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

Strategic Tech

FEBRUARY 20, 2021

From day-to-day conversations to tech conferences, it’s not a topic that gets much air time. And for many internet-era companies, developing quality products at speed is necessary to gain market share and avoid being disrupted. I’m surprised that we don’t talk about incentives more often.

Technology 59

Technology Technology DevOps Energy 59

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. But once you realize that there are, in fact, several OpenStack conferences happening at the same time and place, it makes more sense.

Hardware 56

Hardware Latency Virtualization Cloud 56

Tim Kadlec

OCTOBER 17, 2010

Performance optimization is the Rodney Dangerfield of web development–it “don’t get no respect” In spite of its great importance in the overall user experience, it is all too often pushed aside and treated as an afterthought. Performance optimization isn’t that necessary. Performance matters.

Performance 40

Performance Energy Google Internet 40

Tim Kadlec

AUGUST 14, 2018

The area he was in was served by satellite internet access, and experienced significant latency (a floor of 506 milliseconds) and packet loss (between 50-80% was typical). A local caching server, meant to speed up commonly-requested sites and reduce bandwidth usage, is a “man in the middle”. These tools, therefore, are essential.

Cache 64

Cache Mobile Servers Latency 64

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

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. But once you realize that there are, in fact, several OpenStack conferences happening at the same time and place, it makes more sense.

Hardware 40

Hardware Latency Virtualization Cloud 40

CSS Wizardry

JULY 23, 2023

Google do strongly encourage you to focus on site speed for better performance in Search, but, if you don’t pass all relevant Core Web Vitals (and the applicable factors from the Page Experience report) they will not push you down the rankings. While Core Web Vitals can help with SEO, there’s so much more to site-speed than that.

Engineering 246

Engineering Google Speed Mobile 246

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

All Things Distributed

OCTOBER 2, 2017

We were pushing the limits of what was a leading commercial database at the time and were unable to sustain the availability, scalability and performance needs that our growing Amazon business demanded. Performant – The service would need to be able to maintain consistent performance in the face of diverse customer workloads.

Internet 128

Internet Internet AWS Performance 128

Smashing Magazine

AUGUST 22, 2021

HTTP/3: Performance Improvements (Part 2). HTTP/3: Performance Improvements (Part 2). In this second part, we will zoom in on the performance improvements that QUIC and HTTP/3 bring to the table for web-page loading. HTTP/3 performance features ( current article ). A Primer on Speed. Robin Marx.

Performance 106

Performance Network Latency Servers 106

The Morning Paper

JANUARY 23, 2020

Trade-offs under pressure: heuristics and observations of teams resolving internet service outages , Allspaw, Masters thesis, Lund University 2015. 1:00pm Eastern Standard Time the Personalisation / Homepage Team for Etsy are in a conference room kicking off a lunch-and-learn session on the personalised feed feature on the Etsy.com homepage.

Internet 53

Internet Internet Cache Engineering 53

Sutter's Mill

FEBRUARY 13, 2017

Tue-Thu Apr 25-27: High-Performance and Low-Latency C++ (Stockholm). On April 25-27, I’ll be in Stockholm (Kista) giving a three-day seminar on “High-Performance and Low-Latency C++.” If you’re interested in attending, please check out the links, and I look forward to meeting and re-meeting many of you there.

Latency 51

Latency C++ Hardware Performance 51

Brendan Gregg

SEPTEMBER 5, 2017

I gave a talk about container performance recently at DockerCon, and included a quick summary of how they work: YouTube , SlideShare : If you search of slideshare and youtube, you'll find many other good talks on containers as well. People rarely create them manually.

Virtualization 76

Virtualization AWS Engineering Hardware 76

The Symphonia

DECEMBER 6, 2017

One of the most significant announcements of the entire conference to me was that of per-function concurrency control. Correspondingly, 3GB functions should see a 2x CPU performance improvement over 1.5GB Lambdas, but this is through doubling the number of cores the function has access to, rather than double the virtualized time-slices.

Serverless 40

Serverless Lambda AWS Traffic 40