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淘宝网采用什么技术架构来实现网站高负载的 - 更多技术 - 清泛网 - 专注C/C...

...持久性数据源,比如数据库,文件系统等等。 二、有效使用缓存(Tair) 做互联网应用的兄弟应该都清楚,缓存对于一个互联网应用是多么的重要,从浏览器缓存,反向代理缓存,页面缓存,局部页面缓存,对象缓存等等都是缓...
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cpuid汇编指令 - C/C++ - 清泛网 - 专注C/C++及内核技术

...进,如果字母和数字都改变,说明改动较大,Stepping可以使用户可以识别微处理器的版本。下面是一个Stepping的例子。 当处理器签名一样时的处理 有时候,从处理器签名上仍然不能识别CPU,比如根据Intel提供的资料,Pen...
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Http长连接200万尝试及调优 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...冲的大小,但是不能超过最小与最大。为了使每个socket所使用的内存数最小,我这里设置默认值为4096。 net.ipv4.tcp_wmem 用来配置写缓冲的大小。 读缓冲与写缓冲在大小,直接影响到socket在内核中内存的占用。 而 net.ipv4.tcp_mem ...
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Typical .gitignore file for an Android app

...rnalNativeBuild # Google Services (e.g. APIs or Firebase) google-services.json # Freeline freeline.py freeline/ freeline_project_description.json # fastlane fastlane/report.xml fastlane/Preview.html fastlane/screenshots fastlane/test_output fastlane/readme.md ...
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Submitting HTML form using Jquery AJAX

... Quick Description of AJAX AJAX is simply Asyncronous JSON or XML (in most newer situations JSON). Because we are doing an ASYNC task we will likely be providing our users with a more enjoyable UI experience. In this specific case we are doing a FORM submission using AJAX. Rea...
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Google Tag Manager 入门指南 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...Hans,国外的话,之前也有很多类似的商业产品。 在正式使用Tag Manager之前,我们先看看没有这个工具之前,我们是如何管理Tag脚本的。 Step 1: 按照Google Analytics的配置要求,我们把如下的脚本放到网站全局的页脚,如:footer.i...
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How to know if user is logged in with passport.js?

..., url: '/login', contentType: 'application/JSON; charset=utf-8', data: JSON.stringify(data), success: funcSuccess, error: funcFail }); function funcSuccess(res) { sessionStorage.se...
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Heroku push rejected, no Cedar-supported app detected

...n: requirements.txt ruby: Gemfile # note the capitalization node: package.json share | improve this answer | follow | ...
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Adding header for HttpURLConnection

... also use the same thing in this way. public static String getResponseFromJsonURL(String url) { String jsonResponse = null; if (CommonUtility.isNotEmpty(url)) { try { /************** For getting response from HTTP URL start ***************/ URL object = new U...
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Chrome extension: accessing localStorage in content script

...nsion; store your data as JavaScript objects without serializing them to JSON (localStorage only stores strings). Here's a simple code demonstrating the use of chrome.storage. Content script gets the url of visited page and timestamp and stores it, popup.js gets it from storage area. content_s...