Websites linking to octopress.org

继上次做性能优化之后，再次针对我们刚刚全新升级的 app 做了一轮性能调优，而这个过程又引起了我一些思考，这里做一个记录。 根据多年的经验，性能问题一般都是由后端服务引起，API 服务器忙都是受后端服务的拖累所表现出来的现象。所以一入手就是监控各个后端服务的运行情况，初步定位瓶颈在数据库上。 …

通过mongodump和mongorestore实现Mongodb备份和恢复 —by chenzhou123520 from http://chenzhou123520.iteye.com/blog/1630993 …

Github uses Linguist, a Ruby library, to help detect which programming language is in a given file. Recently, an issue was filed that indicated that …

One of the Elixir web apps we have at Adjust acts as an API gateway — it receives a request, applies authorization and/or authentication and then …

SSLScan is a tool that I often use when validating SSL findings on penetration tests. I had recently seen a new version come out, with color …

记录人生痕迹|分享技术心得 -- ToWriting.com. 一个立志独立思维的程序员的博客网站. 这里会记录下自己工作, 生活和回忆; 同时会分享编程等相关技术知识; 所有文章皆为原创或翻译.

通过前面几篇文章的介绍, 我们已经能够使用Spring Cloud开发出一个简单的系统了. 这篇文章里, 我们将关注点转移到如何提高微服务系统的容错性(Fault Tolerance), 并了解如何借助Hystrix开发健壮的微服务. 以往我们在开发单体应用, 或者调用RPC服务的时候, …

tl;dr The JavaScript community is doing a great job in creating an ecosystem of highly composable, configurable, and extensible components. …

多机环境下虚机网络实现机制（四） — SDN融合方案中，neutron底层网络运行机制 1、服务部署情况 一般而言，neutron-server和各neutron-plugin部署在控制节点或者网络节点上，而neutron agent则部署在网络节点上和计算节点上。 …

ShapelessStream, When Akka-Stream Meets Shapeless Coproduct at Compile-time …

Hiram Software Consulting

上一篇介绍了使用nginx扩展来实现websocket服务，最近自己使用C++造了同样的轮子(comet)，但是性能比nginx扩展要好些。思路是发布消息使用HTTP，订阅走websocket，只实现了websocket的推送消息。使用epoll/kqueue + 多线程， …

This is a sequel for the Journey From RequireJS to Browserify post. After publishing the previous post I got a lot of feedback saying that Browserify …

hello world :)

In the process of upgrading a Mac mini to be a server, I installed two SSDs to be configured as a RAID 1. One of the caveats to this approach is that …

这里主要记录下来在 “Algorithms: Design and Analysis Part 1” 的Programming Questions 中的算法、实现和作业中的困难。我是用的是 Python。Week 3 Programming Question 在这里。 Week 4 …

TinyPlant Spatial Ecology and Open Source Science Ian Breckheimer, PhD Candidate, University of Washington. Bio CV Publications Lab Updated 2017 …

ガジェットのレビューをしたり、プログラムやPCのソフト、アプリで行き詰まったことがあればその解決策を書いたりしています。

Tutorials, how-tos, musings, and code snippets about web development and technology. Using PHP, jQuery, mySql, MongoDB and more.

I was recently promoted from Senior Software Engineer to Lead Platform Engineer. While I had been performing some of the duties required of this …

Update: I’ve still never heard a peep from the company (and I’ve tried contacting them a few more times over the past few months), but …

Personal Blog

This will walk you through getting up and running from scratch with Apache OpenWhisk on OSX, and setting up an Action Sequence where the output of …

In this post I interpret design patterns and principles commonplace in object-oriented programming languages from the perspective of functional …

对于大多数 iOS 应用来说，图片往往是最占用手机内存的资源之一，同时也是不可或缺的组成部分。将一张图片从磁盘中加载出来，并最终显示到屏幕上，中间其实经过了一系列复杂的处理过程，其中就包括了对图片的解压缩。 图片加载的工作流 概括来说，从磁盘中加载一张图片，并将它显示到屏幕上，中间的主要工作流如下 …

機械学習をやるぞ！と息巻いてから半年が経とうとしている。 進捗はてんでダメ。ほとんど勉強せずに時間だけが過ぎてしまった。 さすがにこれではいけないと学習を始めた。 とりあえず学ぶにも何かしらの教材がないと効率が悪いと思い、基礎的な理論が勉強できそうな 「機械学習理論入門」を買った(半年前に)。 …

Just a quick post with the oneliner of the day. When you are debugging catalog compilation issues or other puppet performance issues in general, it …

