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The disappointingly ongoing success of WvDial
In Farmington, CT, in fact, the town my cat was named after. Oh yes. That's how much we love that place. Lukasz, Ashok, and Matt will be...
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The latest blog posts to take off on Hacker News. 62 posts.
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High Performance at Massive Scale: Lessons Learned at Facebook
Recently, we were fortunate to host Jeff Rothschild, the Vice President of Technology at Facebook, for a visit for the CNS lecture series. Jeff’s talk, “High Performance at Massive Sca…
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Put that database in memory
Writings on artificial intelligence, personalization, recommendations, and the tech industry.
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100,000 tasklets: Stackless and Go
I made a mistake when first publishing this and used the wrong date. Now that I've fixed it you'll have to go to the correct page to see it.
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Arbitrary code execution via ldd utility
The `ldd` utility is more vulnerable than you think. It's frequently used by programmers and system administrators to determine the dynamic library dependencies of executables. Sounds pretty innocent, right? Wrong! In this article I am going to show you how to create an executable that runs arbitrary code if it's...
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Design Lessons & Advice from Building Large Scale Distributed Systems at Google
Jeff Dean of Google did an excellent keynote talk at LADIS 2009 . Jeff’s talk is up at: http://www.cs.cornell.edu/projects/ladis2009/talks/dean-keynote-ladis2009.pdf and my notes follow:
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How not to test that mysqld is alive
I had a call from a new customer last week. They had issues with their MySQL server. Apparently, it was repeatingly crashing, every few hours. To have their production system kept alive, they used …
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A performance comparison of Judy to hash tables
Numerous claims about Judy's performance are made in the Judy whitepaper . I don't think any of those claims are wrong. However, it does not appear that sufficient effort was put in benchmarking Judy against other data structures. Now, it is unlikely there is another data structure that is both as fast and as small as…
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Erlang, Yaws, and the deadly Tornado
Good things sometimes happen to the open source community. Since Facebook acquisition of FriendFeed, a bunch of technologies were released to the wild, including, most notably, a Tornado web server written in Python. The Tornado is touted as a a scalable, non-blocking web server and web…
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SQLite: A Lesson In Low-Defect Software (review/summary w/ working source)
[EDIT: Minor edits to fix HTML formatting, style, corrected footnote credit, and code indentation the editor kills on every edit.] While l...
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World's smallest Arc server
The frame below is being served was being served by the Arc language web server running on a SheevaPlug plug computer. (I've replaced th...
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Just give me a simple CPU and some I/O ports
Back when I started programming computers came with circuit diagrams and listings of their firmware. The early machines I used like the Sha...
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