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. Our team looks after the BaseAMI, kernel tuning, OS performance tools and profilers, and self-service tools like Vector. We help where we can. We help where we can. schedtool –B PID.

Tuning 52

Tuning AWS Best Practices Network 52

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

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

SQL Server According to Bob

SEPTEMBER 27, 2017

Please check out a new blog post I created detailing how SQL Server 2017 is Fast, Built-In. Look for more details on my blog post and the SQL Server Blog about some of these concepts and new features for performance for SQL Server 2017. How we keep you fast and tuned with Adaptive Query Processing and Automatic Tuning.

Servers 40

Servers Tuning Database Cloud 40

Brendan Gregg

APRIL 14, 2022

PMC analysis (2017). 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. Apart from developing tools, much of my time has been spent helping teams with performance issues and evaluations.

Java 145

Java Cloud Cache AWS 145

Abstracta

OCTOBER 24, 2017

The post How to Optimize Website Speed for Black Friday 2017 appeared first on Abstracta Software Testing Services. Halloween is almost here and before you know it, it will be Black Friday and then, Cyber Monday. These consumer “holidays” bring about the race for shoppers to buy all of the coveted items on.

Speed 45

Speed Website Traffic Software 45

Brendan Gregg

APRIL 27, 2023

Observability tools are designed have the lowest overhead possible so that they are safe to run in production while analyzing an active performance issue. BPF for security monitoring was first explored by myself and a Netflix security engineer, Alex Maestretti, in a [2017 BSides talk] (some slides below).

Open Source 144

Open Source Monitoring Engineering Design 144

Dynatrace

MARCH 2, 2023

At Perform 2023, Dynatrace’s annual conference, Hightower once again joined DevOps activist Andreas Grabner onstage to discuss the role of AI in today’s cloud environments. Because of this, Hightower believes that eventually SRE, security, and performance engineering roles will converge into what’s called a data scientist.

Best Practices 212

Best Practices Internet Internet Cloud 212

SQL Performance

AUGUST 14, 2019

GetNums ( 1 , @rows_per_partition ) AS RPP ; Our pitfall has both a logical side to it with a potential logical bug as well as a performance side with a performance penalty. The performance penalty is relevant only when the window function is optimized with row-mode processing operators. 2017-07-04 10248 440.00

Best Practices 108

Best Practices Servers Database Azure 108

Dynatrace

FEBRUARY 17, 2021

These tests are performed to verify the effectiveness of our security controls. Dating back to March 2016, the first-ever Dynatrace external penetration test was performed. This internal testing environment covers a multitude of tasks that previously had to be performed manually. The entire product is in scope.

Testing 264

Testing Mobile Code Monitoring 264

Smashing Magazine

JUNE 3, 2022

Measuring The Performance Of Typefaces For Users (Part 1). Measuring The Performance Of Typefaces For Users (Part 1). How well does a typeface work and perform against another similar typeface? Reasons To Measure The Performance Of Typefaces? Measuring Typefaces And The Resulting Performance Data. Thomas Bohm.

Performance 110

Performance Design Best Practices Testing 110

Brendan Gregg

JULY 15, 2019

BPF (eBPF) tracing is a superpower that can analyze everything, and I'll show you how in my upcoming book BPF Performance Tools: Linux System and Application Observability , coming soon from Addison Wesley. Some other future BPF books may be good, and I'll recommend them as appropriate. I've followed this proven approach in my book.

Systems 111

Systems Performance Education Technology 111

CSS Wizardry

NOVEMBER 23, 2018

This short post feels like a summary of several other things I’ve been trying to teach for the past several years, so I would encourage you to also read: The Fallacies of Distributed Computing (Applied to Front-End Performance) (November 2017). Airplanes and Ashtrays (October 2017). 5Mb up, 1Mb down, 28ms RTT. ↩

Strategy 125

Strategy Testing Tools Design Testing 125

Tim Kadlec

JANUARY 4, 2018

It’s not much of a surprise, then, that I read more books in 2017 than I have since I started keeping track back in 2009. Williams cites study after study by researchers around the globe to demonstrate how nature—the scents, the sights, the sounds—all impact how we function and perform. Thankfully it’s not.

