Brendan Gregg

APRIL 14, 2022

I joined Netflix in 2014, a company at the forefront of cloud computing with an attractive [work culture]. On the Netflix Java/Linux/EC2 stack there were no working mixed-mode flame graphs, no production safe dynamic tracer, and no PMCs: All tools I used extensively for advanced performance analysis. How would I do my job?

Java 145

Java Cloud Cache AWS 145

All Things Distributed

DECEMBER 13, 2016

In November 2015, Amazon Web Services announced that it would launch a new AWS infrastructure region in the United Kingdom. The British Government is also helping to drive innovation and has embraced a cloud-first policy for technology adoption. Take Peterborough City Council as an example.

AWS 166

AWS Cloud Artificial Intelligence IoT 166

Scalegrid

NOVEMBER 25, 2019

Released just four years ago in 2015, Scylla has averaged over 220% year-over-year growth in popularity according to DB-Engines. ScyllaDB Cloud vs. ScyllaDB On-Premises. Most Popular Cloud Providers for ScyllaDB. In fact, according to ScyllaDB’s performance benchmark report, their 99.9 Cloud vs. On-Premise Click To Tweet.

Big Data 187

Big Data Database Open Source Azure 187

Dynatrace

APRIL 5, 2021

The growth of Azure cloud computing. Azure is a large and growing cloud computing ecosystem that empowers its users to access databases, launch virtual servers, create websites or mobile applications, run a Kubernetes cluster, and train machine learning models, to name a few examples. Making the best use of Azure Functions.

Azure 138

Azure Serverless IoT Lambda 138

Dynatrace

DECEMBER 22, 2021

With observability, teams can understand what part of a system is performing poorly and how to correct the problem. Traces provide performance data about tasks that are performed by invoking a series of services. Observability platforms are becoming essential as the complexity of cloud-native architectures increases.

Artificial Intelligence 183

Artificial Intelligence Metrics Architecture DevOps 183

Dynatrace

AUGUST 17, 2023

In 2015, the Spring folks already regarded Dynatrace as the gold standard for performance monitoring. Some years ago, I worked closely with the Spring Framework team as a product manager at Pivotal Software.

Metrics 203

Metrics Analytics Speed Java 203

Brendan Gregg

FEBRUARY 28, 2023

At USENIX SREcon22 APAC I gave the opening keynote on the future of computer performance, rounding up the latest developments and making predictions of where I see things heading. This talk originated from my updates to Systems Performance 2nd Edition , and this was the first time I've given this talk in person!

Performance 52

Performance Latency Cache Virtualization 52

All Things Distributed

MARCH 11, 2015

Cloud computing is enabling amazing new innovations both in consumer and enterprise products, as it became the new normal for organizations of all sizes. So many exciting new areas are being empowered by cloud that it is fascinating to watch. Cloud analytics are everywhere. Cloud enables self-service analytics.

Analytics 135

Analytics Cloud Healthcare Retail 135

Dynatrace

APRIL 30, 2021

At Perform 2021, Dynatrace product manager Michael Winkler sat down with Atlassian’s DevOps evangelist, Ian Buchanan, to talk about how you can achieve speed, stability, and scale in your DevOps toolchain as you optimize your practices on the path to self-service. You can find the full list of Perform sessions available on demand.

DevOps 219

DevOps Speed Efficiency Engineering 219

Dynatrace

APRIL 2, 2020

Performance has always mattered. With sniffers, network performance engineers were ultimately able to relate wire data performance to what business owners expected from the networks they financed. The network performance engineer who managed the sniffer was the guru. The DC RUM wave. Technology developments come in waves.

Network 166

Network Traffic Monitoring Java 166

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., This was a chance to talk about other things I've been working on, such as the present and future of hardware performance.

Performance 52

Performance Latency Hardware Storage 52

High Scalability

MARCH 22, 2019

Know anyone who needs cloud? I wrote Explain the Cloud Like I'm 10 just for them. skamille : I worry that the cloud is just moving us back to a world of proprietary software. BrentToderian : What city went from 14% of all trips by bike in 2001, to 22% by 2012, then leaped to 30% in 3 years by 2015, & 35% by 2018?

