How do Ruby & Python profilers work?
Almost all of these profilers live inside your process Before we start getting into the details of these profilers there’s one really important thing – all of these profilers except pyflame run inside your Python/Ruby process. If you’re inside a Python/Ruby program you generally have pretty easy access to its stack. For example here’s a simple Python program that prints the stack of every running
Introduction - rbspy: A Sampling CPU Profiler for Ruby
rbspy Have you ever wanted to know what functions your Ruby program is calling? rbspy can tell you! rbspy lets you profile Ruby processes that are already running. You give it a PID, and it starts profiling! It's a sampling profiler, which means it's low overhead and safe to run in production. Quick start If you're on macOS, install rbspy with Homebrew: brew install rbspy If you have a working Rus
Fast JSON API serialization with Ruby on Rails
by Shishir Kakaraddi, Srinivas Raghunathan, Adam Gross and Ryan Johnston We are pleased to announce the open source release of the Fast JSON API gem geared towards Ruby on Rails applications. Introduction Fast JSONAPI is aimed at providing all the major functionality that Active Model Serializer (AMS) provides, along with an emphasis on speed and performance by meeting a benchmark requirement of b
Bending The Curve: Putting Rust in Ruby with Helix
Two years ago at RubyKaigi, we demonstrated our initial work on Helix, an FFI toolkit that makes it easy for anyone to write Ruby native extensions in Rust. In this talk, we will focus on the challenges and lessons we learned while developing Helix. What did it take to fuse the two languages and still be able to take advantage of their unique features and benefits? How do we distribute the extensi
Graphing Benchmark Results in Ruby
Nothing presents performance statistics quite as well as having graphs for benchmarks. Whether you want to present an alternative way for code guidelines based on performance or show a presentation, seeing the difference makes a difference. What we'll cover here will show you how to generate graph data images from your own Ruby codebase's benchmark suite, with presentation-worthy quality. The benc
Hamlを3倍速くした - k0kubun's blog
Hamlコミッターになった RubyKaigi 2015で「Hamlは遅いしメンテされてないので使わない方がいい」と言ったところ、じゃあ自分でメンテして速くしろということになりコミッターになった*1。 当時から2年ごしなのは、当時のHamlのオーナーがあまりアクティブではなく、最近a_matsudaさんがオーナーになったため。 HamlのTemple化・高速化を行った Templeというのは、テンプレートエンジンをパイプライン的に構築するためのフレームワークで、テンプレートエンジン用の中間表現とその最適化エンジンを持つ。実装をTempleベースにすると、SlimやHamlitに使われているような中間表現を使った最適化を適用しやすくなる。 コミット権をもらったので、RubyKaigi 2015でマージされないと言っていたパッチを自分でマージし、コード生成とattributeのコンパイルをTe
GitHub - tildeio/helix: Native Ruby extensions without fear
⚠️ Deprecated ⚠️ Sadly, we have made the decision to deprecate this project. While we had hoped to bootstrap the project to a point where it could flourish as a community project, unfortunately we ran into a number of roadblocks along the way, along with the need for significant architectural overhaul. While these issues are solvable on a technical level, doing so correctly requires more resources
OneSignal now sends iOS push notifications 100x faster
Say hi to "OnePush", our new push delivery backend! This past week, our team launched OnePush -- our new push delivery backend written in Rust. The number of developers using OneSignal has more than doubled since the start of the year. As our user base grows, the load on our system responsible for delivering notifications reaches closer and closer to 100% of our capacity during peak times. In orde
Handling 1 Million Requests per Minute with Go
Handling 1 Million Requests per Minute with Go Jul 6, 2015 Here at Malwarebytes we are experiencing phenomenal growth, and since I have joined the company over 1 year ago in the Silicon Valley, one my main responsibilities has been to architect and develop several systems to power a fast-growing security company and all the needed infrastructure to support a product that is used by millions of peo
Parse
The most amazing feature of Parse Server is that it’s accessible for developers of all skill levels. Personally, I started playing around with Objective-C in 2012. Parse was a way for me to build a complete online app, without having the in-depth knowledge of how to build networking, storage, user systems, etc. The more I built with Parse, the more I learnt JavaScript, which has fortunately allowe
[翻訳] Elixir - 次に来る大物Web言語 - Qiita
Lau Taarnskovさんの2015年4月19日付のブログ記事、Elixir - The next big language for the webの翻訳です。 ElixirはErlangのVM上で走る、Rubyにちょっと似た(というのも作者(José Valim)がRuby on Railsのcoreチームメンバーなので)関数型言語です。 2012年に登場していてQiitaでもAdvent Calendarなどが既にあるようですがまだあまり知られていないですね。ElixirとPhoenix Frameworkを組み合わせたものがマイクロ秒のオーダーで反応が帰る爆速だそう(ホントかな～)で興味を持ちました。 しかしほんの10年前ぐらいの話がもう遥かな昔話に聞こえますね…。 (追記：実際にプログラムを書いてみました → Elixirで試しに何か書いてみる(その1) Elixirで試しに何
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Writing Fast Ruby
Originally presented at Baruco 2014. Updated for RubyConf Portugal 2014. Video here: https://www.youtube.com/watch?v=fGFM_UrSp70.
Opal Ruby Casino Sites - Best Online Casinos
There are tens of hundreds of internet casinos available online. On OpalRB you will find only gambling operators approved by Gambling Commissions, with clear bonus terms and conditions and legit, fast payout methods. Opal Ruby casino sites are loading fast on desktop and on mobile. Casinos comparison can be run in any browser with no special app implementation. Safe and reputable online casinoOur
Simple recommendation system written in Ruby
I'm looking for new job; so yesterday I went through my old Rails projects, trying to describe them for my updated CV. I found interesting old project where I wrote recommendation system. Nothing fancy, just simple tag based recommendation for blog articles. I decided to extract some of the code and blog about it. Algorithm used for recommendation is based on Jaccard Index and is also known as the
Sneakers | Performance Background Processing for Ruby
Performance. Combined multi-process and multi-threaded processing model maxes out all your cores. Workers. Out of the box worker management, metrics, message handling and more, while being highly configurable and easily extensible. RabbitMQ. We built on RabbitMQ — a robust, performant and stable queue broker that everyone loves.
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GitHub - rbspy/rbspy: Sampling CPU profiler for Ruby
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GitHub - k0kubun/md2key: Convert markdown to keynote
ParseがRubyからGoへ移行，信頼性が大きく向上
