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Dtrace Review

6 videos recommended on HN
YouTube
4 HN users recommended this talk4 months2013–2026 score 5.5
Years with an HN recommendation, 2007–2026

HN regards it as a gem of a technical talk that tackles a fundamental debugging problem and shows a new technology solving it.

Bryan Cantrill's 2007 Google Tech Talk on DTrace, showing how dynamic tracing improves debugging of both development and live production systems. It includes a vivid war story about tracking down a problem on a Sun Ray server.

“I'm partial to Bryan Cantrill's Dtrace talk since it tackles a fundamental problem in software engineering and shows how to solve it using a new technology.” (HN, 2013)

3 strong recommendations · 2 recommendations · 2 citations · Talks · intermediate

7 Hacker News comments

From the HN archive; up to 20 kept per video, favoring different commenters. Recommendations first.

@dmit Apr 2013 Strongly recommends
on HN thread Ask HN: What's the best technical talk you've heard?
I'm partial to Bryan Cantrill's Dtrace talk since it tackles a fundamental problem in software engineering and shows how to solve it using a new technology. The talk is more than 5 years old now, but sadly still as relevant as ever. [this video]
Tackles a fundamental software engineering problem and solves it with new technology.
@mwcampbell Oct 2016 Strongly recommends
on HN thread Ask HN: What's your favorite tech talk?
A few of Bryan Cantrill's talks have already been mentioned here, but this one about DTrace, from 2007, is a gem: [this video] I especially like the part in the middle where he tells the story of how a an awful GNOME applet was killing a Sun Ray server, and how he tracked down the culprit with DTrace.
Story of tracking down an awful GNOME applet killing a Sun Ray server.
@mwcampbell Jul 2025 Recommends
on HN thread Using Sun Ray thin clients in 2025
For an extended, colorful telling of the experience outlined in that paper, check out Bryan's earliest recorded talk on DTrace, particularly the section starting at the timestamp in this link: [this video]
Extended, colorful telling of the early DTrace production experience.

Citations, criticism and jokes

@mwcampbell Apr 2023 Cites it
on HN thread Of Sun Ray laptops, MIPS and getting root on them
Reading about Sun Ray reminds me of Bryan Cantrill's oldest online DTrace talk [1], particularly the story of how a GNOME 2 stock ticker applet overloaded a Sun Ray Server, and how Bryan used DTrace to find the culprit. [1]: [this video]
Story of a GNOME stock ticker applet overloading a Sun Ray server.
@bcantrill May 2026 Cites it
on HN thread Setting up a Sun Ray server on OpenIndiana Hipster 2025.10
This is so great to see. I (like many!) have fond memories of Sun Ray. For me (and I suspect for others) Sun Ray will always represent the best of Sun -- and (of course!) some of the company's unrealized potential. As an aside on Sun Ray, it played a very important (if incidental) role in the development of DTrace in that one of the first truly production systems we used DTrace on was a Sun Ray server inside of Sun that was in a huge amount of pain. (I described this in the DTrace USENIX paper[0], and also in my "Dtrace (sic) Review" talk at Google ca. 2007.[1]) [0] [link] [1] [this video]
Author's own talk describing Sun Ray's role in DTrace's development.

Video list and Hacker News comment labels from HackerTube (prompted by @karpathy), released under ODC-By 1.0, built on the open-index/hacker-news archive. Hacker News data is provided by Y Combinator; comments remain the work of their authors. Video titles, channel names and thumbnails belong to their creators and are shown via YouTube. HackerTube Watch is an unofficial edition. Data export of 2026-10-31.

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