Welcome to the home of the Network Time Protocol (NTP) Project. The NTP Project conducts Research and Development in NTP, a protocol designed to synchronize the clocks of computers over a network to a common timebase. NTP is what ensures the reliability of billions of devices around the world, under the sea, and even in space. Accurate timekeeping is vital to the many applications which have revol
NEWS: (December 2015) Version 2.2.4 was released! Read about all the changes. (Notes for downstream package maintainers.) About demjson and jsonlint The demjson package is a comprehensive Python language library to read and write JSON; the popular language-independent data format standard. It includes a command tool, jsonlint, that allows you to easily check and validate any JSON document, and spo
In HBO’s Silicon Valley, lossless video compression plays a pivotal role for Pied Piper as they struggle to stream HD content at high speed. Inspired by Pied Piper, we created our own version of their algorithm Pied Piper at Hack Week. In fact, we’ve extended that work and have a bit-exact, lossless media compression algorithm that achieves extremely good results on a wide array of images. (Stay t
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vmprof-flamegraph を作ったのでその紹介をしておきます。 まず、サンプルとして Sphinx を使って Python のドキュメントをビルドしたときの vmprof 結果を flamegraph にしてみたので、どんなものかはこちらを見てみてください。 http://dsas.blog.klab.org/img_up/sphinx-prof.svg flamegraph について flamegraph の一般的な紹介については省略して、リンクだけ置いておきます。 公式サイト: http://www.brendangregg.com/FlameGraphs/cpuflamegraphs.html 日本語の紹介記事: http://d.hatena.ne.jp/yohei-a/20150706/1436208007 他にプロファイル結果をビジュアライズするツールとしては cac
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