Dynatrace

JULY 13, 2020

Cloud Native DevOps with Kubernetes : . Cloud: A utomation of infrastructure and services on-demand, pay as you use model . Cloud-native? refers to cloud-based, containerized, distributed systems, made up of cooperating microservices, dynamically managed by automated infrastructure as code. . ?

Google 130

Google Ecommerce DevOps Cloud 130

Brendan Gregg

NOVEMBER 28, 2017

Hardware virtualization for cloud computing has come a long way, improving performance using technologies such as VT-x, SR-IOV, VT-d, NVMe, and APICv. At Netflix, we've been using these technologies as they've been made available for instance types in the AWS EC2 cloud. Each dimension has progressed through these stages: 1.

Virtualization 40

Virtualization AWS Hardware Storage 40

Brendan Gregg

JULY 4, 2021

It's an exciting time for developments in computer performance, not just for the BPF technology (which I often [write about]) but also for processors with 3D stacking and cloud vendor CPUs (e.g., Ford, et al., “TCP on Upcoming Sapphire Rapids CPUs,” [link] Oct 2020 - [Liu 20] Linda Liu, “Samsung QVO vs EVO vs PRO: What’s the Difference?

Performance 140

Performance Latency Hardware Storage 140

Brendan Gregg

SEPTEMBER 25, 2021

These strange questions came to the fore back in 2014 when Netflix was switching services from CentOS Linux to Ubuntu, and I helped debug several weird performance issues including one I'll describe here. CLI tools The Cassandra systems were EC2 virtual machine (Xen) instances. How long does it take to read the time?

Speed 126

Speed Java AWS Virtualization 126

Brendan Gregg

MARCH 16, 2024

2014: Java in Flames Broken Java Stacks (2014) When I joined Netflix in 2014, I found Java's lack of frame pointer support broke all application stacks (pictured in my 2014 Surge talk on the right). I spent years as a cloud customer where I couldn't access many HW-level things.) I haven't used it. (I

Java 145

Java Cache Google Hardware 145

Brendan Gregg

FEBRUARY 28, 2023

TCP Extensions for Multipath Operation with Multiple Addresses,” [link] , Mar 2020 [Gregg 20] Brendan Gregg, “Systems Performance: Enterprise and the Cloud, Second Edition,” Addison-Wesley, 2020 [Hruska 20] Joel Hruska, “Intel Demos PCIe 5.0 Ford, et al., “TCP

Performance 52

Performance Latency Cache Virtualization 52

Brendan Gregg

JULY 4, 2021

It's an exciting time for developments in computer performance, not just for the BPF technology (which I often [write about]) but also for processors with 3D stacking and cloud vendor CPUs (e.g., Ford, et al., “TCP on Upcoming Sapphire Rapids CPUs,” [link] Oct 2020 - [Liu 20] Linda Liu, “Samsung QVO vs EVO vs PRO: What’s the Difference?

Performance 52

Performance Latency Hardware Storage 52

Brendan Gregg

DECEMBER 31, 2017

My last talk for 2017 was at AWS re:Invent, on "How Netflix Tunes EC2 Instances for Performance," an updated version of my [2014] talk. Virtual Memory. Not a lot has changed with these tunables since my [2014] talk. Donovan Fritz and Joel Kodama (networking) A Day in the Life of a Cloud Network Engineer at Netflix.

Tuning 61

Tuning AWS Best Practices Network 61

Brendan Gregg

DECEMBER 30, 2017

My last talk for 2017 was at AWS re:Invent, on "How Netflix Tunes EC2 Instances for Performance," an updated version of my [2014] talk. Virtual Memory. Not a lot has changed with these tunables since my [2014] talk. Donovan Fritz and Joel Kodama (networking) A Day in the Life of a Cloud Network Engineer at Netflix.

Tuning 52

Tuning AWS Best Practices Network 52

Brendan Gregg

SEPTEMBER 25, 2021

These strange questions came to the fore back in 2014 when Netflix was switching services from CentOS Linux to Ubuntu, and I helped debug several weird performance issues including one I'll describe here. CLI tools The Cassandra systems were EC2 virtual machine (Xen) instances. How long does it take to read the time?

Speed 40

Speed Java AWS Virtualization 40

Brendan Gregg

SEPTEMBER 25, 2021

These strange questions came to the fore back in 2014 when Netflix was switching services from CentOS Linux to Ubuntu, and I helped debug several weird performance issues including one I'll describe here. CLI tools The Cassandra systems were EC2 virtual machine (Xen) instances. How long does it take to read the time?

Speed 52

Speed Java AWS Virtualization 52

O'Reilly

APRIL 23, 2024

Google not only crawled and indexed virtually every page on the web, it looked at how sites linked to each other, tracked which of the ten top links it showed were clicked on the most, which ones led people to come back and try another and which sent them away satisfied. The market was maturing. By the end of 2012, it was up to 82%.

Social Media 107

Social Media Google Internet Internet 107

ACM Sigarch

APRIL 26, 2018

EPU: Emotion Processing Unit is designed by Emoshape , as the MCU microchip design to enable a true emotional response in AI, robots and consumer electronic devices as a result of a virtually unlimited cognitive process. In Google I/O’17, Google announced its cloud TPU (also known as TPU2), which can handle both training and inference.

Hardware 99

Hardware Artificial Intelligence Architecture Google 99

KeyCDN

OCTOBER 10, 2018

Although a beta version was released in 2014, the first stable release of Kubernetes was just made available in September 2018. The result was Kubernetes, which allows developers to create and manage “clusters” of physical and virtual machines in order to coordinate cooperation via a shared network.

Virtualization 47

Virtualization Open Source Network Architecture 47

Brendan Gregg

SEPTEMBER 5, 2017

I've suggested adding a command to docker to make listing at least the top-level PIDs in containers easier. ## Virtual Machines The two main technologies on Linux are Xen and KVM (and there's Bhyve for BSD). The way the cloud is used helps with security: most instances at my employer have only been up for one or two days.

Virtualization 76

Virtualization AWS Engineering Hardware 76

Brendan Gregg

AUGUST 8, 2017

Load averages are an industry-critical metric – my company spends millions auto-scaling cloud instances based on them and other metrics – but on Linux there's some mystery around them. They can be also useful when a single value of demand is desired, such as for a cloud auto scaling rule. I've never seen an explanation.

Latency 111

Latency Metrics C++ Systems 111