Best of 2018

The blog posts Hacker News loved most in 2018. 4,419 posts.

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3823

A new JPEG format

The Joint Photographic Experts Group (JPEG), an international committee headed by an EPFL professor, has just unveiled JPEG XS. With this new format, the image-compression process uses less energy, and higher-quality images can be sent with low latency over broadband networks like 5G. JPEG XS will have applications in…

3826

When the Compiler Bites

So far this year I’ve been bitten three times by compiler edge cases in GCC and Clang, each time catching me totally by surprise. Two were caused by historical artifacts, where an ambiguous specification lead to diverging implementations. The third was a compiler optimization being far more clever than I expected…

3833

Basics of Futexes

The futex (short for "Fast userspace mutex") mechanism was proposed by Linux contributors from IBM in 2002 [1] ; it was integrated into the kernel in late 2003. The main idea is to enable a more efficient way for userspace code to synchronize multiple threads, with minimal kernel involvement.

3836

Dapps

A friend asked me at breakfast this week “what gets you excited in crypto these days?” I answered “Dapps.” If the second half of 2016 and all of 2017 was about raising capital to fund development efforts (and speculating on all of that), then it sure feels like 2018 is the year we start getting […]