Brendan Gregg

JANUARY 1, 2019

At the Linux Plumber's conference there were at least 24 talks on eBPF. It can be used for many things: network performance, firewalls, security, tracing, and device drivers. The term tracing refers to performance analysis and observability tools that can produce per-event info. eBPF is part of the Linux kernel. encodings/ascii.so

C++ 111

C++ Virtualization Programming Code 111

Brendan Gregg

AUGUST 18, 2019

bpftrace is a new open source tracer for Linux for analyzing production performance problems and troubleshooting software. Linux already has many performance tools, but these are often counter-based and have limited visibility. The probe is BEGIN , a special probe that runs at the beginning of the program (like awk).

Latency 68

Latency C++ Cache Programming 68

Adrian Cockcroft

JUNE 21, 2022

I became the Sun UK local specialist in performance and hardware, and as Sun transitioned from a desktop workstation company to sell high end multiprocessor servers I was helping customers find and fix scalability problems. Rich became co-author of the second edition of the Sun Performance Tuning book, to describe how it worked.

Tuning 52

Tuning Benchmarking Engineering C++ 52

Brendan Gregg

DECEMBER 31, 2018

At the Linux Plumber's conference there were at least 24 talks on eBPF. It can be used for many things: network performance, firewalls, security, tracing, and device drivers. The term tracing refers to performance analysis and observability tools that can produce per-event info. Beginner ## 1. eBPF is part of the Linux kernel.

C++ 52

C++ Virtualization Programming Code 52

Brendan Gregg

APRIL 30, 2018

USENIX’s LISA conference is the premier event for topics in production system engineering. Another exciting change for 2018: LISA is now a 3-day event, rather than 6 days; check out the Announcement of Changes to Future LISA Conferences for more details. Join us for 3 days in Nashville at LISA'18. Photo by Perry Kivolowitz.

DevOps 43

DevOps Network Best Practices Programming 43

Brendan Gregg

APRIL 29, 2018

USENIX’s LISA conference is the premier event for topics in production system engineering. Another exciting change for 2018: LISA is now a 3-day event, rather than 6 days; check out the Announcement of Changes to Future LISA Conferences for more details. Join us for 3 days in Nashville at LISA'18. Photo by Perry Kivolowitz.

DevOps 40

DevOps Network Best Practices Programming 40

Brendan Gregg

JULY 2, 2021

I chose these to find the most performance wins with the fewest tools. I see people think like a programmer instead and feel they must start by learning bcc and BPF programming in depth. Then, having discovered everything is C or Python, some rewrite it all in a different language. execsnoop New processes (via exec(2)) table.

Latency 145

Latency Cache Energy Systems 145

Brendan Gregg

JULY 2, 2021

I chose these to find the most performance wins with the fewest tools. I see people think like a programmer instead and feel they must start by learning bcc and BPF programming in depth. Then, having discovered everything is C or Python, some rewrite it all in a different language. execsnoop New processes (via exec(2)) table 2.

Open Source 40

Open Source Latency Cache Energy 40

Sutter's Mill

FEBRUARY 13, 2017

I don’t get to Europe very often apart from ISO C++ standards meetings, but this spring I’ve been able to accept invitations for two English-language European events in the last week of April. Tue-Thu Apr 25-27: High-Performance and Low-Latency C++ (Stockholm). Description.

Latency 51

Latency C++ Hardware Performance 51

O'Reilly

FEBRUARY 18, 2020

It’s the single most popular programming language on O’Reilly, and it accounts for 10% of all usage. In programming, Python is preeminent. Normalized search frequency of top programming languages on the O’Reilly online learning platform in 2019 (left) and the rate of change for each language (right). Figure 3 (above).

Software Architecture 134

Software Architecture DevOps Data Engineering Architecture 134

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? us on Ubuntu.

Speed 126

Speed Java AWS Virtualization 126

The Morning Paper

DECEMBER 8, 2019

At the start of November I was privileged to attend HPTS (the High Performance Transaction Systems) conference in Asilomar. On the last morning of the conference Daniel Bittman presented some of the work being done in the context of the Twizzler OS project to explore new programming models for NVM.

Hardware 56

Hardware Programming Media Storage 56

Sutter's Mill

SEPTEMBER 11, 2020

It’s hard to believe CppCon 2020 is nearly here… in fact, pre-conference tutorials are already in progress. I’ll be at the conference throughout the week in the hallways and session rooms. Here are some of the times I’ll be participating on the actual program: Sunday 1300 MDT: Organizer’s Panel.

C++ 65

C++ Games Latency Programming 65

Nick Desaulniers

APRIL 6, 2020

“War stories” in programming are entertaining tales of truly evil bugs that kept you up at night. ” 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. No output.

C++ 67

C++ Hardware Code Virtualization 67

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

Enprowess

NOVEMBER 2, 2021

Know the difference between Flutter vs React Native in terms of architecture, performance, community support, learning curve, use cases and many other aspects. Performance comparison. Flutter is a cross-platform, open-source framework that functions with a programming language called Dart, developed by Google in 2011.

Development 52

Development Social Media Mobile Code 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? us on Ubuntu.

Speed 40

Speed Java AWS Virtualization 40

All Things Distributed

MAY 21, 2018

Only parts of the processes are being performed by machines, or at least supported by them. Companies like C-SPAN show how: scores of people would have to scan video material for hours in order to create keywords, for example, according to a person's name. Machine learning can make human labor more effective.

Artificial Intelligence 76

Artificial Intelligence Technology Technology IoT 76

Smashing Magazine

AUGUST 9, 2021

You may have read some blog posts or heard conference talks on this topic and think you know the answers. Often they make it seem as if HTTP/3 is a revolution in performance, while it is really a more modest (yet still useful!) HTTP/3 performance features ( coming up soon! ). HTTP/3 From A To Z: Core Concepts (Part 1).

Transportation 145

Transportation Internet Internet Network 145

Smashing Magazine

NOVEMBER 30, 2021

Improving The Performance Of Wix Websites written by Dan Shappir. Adding A Dyslexia-Friendly Mode To A Website written by John C Barstow. Drew McLellan: He’s the author of the Vanilla JavaScript Pocket Guide series, creator of the Vanilla JavaScript Academy Training Program and host of the Vanilla JavaScript Podcast. Transcript.

Technology 94

Technology Technology Servers Code 94

John McCalpin

JANUARY 22, 2018

Dr. Damon McDougall gave a short presentation on this study at the IXPUG 2018 Fall Conference ( pdf ) — I originally wrote these notes to help organize my thoughts as we were preparing the IXPUG presentation, and later decided that the extra details contained here are interesting enough for me to post it.

Latency 40

Latency Hardware Code Testing 40