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No, ZFS really doesn't need an fsck tool
(This blog entry has been recovered for the sole purpose of repairing a link in Hackernews. This blog entry is otherwise hidden on the website. 2026-04-13)
New
The latest blog posts to take off on Hacker News. 190 posts.
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HTTP Archive: jQuery
A recent thread on Github for html5-boilerplate discusses whether there’s a benefit from loading jQuery from Google Hosted Libraries , as opposed to serving it from your local server. They referenced the great article Caching and the Google AJAX Libraries by Steve Webster.
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GCC and C vs C++ Speed, Measured
With the imminent release of gcc 4.8, GCC has finally switched to C++ as the implementation language. As usual, LWN has excellent coverage. Those with long memories will remember Linux trying to use g++ back in 1992 and retreating in horror at the larger, slower code. The main benefit was stricter typechecking…
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Tracking down a memory leak in Ruby's EventMachine
At Stripe, we rely heavily on ruby and EventMachine to power various internal and external services. Over the last several months, we’ve known that one such service suffered from a gradual memory leak, that would cause its memory usage to gradually balloon from a normal ~50MB to multiple gigabytes. It was easy enough…
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Stack Exchange’s Colocation Move: Lessons Learned
Moving about 35 servers, something like 2000 pounds of computer hardware 50 blocks, doesn’t seem like that big of a thing. However, in our geek microcosm moving to a new colocation facility was a year long adventure with lessons learned, arguments, designs and redesigns, a hurricane, and many weekends of preparation…
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Linux 3.8 Released
Summary of the changes and new features merged in the Linux Kernel during the 2.6.x and 3.x development
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Heroku Blog: Routing Performance Update
Over the past couple of years Heroku customers have occasionally reported unexplained latency on Heroku. There are many causes of latency—some of them have
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Heroku - Bamboo Routing Performance
Yesterday, one of our customers let us know about significant performance issues they have experienced on Heroku. They raised an important issue and I want
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Go and Assembly
Hi I'm Caleb Doxsey and welcome to my website. I'm a software developer. If you'd like to contact me, you can email me here: [email protected] .
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C++ containers that save memory and time
The latest news from Google on open source releases, major projects, events, and outreach programs for early career developers.
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Cache Rules Everything Around Me
Attached Code: https://github.com/iainkfraser/cache_transpose Before we begin, the underlined words are briefly described in the gloss...
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On Layout and Web Performance
Outside of initial page load problems, “layout thrashing” is the most common performance problem I see in dynamic web applications. This is particularly true for Single Page Applications which build and destroy views on the fly. However, I’m often amazed by the number of web developers I run into who are unaware of…
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600K concurrent HTTP connections with Clojure and http-kit
Edit(2013/1/29): http-kit is a event driven HTTP server & client for Clojure. It’s open source, https://github.com/http-kit
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IDIV DoS (INT_MIN / -1)
A little fun for the last day of 2012: how to crash a program via division? x86’s IDIV instruction traps not only on division by zero, but also on INT_MIN / -1 (signed integer overflow).
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Systemd: The Biggest Myths
Posts and writings by Lennart Poettering