BioTech 45

BioTech Social Media Entertainment Media 45

Dynatrace

FEBRUARY 6, 2020

We first brought our DevOps story to life at Perform 2017 when our CTO & Founder Bernd Greifeneder, DevOps Lead Anita Engleder and I went on stage. DevOps Transformation at Dynatrace enacted live on stage at Perform 2017!

Cloud 184

Cloud DevOps Engineering Speed 184

SQL Performance

SEPTEMBER 12, 2019

As an example with our task, suppose that you don't realize that the grouping element is determined implicitly, and you come up with the following query: SELECT shipperid , [ 2017 ] , [ 2018 ] , [ 2019 ] FROM Sales. So you're expecting to see only three rows in the result. 830 rows affected).

Best Practices 103

Best Practices C++ Code Design 103

Rigor

SEPTEMBER 11, 2019

Reading time 16 min Whether you’re a web performance expert, an evangelist for the culture of performance, a web engineer incorporating performance into your process, or someone new to the web performance entirely, you probably identify as curious, excited about new ideas, and always learning. Rick Byers.

Performance 89

Performance Education Google Website 89

Brendan Gregg

OCTOBER 28, 2017

For my first trip to Paris I gave the closing keynote at [EuroBSDcon 2017] on performance methodologies, using FreeBSD 11.1 EuroBSDcon 2017]: [link] [thread state analysis]: [link] [tstates.d]: [link] as an analysis target. It was a few days of work, which is really not bad.

Systems 52

Systems Performance C++ Operating System 52

The Netflix TechBlog

OCTOBER 28, 2021

These cultural points resonated with me most: freedom and responsibility, high bar for performance, and no hiring of brilliant jerks. In 2017, I attended the Women in Big Data conference at Netflix and met with several amazing women in data engineering, including our VP.

Data Engineering 173

Data Engineering Engineering Big Data Software Engineering 173

DZone

SEPTEMBER 18, 2019

That means software testing spending is up 13% from 2017. There are many types of software testing that you can use to improve your products. How Much of a Company's Budget Is Spent on Quality Assurance and Testing? A whopping 39% globally this year.

Software 141

Software Software Benchmarking Testing 141

Rigor

MAY 15, 2018

At Rigor we help our customers deliver performance wins, quantify those successes, and correlate the impact to the business metrics they care about the most. For example, we help customers deliver performance improvements that lead to not just faster load times, but also improved conversions and increased revenue. million).

Performance 40

Performance Ecommerce Analytics Metrics 40

Dynatrace

JUNE 15, 2023

Recent examples include the Heartbleed vulnerability in 2014, the attacks on Apache Struts in 2017, and Log4Shell in 2021. While also ensuring secure, high-performing applications, organizations must evolve from traditional, manual security practices to a more intelligent, automated approach to cloud application security.

Cloud 173

Cloud Open Source Architecture Monitoring 173

All Things Distributed

MAY 19, 2017

In many, high-throughput, OLTP style applications the database plays a crucial role to achieve scale, reliability, high-performance and cost efficiency. For a long time, these requirements were almost exclusively served by commercial, proprietary databases.

Database 120

Database Design Cloud Storage 120

The Netflix TechBlog

DECEMBER 14, 2020

The mystery begins Towards the end of 2017, I was on a conference call to discuss an issue with the Netflix application on a new set top box. In Ninja, this job is performed by an Android Thread. I knew epoll() performance isn’t guaranteed, so I suspected something was affecting epoll() in a systematic way. aka “Lollipop”.

Engineering 352

Engineering Code Hardware Open Source 352

SQL Performance

DECEMBER 11, 2019

WHERE NOT ( shippeddate = '20190102' ) ; This query returns the following output: orderid shippeddate -- -- 10249 2017-07-10 10252 2017-07-11 10250 2017-07-12. WHERE shippeddate IS NOT NULL ; This query generates the following output: orderid shippeddate -- -- 10249 2017-07-10 10252 2017-07-11 10250 2017-07-12.

Best Practices 117

Best Practices C++ Database Code 117

Tim Kadlec

FEBRUARY 13, 2020

The pattern itself is no longer recommended, but it’s a helpful illustration of why it’s important to be careful about how you use preload as well as a useful, real-world demonstration of how the order of your document can have a significant impact on performance (something Harry Roberts has done an outstanding job of detailing ).