Bikepacking | Climbing | Packrafting | Skiing | Mountaineering | Hiking

Over the past year my team has been doing something shocking to a lot of engineers: we’re favoring pure Java over Clojure. We aren’t …

Well hello there! I’m Miguel, also known in the internet world as Miguelgraz. I am a software developer/engineer passionate both by code and …

on agile software development

I am an Assistant Professor in the School of Computing, Informatics, and Decision Systems Engineering at Arizona State University. I am also …

In the previous post of this series we did a small improvement to the state monad implementation by generalizing it over the type of the state. This …

font-size is the worst. It’s a CSS property probably everyone who writes CSS has used at some point. It’s pretty ubiquitous. And it&rsquo …

よくプロジェクトでstagingやproductionブランチにリリース用のpull requestを送ってmergeする事でCircleCIが走って自動デプロイするような仕組みを入れているんだけど、いちいちGitHub上でポチポチ画面を押すのが面倒くさいのと、 …

A blog post from a few years ago that really stuck with me was Martin Olsson’s Browser Engines 2015: Commit Rates and Active Developer Counts, where …

Aku ingat front-end ady.my aku nak buat URL Shorterner. Ah! dari dulu aku ingat.. aku ingat.. dah masuk 4 tahun aku ingat. Kakaka!

It seems another quick maintenance update is needed to fix some bugs (unfortunately they raised due to the switch to Android Studio). Changelog: v5.2 …

Well, shit. Yesterday indie web ad network The Deck shut down. John Gruber, whose Daring Fireball was a founding site, wrote a beautiful post-mortem …

This blog post is just a short overview of the tools that I am using when working with Core Data. Launch Arguments To enable launch arguments for …

/home/jeff/blog

When Using Golang templates, it removes all comments from the template output. All IE condition comments lost and other features based on comments …

Hello. Welcome to the online presence of Jonathan J Hunt. You can view my academic publications, or my google scholar profile. My CV is here, but it …

My latest project are sailscasts

又是很久没有写技术博客了，盖因最近都在学习知识，也没有总结出什么值得分享的内容，所以一直停笔至今。最近的工作和钉钉的开发打上了交到，官方并没有提供任何Python的SDK，于是只能全部自己写。现在我将其中实现起来相对费时间的“加密/解密/签名”部分分享出来，希望能帮助到一些人。 加密/ …

Blog for Jeff Lee (aka @RebootJeff)

As many of you know I have spent much of the last six months writing a book on JavaScript. I am pleased to announce that last week APress began …

I am a mathematician working at UAEH. My research is mainly on Combinatorics and Graph Theory. Tweet Comments Please enable JavaScript to view the …

微信小程序，可以说是最近比较火的一个话题了，到处都是小程序的新闻，于是孤也来凑一凑热闹，花了几个小时撸了一个程序员老黄历，来体验一下小程序。

Emacs のパスがおかしかったので修正．

I’m Chris McCord, a programmer with a passion for science and building things. I spend my time crafting the Phoenix Framework, working with …

This post is a Scala version of Haskell Type-Level Instant Insanity by Conrad Parker This post shows an implementation of Instant Insanity puzzle …

I recently graduated from Harvard University (class of 2015) with a degree in Computer Science and Mathematics. This site has my sideprojects and …

Sometimes you need to execute a query on all Application Insights resources. It can be useful when you are searching some data and not sure which …

なんとなく色んな人のISUCON6の記事を読んでたら、Goの正規表現が遅くて苦労した、という話を多く見受けられた。そもそも一般的に正規表現自体が遅いとされており、だからこそ各言語では正規表現エンジンが色々実装されてたりするんだけど、Goではあまりそういう話を聞かない。 …

$(window).load(function(){ $('.flexslider').flexslider({ animation:

If there is one JavaScript library that could be classified as the Swiss Army Knives of JavaScript, it would have to be Lodash. Lodash is a tool that …

When using data providers in your phpunit tests to run the same test for N different sets of input data it is sometimes helpful if you can run the …

[This is a rambling post about iOS app development, Appcelerator Titanium, dealing with short deadlines, evolving feature sets, submitting to the App …

As programmers we rarely have a luxury to write a project from scratch. Usually we have to retrofit existing projects with all cool things we need. …

I’m using the collectiveidea fork of DelayedJob. There are two ways to create a DelayedJob record. First you can use the delay method. Second …

My employer, ThoughtWorks, is sponsoring a free download of three chapters of my upcoming book, ”Infrastructure as Code”. These chapters …

Exploring patterns as a means of documenting Clojure functions to aid recall and understanding. Whats the difference in Clojure between: partition …

JavaScript borrowed the new and delete keywords from its less-dynamic predecessor languages. They feel a bit out of place in a garbage collected …