Brendan Gregg

An Unbelievable Demo

The return of the frame pointers

CPU Utilization is Wrong

Linux Load Averages: Solving the Mystery

Linux load averages explained, including why they include the uninterruptible I/O sleep state.

BPF: A New Type of Software

Linux Crisis Tools

DTrace for Linux 2016

DTrace for Linux 2016: announcing a major milestone: the final kernel capabilities have merged in Linux 4.9-rc1 to enhanced BPF (eBPF) to provide an advanced programmable dynamic tracer similar to DTrace.

No More Blue Fridays

No More Blue Fridays: How eBPF is already being adopted to prevent kernel crashes.

Solaris to Linux Migration 2017

Brendan at Intel.com

Brendan@Intel.com

Leaving Intel

Working at Netflix

Working at Netflix 2015: What is it like to work at Netfilx? Brendan Gregg describes his job and experiences at Netflix after several months as a senior performance architect.

ZFS is mysteriously eating my CPU

Why Don't You Use

TCP Tracepoints have arrived in Linux

Linux TCP Tracepoints, and using them via bcc/eBPF.

AI Flame Graphs

Netflix End of Series 1

Bpftrace for Linux 2018

bpftrace (DTrace 2.0) for Linux 2018: the bpftrace front-end

Brilliant Jerks in Engineering

BPF Performance Tools: Linux System and Application Observability

BPF Performance Tools: Linux System and Application Observability (book)

Where has my disk space gone? Flame graphs for file systems

Using the flame graph visualization to determine where file system or disk space is consumed, and answer where space has gone.

Meltdown Initial Performance Regressions

KPTI/KAISER Meltdown Initial Performance Regressions

Why I Joined OpenAI

eBPF Documentary

How to add eBPF observability to your product

Poor Disk Performance

Computing Performance on the Horizon

USENIX LISA2021 Computing Performance: On the Horizon

Linux Performance Analysis: New Tools and Old Secrets

Iosnoop For Linux

Working at Netflix 2017

Working at Netflix, 2017: a personal update from a performance engineer about working at the company.