Network 145

Network C++ Performance Processing 145

CSS - Tricks

MAY 17, 2019

Instilling a performance culture at The Telegraph. We've been working hard at The Telegraph to improve third-party performance. Gareth Clubb : At The Telegraph (a major UK newspaper), we set up a web performance working group to tackle our “organizational” performance challenges and instill a performance culture.

Performance 42

Performance Internet Internet Metrics 42

Dynatrace

MAY 17, 2019

SUSE released its own version of Kubernetes, SUSE CaaS in 2017 , providing a turnkey enterprise class container management solution for enterprise customers, enabling them to reduce application delivery cycle times and improve business agility. The screenshot below shows cluster-level metrics for SUSE CaaS 3.

Availability 133

Availability Monitoring Metrics Technology 133

Jos

JUNE 17, 2017

Image taken from the Chrome 60 blog post , which first appeared in “Web Performance: Leveraging the Metrics that Most Affect User Experience” at Google I/O 2017. Conclusions This is a bit in early stages but I’m looking forward to see how the API evolves and we can use it to track Web Performance even better. round ( entry.

Google 130

Google Analytics Metrics Speed 130

High Scalability

DECEMBER 7, 2018

This is how PCM is able to perform calculations. ivanveram : World R&D leading companies 2017 in US$. The conductance of the material changes along with its physical state and can be modified using electrical pulses. 1: Amazon; No.2: 2: Alphabet (Google); No.3: 3: Samsung. :) That´s the way it is!!!

Internet 163

Internet Internet Scalability Blockchain 163

All Things Distributed

SEPTEMBER 29, 2016

The team with the highest-performing socialbot will win a $500,000 prize. Teams of university students can submit applications now and the contest will conclude at AWS re:Invent in November 2017, where the winners will be announced. Registration opened today and teams have until October 28, 2016 to submit their applications.

Artificial Intelligence 139

Artificial Intelligence Healthcare AWS Government 139

SQL Performance

AUGUST 11, 2021

GROUP BY YEAR ( orderdate ) ORDER BY orderyear ; This code generates the following output: orderyear numorders totalvalue -- -- -- 2017 152 208083.99 An event that took place on July 14 th , 2018 belongs to fiscal year 2017. 2017 343 495118.14 OrderValues. 2018 408 617085.30 2019 270 440623.93. 2018 370 563759.24

Azure 139

Azure Code Database Servers 139

SQL Performance

FEBRUARY 12, 2020

10249 2017-07-10 10252 2017-07-11 10250 2017-07-12. ORDER BY CASE WHEN shippeddate IS NOT NULL THEN 0 ELSE 1 END , shippeddate , orderid ; This query generates the desired output with NULLs showing up last: orderid shippeddate -- -- 10249 2017-07-10 10252 2017-07-11 10250 2017-07-12.

C++ 120

C++ Code Servers Database 120

Dynatrace

MAY 17, 2019

SUSE released its own version of Kubernetes, SUSE CaaS in 2017 , providing a turnkey enterprise class container management solution for enterprise customers, enabling them to reduce application delivery cycle times and improve business agility. The screenshot below shows cluster-level metrics for SUSE CaaS 3.

Availability 113

Availability Monitoring Metrics Technology 113

SQL Performance

OCTOBER 9, 2019

Many people are not aware that SQL Server 2017 introduced a new function called TRANSLATE that simplifies such replacements a great deal. SQL Server 2017 introduced support for the function TRIM. As an exercise, try solving this task with a pre-SQL Server 2017 compatible solution where you cannot use TRIM and TRANSLATE.

C++ 111

C++ Database Servers Code 111

ACM Sigarch

APRIL 26, 2018

They unveiled their first two embedded AI chips fabricated with TSMC 40nm process in December 2017: “Journey 1.0 TFLOPS deep learning performance, and is equipped with 32GB of high-bandwidth memory (HBM) capacity. Their prototype introduces processing-in-memory and performs hybrid digital/analog calculation inside flash arrays.

Hardware 99

Hardware Artificial Intelligence Architecture Google 99

Dynatrace

MAY 6, 2021

Improved performance of Licensing and Environments overview page for clusters running dozens of environments. Linux: Amazon Linux AMI 2017.x. If you opt-out from automatic updates download, you’ll start to receive e-mail notifications with update package URLs ready to download by you. See Update Dynatrace Managed topic.

Operating System 227

Operating System AWS Metrics Storage 227