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

The Netflix TechBlog

FEBRUARY 20, 2019

These updates also bring other user experience improvements and a fresher technology stack. For that to work, there needed to be a PCP interface for BPF. Internal technology refresh The earlier dashboard core components were running on a tech stack that was?—?for to the broader community. for JavaScript?—?a

Performance 211

Performance Latency Open Source Metrics 211

Brendan Gregg

APRIL 14, 2022

offer letter logo (2014) flame graphs (2014) eBPF tools (2014-2019) PMC analysis (2017) my pandemic-abandoned desk (2020); office wall I joined Netflix in 2014, a company at the forefront of cloud computing with an attractive work culture. It was the most challenging job among those I interviewed for. Thank you.

Java 52

Java Cache Cloud AWS 52

Brendan Gregg

OCTOBER 15, 2019

At a Linux conference in Düsseldorf, 2014, I saw a talk by kernel maintainer [Steven Rostedt] that answered both questions. I'd also recommend watching: - BPF at Facebook by Alexei Starovoitov ( youtube ) - The ubiquity but also the necessity of eBPF as a technology to keep the kernel relevant by David S.

C++ 77

C++ Engineering Technology Technology 77

Brendan Gregg

JULY 2, 2021

There's an arms race to add [eBPF] (BPF) to commercial observability products, and in this post I'll describe how to quickly do that. People like to show me their BPF observability products after they have prototyped or built them, but I often wish I had given them advice before they started. You might not even like BPF.

Open Source 40

Open Source Latency Cache Energy 40

Brendan Gregg

FEBRUARY 28, 2023

It's an important vendor-neutral space to share the latest in technology. USENIX has been a great help to my career and my employers, and I hope it is just as helpful for you. And now, helping bring USENIX conferences to Australia by giving the first keynote: I could not have scripted or expected it. It was a great privilege.

Performance 52

Performance Latency Cache Virtualization 52

Brendan Gregg

OCTOBER 14, 2019

At a Linux conference in Düsseldorf, 2014, I saw a talk by kernel maintainer [Steven Rostedt] that answered both questions. I'd also recommend watching: - BPF at Facebook by Alexei Starovoitov ( youtube ) - The ubiquity but also the necessity of eBPF as a technology to keep the kernel relevant by David S.

C++ 52

C++ Engineering Technology Technology 52

Brendan Gregg

MAY 16, 2017

When I joined Netflix in April 2014, we had over 40 million subscribers in 41 countries. During this time we did do plenty of hard work, rolling out new technologies and major microservice versions, and fixed many problems big and small. We are now in 190 countries and just crossed [100 million subscribers]!

Java 75

Java Entertainment Engineering Scalability 75

Brendan Gregg

SEPTEMBER 5, 2017

Here's some output from my zfsdist tool, in bcc/BPF, which measures ZFS latency as a histogram on Linux: # zfsdist. Linux has been adding tracing technologies over the years: kprobes (kernel dynamic tracing), uprobes (user-level dynamic tracing), tracepoints (static tracing), and perf_events (profiling and hardware counters).

Virtualization 76

Virtualization AWS Engineering Hardware 76