Internet 134

Internet Internet Scalability Wireless 134

Alex Russell

MARCH 6, 2021

Back in 2016, I gave a talk outlining the causes and effects of the terrible performance of web apps built using popular tools on the fastest-growing device segment: low-end to mid-range Android phones. Poor performance has a compound effect on user expectations at an ecosystem level. Live by the link, die by the link.

Performance 124

Performance Network Cache Metrics 124

Dynatrace

APRIL 17, 2019

If you hadn’t already heard the news, the entire Dynatrace team is immensely proud to once again been positioned as a Leader in the Gartner 2019 Magic Quadrant for Application Performance Monitoring (APM). In a sea of virtualized layers of abstraction, shared services, and dependencies, the cloud has become increasingly complex.

Innovation 137

Innovation Virtualization Cloud Azure 137

Brendan Gregg

MAY 28, 2021

I've moved from the San Francisco Bay Area to Sydney, Australia, where I will continue the best job so far of my career: Performance engineering at Netflix. While my move is among the first from the Linux cloud teams, Netflix has had staff in Australia for years (for content, marketing, and the FreeBSD OCA). various anecdotes: [link].

Google 144

Google Engineering Open Source AWS 144

Smashing Magazine

JANUARY 11, 2021

Front-End Performance Checklist 2021. Front-End Performance Checklist 2021. This guide has been kindly supported by our friends at LogRocket , a service that combines frontend performance monitoring , session replay, and product analytics to help you build better customer experiences. Web performance is a tricky beast, isn’t it?

Performance 145

Performance Cache Media Metrics 145

Adrian Cockcroft

AUGUST 1, 2022

photo by Adrian I gave a talk at Monitorama in Portland Oregon in June, which set out the idea that carbon is just another metric to monitor, and that in a few years most of the monitoring and performance tuning tools are going to be reporting and optimizing for carbon alongside latency, throughput, availability and cost.

AWS 52

AWS Virtualization DevOps Latency 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. A quick check of basic performance statistics showed over 30% higher CPU consumption. How would you _time_ time?

Speed 126

Speed Java AWS Virtualization 126

The Netflix TechBlog

DECEMBER 23, 2020

Titus is a multi-tenant system, allowing multiple teams and users to run workloads on the system, and ensuring they can all co-exist while still providing guarantees about security and performance. Unfortunately, these default namespace boundaries are not sufficient to prevent container escape, as seen in CVEs like CVE-2015–2925.

Media 286

Media Metrics Systems Processing 286

Brendan Gregg

MARCH 16, 2024

I'm sure this delivered large performance improvements and I wouldn't try arguing against it. While that Java change led to discovering countless performance wins in application code, libc was still breaking some portion of the samples (as pictured in the example at the top of this post) and preventing off-CPU flame graphs.

Java 145

Java Cache Google Hardware 145

Smashing Magazine

JANUARY 6, 2020

Front-End Performance Checklist 2020 [PDF, Apple Pages, MS Word]. Front-End Performance Checklist 2020 [PDF, Apple Pages, MS Word]. Web performance is a tricky beast, isn’t it? How do we actually know where we stand in terms of performance, and what our performance bottlenecks exactly are? Vitaly Friedman.

Performance 145

Performance Cache Network Metrics 145

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. A video of the talk is on youtube : The slides are on slideshare : I love this talk as I get to share more about what the Performance and Operating Systems team at Netflix does, rather than just my work.

Tuning 61

Tuning AWS Best Practices Network 61

Brendan Gregg

MAY 16, 2017

I previously wrote about Netflix in [2015] and [2016], and if you are interested in what it's like to work here, I already covered much in those posts. We're on the EC2 cloud, which has great scalability, and our own cloud architecture of microservices is also designed for scalability. Time flies! Little to no bureaucracy.

Java 75

Java Entertainment Engineering Scalability 75

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. A video of the talk is on youtube : The slides are on slideshare : I love this talk as I get to share more about what the Performance and Operating Systems team at Netflix does, rather than just my work.

Tuning 52

Tuning AWS Best Practices Network 52

Testsigma

JUNE 5, 2021

In 2015, 35% of the internet traffic came from mobile devices, 6 years later, the number is 54.8%. How to perform automated mobile browser testing? The execution of these automated mobile browser tests can be performed in multiple ways – via emulators, simulators or buying an actual device to test.

