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., In case you are interested, at the same conference I also gave a talk on [BPF Internals].

Performance 52

Performance Latency Hardware Storage 52

Brendan Gregg

JULY 14, 2020

The second edition adds content on BPF, BCC, bpftrace, perf, and Ftrace, mostly removes Solaris, makes numerous updates to Linux and cloud computing, and includes general improvements and additions. A year ago I announced [BPF Performance Tools: Linux System and Application Observability].

Systems 52

Systems Cloud Performance Tuning 52

Brendan Gregg

JULY 14, 2020

The second edition adds content on BPF, BCC, bpftrace, perf, and Ftrace, mostly removes Solaris, makes numerous updates to Linux and cloud computing, and includes general improvements and additions. A year ago I announced [BPF Performance Tools: Linux System and Application Observability].

Systems 52

Systems Cloud Performance Tuning 52

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

OCTOBER 8, 2018

It is being developed for BSD, too, where BPF originated. That post covered the [bcc] front end (BPF Complier Collection), which has let me rewrite my DTraceToolkit tools. Internally, bpftrace uses a lex/yacc parser to convert programs to AST, then llvm IR actions, then BPF. It's shaping up to be a DTrace version 2.0:

C++ 110

C++ Virtualization Programming Latency 110

Brendan Gregg

JANUARY 1, 2019

I wrote many of these example files (and man pages, and tools), which are like an extra 50 blog posts you'll find in the bcc repo. bcc tools are of two parts: the BPF code for the kernel, written in C, and the user-space tool written in Python (or lua, or C++). What's missing is production examples. bcc Reference Guide.

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C++ Virtualization Programming Code 111

Dynatrace

DECEMBER 18, 2023

If you’re curious about this topic and would like to learn more, please subscribe to our blog, as we will soon be back with another blog post on how to monitor and observe your Collector instances. # TYPE kepler_exporter_build_info gauge kepler_exporter_build_info{branch="",goversion="go1.18.1",revision="",version=""}

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Metrics Engineering Energy Tuning 186

Brendan Gregg

DECEMBER 31, 2018

In summary: - Beginner: run [bcc] tools - Intermediate: develop [bpftrace] tools - Advanced: develop [bcc] tools, contribute to bcc & bpftrace Update: I have a new book about eBPF tracing, published by Addison Wesley: [BPF Performance Tools: Linux System and Application Observability]. Beginner ## 1. bcc Reference Guide.

C++ 52

C++ Virtualization Programming Code 52

Brendan Gregg

JUNE 3, 2021

Later on I wrote much better socket tools (in my [DTrace] and [BPF] books). I'm reminded of this first case since my BPF tools are now appearing in observability products, and will grow to a scale much bigger than my DTrace tools. . ## Other Cases Of all the tools I had published as open source, I still can't believe socketsnoop.d

Open Source 40

Open Source Code Engineering Technology 40

Brendan Gregg

APRIL 14, 2022

I hope my last two books, Systems Performance 2nd Ed and BPF Performance Tools serve Netflix well in my absence and everyone else who reads them. Apart from developing tools, much of my time has been spent helping teams with performance issues and evaluations. Thank you. I'll still be posting here in my next job. More on that soon.

Java 52

Java Cache Cloud AWS 52

Adrian Cockcroft

NOVEMBER 18, 2019

OPN303 BPF performance analysis (repeats) Learn how Netflix uses eBPF to create powerful performance analysis tools. Brendan Gregg tours BPF tracing, with open source tools & examples for EC2 instance analysis. based on my short eBook, Cloud for CEOs ARC335 Failure is Not an Option ?—?a

Open Source 40

Open Source AWS Lambda Serverless 40

Adrian Cockcroft

NOVEMBER 18, 2019

OPN303 BPF performance analysis (repeats) Learn how Netflix uses eBPF to create powerful performance analysis tools. Brendan Gregg tours BPF tracing, with open source tools & examples for EC2 instance analysis. based on my short eBook, Cloud for CEOs ARC335 Failure is Not an Option ?—?a

Open Source 40

Open Source AWS Lambda Serverless 40

Brendan Gregg

AUGUST 26, 2021

I spend many hours documenting advanced debugging stories for books, talks, and blog posts, but many things I never have time to share. bpftrace tool from my BPF book traces the signal:signal_generate tracepoint, which should catch every type of generated signal, including tgkill(2). No editing, spell checking, or comments.

Storage 145

Storage C++ Processing Database 145

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. The final piece was enhanced BPF (aka eBPF: enhanced Berkeley Packet Filter), which provided the custom in-kernel programmability needed for an advanced tracer, created by Alexei Starovoitov (now at Facebook).

Virtualization 76

Virtualization AWS Engineering Hardware 76

Brendan Gregg

OCTOBER 7, 2018

It is being developed for BSD, too, where BPF originated. That post covered the [bcc] front end (BPF Complier Collection), which has let me rewrite my DTraceToolkit tools. Internally, bpftrace uses a lex/yacc parser to convert programs to AST, then llvm IR actions, then BPF. It's shaping up to be a DTrace version 2.0:

C++ 40

C++ Virtualization Programming Latency 40

Brendan Gregg

MAY 16, 2017

As before, no one at Netflix has asked me to write this, and this is my personal blog and not a company post. I also worked with Alexei Starovoitov (now at Facebook) on enhanced BPF for tracing, and developed many [bcc tools] that use BPF. eBPF]: /blog/2016-10-27/dtrace-for-linux-2016.html

Java 75

Java Entertainment Engineering Scalability 75

Brendan Gregg

MAY 28, 2021

Back in 2015 we'd have BPF (iovisor) meetups in Santa Clara and most contributors would be there in person, with some having travelled. Why move to Australia?]: [link] [headline]: [link] [Systems Performance 2nd Edition]: /systems-performance-2nd-edition-book.html [SRE oncall]: /blog/2016-05-04/srecon2016-perf-checklists-for-sres.html ?:

Google 40

Google Engineering Open Source AWS 40

Brendan Gregg

AUGUST 26, 2021

I spend many hours documenting advanced debugging stories for books, talks, and blog posts, but many things I never have time to share. bpftrace tool from my BPF book traces the signal:signal_generate tracepoint, which should catch every type of generated signal, including tgkill(2). No editing, spell checking, or comments.

Storage 40

Storage C++ Processing Database 40

The Netflix TechBlog

FEBRUARY 20, 2019

For more information on the background and architecture of Vector and PCP, you can see our earlier tech blog post “ Introducing Vector ”. For that to work, there needed to be a PCP interface for BPF.

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Performance Latency Open Source Metrics 211