Latency 112

The Netflix TechBlog

NOVEMBER 4, 2019

At a minimum, we extract all of the type definitions from the GraphQL query and map them to a schema for Elasticsearch to use. Best of all, our page can load much faster since everything is cached in Elasticsearch. Keeping Everything Up To Date Indexing the data once isn’t enough. Our data changes constantly?—?

Cache 100

Cache Database Servers Latency 100

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”. Conclusion. Let’s summarize what we’ve learned in this part.

Transportation 145

Transportation Internet Internet Network 145