Mobile 52

Mobile Testing Website Testing Tools 52

Brendan Gregg

JULY 2, 2021

I chose these to find the most performance wins with the fewest tools. This is currently part of our FlameCommander UI, which also runs flame graphs across the cloud. For a more recent example, I wrote cachestat(8) while on vacation in 2014 for use on the Netflix cloud, which was a mix of Linux 3.2 opensnoop Files opened table.

Latency 145

Latency Cache Energy Systems 145

Brendan Gregg

NOVEMBER 29, 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.

Virtualization 111

Virtualization AWS Hardware Storage 111

Percona

JANUARY 17, 2019

On multi-core machines – which is the majority of the hardware nowadays – and in the cloud, we have multiple cores available for use. In this article, we will look at how this can improve the reporting/analytical query performance in MySQL. Result: ~10x performance gain, no index used. With faster disks (i.e. MySQL on ec2.

Cache 46

Cache C++ AWS Airlines 46

Smashing Magazine

JANUARY 7, 2019

Front-End Performance Checklist 2019 [PDF, Apple Pages, MS Word]. Front-End Performance Checklist 2019 [PDF, Apple Pages, MS Word]. Web performance is a tricky beast, isn’t it? How do we actually know where we stand in terms of performance, and what our performance bottlenecks exactly are? Vitaly Friedman.

Performance 104

Performance Cache Network Metrics 104

Strategic Tech

FEBRUARY 27, 2021

Every step in a developer’s journey is an opportunity to improve their experience and improve the performance of the organization. Recommended Reading: From zero to production in sixty minutes: Building a cloud platform for product development. Pleasant Onboarding Joining a new company is a time of optimism and positivity.

Development 98

Development Strategy Infrastructure Metrics 98

Testsigma

JANUARY 7, 2022

2015 saw the trend of scriptless testing and IoT focussed methodologies. Testsigma, a completely cloud-based test automation tool uses AI technology in software testing to save time, costs and smoothen out the learning curve of the testers. If you have something in mind, feel free to comment down below. billion US dollars by 2027.

Artificial Intelligence 89

Artificial Intelligence IoT Software Software 89

Testsigma

FEBRUARY 19, 2021

Testsigma is a cloud-based, AI-driven test automation platform that supports Agile and Continuous Delivery teams – for browser as well as mobile testing. XCUITest is a UI testing framework for iOS apps that was launched by Apple in 2015.

Testing Tools 57

Testing Tools Mobile Testing Java 57

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. A quick check of basic performance statistics showed over 30% higher CPU consumption. How would you _time_ time?

Speed 40

Speed Java AWS Virtualization 40

ACM Sigarch

APRIL 26, 2018

TFLOPS deep learning performance, and is equipped with 32GB of high-bandwidth memory (HBM) capacity. The new DGX-2, which achieves 2 petaFLOPS in the system, combines 16 fully interconnected GPUS with 10x the deep learning performance. TPU1 focused on the inference tasks, and has been deployed in the datacenter since 2015.

Hardware 99

Hardware Artificial Intelligence Architecture Google 99

Brendan Gregg

MAY 28, 2021

I've moved from the San Francisco Bay Area to Sydney, Australia, where I will continue the best job so far of my career: Performance engineering at Netflix. While my move is among the first from the Linux cloud teams, Netflix has had staff in Australia for years (for content, marketing, and the FreeBSD OCA).

Google 40

Google Engineering Open Source AWS 40

The Netflix TechBlog

NOVEMBER 22, 2019

December 2 1pm-2pm CMP 326-R Capacity Management Made Easy with Amazon EC2 Auto Scaling Vadim Filanovsky , Senior Performance Engineer & Anoop Kapoor, AWS Abstract :Amazon EC2 Auto Scaling offers a hands-free capacity management experience to help customers maintain a healthy fleet, improve application availability, and reduce costs.

AWS 37

AWS Entertainment Open Source Benchmarking 37

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. A quick check of basic performance statistics showed over 30% higher CPU consumption. How would you time time?

Speed 52

Speed Java AWS Virtualization 52