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Brendan Gregg
Brendan Gregg's homepage: I use this site to share various things, mostly my work with computers, specifically, computer performance analysis and methodology.
- Popular posts
- 41
- Total points
- 13,732
- HN comments
- 4,266
- Rank
- #53 personal
Visit brendangregg.com → On Hacker News May 2014 – Feb 2026
Systems & Performance 32Tools & Productivity 20Career & Management 9Tech Industry & Business 8Infrastructure & DevOps 4AI & Machine Learning 2
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Linux Load Averages: Solving the Mystery
Linux load averages explained, including why they include the uninterruptible I/O sleep state.
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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.
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Bpftrace for Linux 2018
bpftrace (DTrace 2.0) for Linux 2018: the bpftrace front-end
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BPF Performance Tools: Linux System and Application Observability
BPF Performance Tools: Linux System and Application Observability (book)
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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.
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Flame Graphs vs Tree Maps vs Sunburst (2017)
Flame Graphs vs Tree Maps vs Sunburst explores different hierarchal visualizations by visualizing file system or disk space.
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Linux perf rides the rocket
Kernel Line Tracing: Linux perf Rides the Rocket