Adrian Cockcroft

JANUARY 17, 2022

The need for systems to be resilient is still increasing, and chaos engineering tools and techniques are developing as a key way to validate that resilience is working as designed. If you are building resilient systems with failover, the control plane that manages failover is often the hardest part of the system to get right.

Serverless 98

Serverless Hardware AWS Architecture 98

Dynatrace

JULY 13, 2020

Containers and Microservices: R evolution in the architecture of distributed systems . ? refers to cloud-based, containerized, distributed systems, made up of cooperating microservices, dynamically managed by automated infrastructure as code. . ? How do you make this system resilient and fault-tolerant? Cloud-native?

Google 130

Google Ecommerce DevOps Cloud 130

Brendan Gregg

SEPTEMBER 25, 2021

CLI tools The Cassandra systems were EC2 virtual machine (Xen) instances. Note that Ubuntu also has a frame to show entry into vDSO (virtual dynamic shared object). Microbenchmark os::javaTimeMillis() on both systems. Running this on the two systems saw similar results. Try changing the kernel clocksource.

Speed 126

Speed Java AWS Virtualization 126

Brendan Gregg

FEBRUARY 28, 2023

This talk originated from my updates to Systems Performance 2nd Edition , and this was the first time I've given this talk in person! CXL in a way allows a custom memory controller to be added to a system, to increase memory capacity, bandwidth, and overall performance. Or even on a plane. It was a great privilege.

Performance 52

Performance Latency Cache Virtualization 52

O'Reilly

SEPTEMBER 15, 2021

While it’s sadly premature to say that the survey took place at the end of the COVID-19 pandemic (though we can all hope), it took place at a time when restrictions were loosening: we were starting to go out in public, have parties, and in some cases even attend in-person conferences. Salaries were lower regardless of education or job title.

Azure 145

Azure Social Media Programming AWS 145

All Things Distributed

DECEMBER 18, 2012

Werner Vogels weblog on building scalable and robust distributed systems. After the AWS re: Invent conference I spent two weeks in Europe for the last customer visits of the year. Although there are still a few very exciting AWS news updates to happen this year. Bar-Yam, Journal of Systems Science and Complexity.

Operating System 144

Operating System Cache AWS Scalability 144

Brendan Gregg

JULY 4, 2021

AWS Graviton2); for memory with the arrival of DDR5 and High Bandwidth Memory (HBM) on-processor; for storage including new uses for 3D Xpoint as a 3D NAND accelerator; for networking with the rise of QUIC and eXpress Data Path (XDP); and so on. I also wrote about these topics in detail for my recent [Systems Performance 2nd Edition] book.

Performance 52

Performance Latency Hardware Storage 52

Brendan Gregg

SEPTEMBER 25, 2021

CLI tools The Cassandra systems were EC2 virtual machine (Xen) instances. Note that Ubuntu also has a frame to show entry into vDSO (virtual dynamic shared object). Microbenchmark os::javaTimeMillis() on both systems. Running this on the two systems saw similar results. Try changing the kernel clocksource.

Speed 52

Speed Java AWS Virtualization 52

Brendan Gregg

SEPTEMBER 25, 2021

CLI tools The Cassandra systems were EC2 virtual machine (Xen) instances. Note that Ubuntu also has a frame to show entry into vDSO (virtual dynamic shared object). Microbenchmark os::javaTimeMillis() on both systems. Running this on the two systems saw similar results. Try changing the kernel clocksource.

Speed 40

Speed Java AWS Virtualization 40

O'Reilly

FEBRUARY 18, 2020

there’s a Python library for virtually anything a developer or data scientist might need to do. Infrastructure and ops usage was the fastest growing sub-topic under the generic systems administration topic. DevOps aims to produce programmers who can work competently in each of the layers in a system “ stack.”

Software Architecture 137

Software Architecture DevOps Data Engineering Architecture 137

VoltDB

JUNE 1, 2017

Earlier this month I spent a week at the OpenStack conference. But once you realize that there are, in fact, several OpenStack conferences happening at the same time and place, it makes more sense. Telcos and Fortune 500 corporations used to spend years defining custom systems, down to the last cable.

Hardware 56

Hardware Latency Virtualization Cloud 56

The Symphonia

DECEMBER 7, 2018

So another AWS re:Invent has come and gone and . We spent most of our time chatting to various folk about what they are doing with AWS now, and where they hope to proceed in 2019. AWS, for many organizations, is becoming the core, trusted, platform of how they work. lightweight virtualization for Serverless Computing”.

Lambda 40

Lambda Serverless AWS Blockchain 40

Adrian Cockcroft

JUNE 21, 2022

Photo by Adrian I spent six years at Cambridge Consultants, building some interesting systems, managing our Sun workstations and learning a lot, but by then Sun had opened a sales office across the street, and I wanted to find out what they were going to release next, before everyone else. He hasn’t changed.

Tuning 52

Tuning Benchmarking Engineering C++ 52

O'Reilly

DECEMBER 2, 2019

I don’t need more bandwidth for video conferences or movies, but I would like to be able to download operating system updates and other large items in seconds rather than minutes. But that’s also a problem that 5G vendors could solve; virtual LANs ( VLANs ) are hardly a new concept. Upcoming events.

Wireless 53

Wireless Serverless IoT Artificial Intelligence 53

Testsigma

JULY 22, 2021

Connecting with people through social channels, Slack groups, forums, meetups, conferences, content and much more. I’m presented with systems, software, people, problems and much more and I’ve to learn about them. It’s my job now as BossBoss of the Ministry of Testing. But for me, it’s about connections. As mentioned, I love to learn.

Software 97

Software Software Testing Energy 97

VoltDB

JUNE 1, 2017

Earlier this month I spent a week at the OpenStack conference. But once you realize that there are, in fact, several OpenStack conferences happening at the same time and place, it makes more sense. Telcos and Fortune 500 corporations used to spend years defining custom systems, down to the last cable.

Hardware 40

Hardware Latency Virtualization Cloud 40

Brendan Gregg

SEPTEMBER 5, 2017

What follows are topics that may be of interest to anyone looking to migrate their systems and skillset: scan these to find topics that interest you. ## ZFS ZFS is available for Linux via the [zfsonlinux] and [OpenZFS] projects, and more recently was included in Canonical's Ubuntu Linux distribution: Ubuntu Xenial 16.04 LTS (April 2016).

Virtualization 76

Virtualization AWS Engineering Hardware 76

Nick Desaulniers

APRIL 6, 2020

has given me much fulfilment and a long list of truly awful bugs to recount. ” Distracted in a conference grand ballroom, above what might be the largest mall in the world or at least Bangkok, a blank QEMU session has me seriously questioning my life choices. Recent work. May I present to you episode I; “ Off by Two.”

C++ 67

C++ Hardware Code Virtualization 67

All Things Distributed

OCTOBER 2, 2017

With these requirements in mind, and a willingness to question the status quo, a small group of distributed systems experts came together and designed a horizontally scalable distributed database that would scale out for both reads and writes to meet the long-term needs of our business. This was the genesis of the Amazon Dynamo database.

Internet 128

Internet Internet AWS Performance 128

All Things Distributed

MAY 21, 2018

Which human activities can be taken over by machines or ML-based systems? In the first step we might reach this goal by combining the fastest mobility services through a digital platform; in the next, it might be a task fulfilled by Virtual Reality. How many of the jobs that we know today will even exist in the future?

Artificial Intelligence 76

Artificial Intelligence Technology Technology IoT 76