The Netflix TechBlog

APRIL 29, 2019

Content is placed on the network of servers in the Open Connect CDN as close to the end user as possible, improving the streaming experience for our customers and reducing costs for both Netflix and our Internet Service Provider (ISP) partners. takes place in Amazon Web Services (AWS), whereas everything that happens afterwards (i.e.,

Open Source 279

Open Source Network Infrastructure Big Data 279

IO River

NOVEMBER 2, 2023

With the ever-growing demands of the internet, websites and web applications face the challenge of delivering content swiftly and efficiently to users worldwide. Think of a CDN Load Balancer (or LB, if you like to keep things short and sweet) as the internet’s traffic police. But how does it decide where to send this traffic?

Traffic 40

Traffic Cache Network Servers 40

Brendan Gregg

SEPTEMBER 25, 2021

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. This server is spending about a third of its CPU cycles just checking the time! Colleagues/Internet I love using [Linux performance tools].

Speed 126

Speed Java AWS Virtualization 126

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. Did You Know?

Transportation 145

Transportation Internet Internet Network 145

IO River

NOVEMBER 2, 2023

In technical terms, network-level firewalls regulate access by blocking or permitting traffic based on predefined rules. At its core, WAF operates by adhering to a rulebook—a comprehensive list of conditions that dictate how to handle incoming web traffic. You've put new rules in place.

Traffic 40

Traffic Network Logistics Architecture 40

KeyCDN

MARCH 10, 2021

Dubai - UAE Dubai has grown significantly over the past decades, not just demographically but also in terms of internet penetration. With an internet penetration of almost 92% , the UAE is among the highest worldwide. With Tel Aviv being the technology capital of Israel, it's the ideal edge server location.

Latency 110

Latency Internet Internet Tuning 110

Brendan Gregg

SEPTEMBER 25, 2021

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. This server is spending about a third of its CPU cycles just checking the time! Colleagues/Internet I love using [Linux performance tools].

Speed 40

Speed Java AWS Virtualization 40

Smashing Magazine

AUGUST 22, 2021

This is because HTTP/3 and QUIC mainly help deal with the somewhat uncommon yet potentially high-impact problems that can arise on today’s Internet. 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 105

Performance Network Latency Servers 105

Brendan Gregg

SEPTEMBER 5, 2017

Oracle VM Server is based on Xen. 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). Outside of EC2, many other providers are deploying on KVM. I also wrote and published an entertaining SMF manifest that played music.

Virtualization 76

Virtualization AWS Engineering Hardware 76