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Java 理论与实践: 线程池与工作队列 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...并发实用程序,这个包应该用于 Java 开发工具箱 1.5 发行。 结束语 线程池是组织服务器应用程序的有用工具。它在概念上十分简单,但在实现和使用一个池时,却需要注意几个问题,例如死锁、资源不足和wait() 及 notify(...
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Performance of FOR vs FOREACH in PHP

...for just the reference is actually less than copying the array (this is on 5.3.2)... So it appears (on 5.3.2 at least) as if references are significantly faster... share | improve this answer ...
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Correct way to delete cookies server-side

...er or any spec-compliant user agent. tools.ietf.org/search/rfc6265#section-5.3 dictates that "The user agent MUST evict all expired cookies from the cookie store if, at any time, an expired cookie exists in the cookie store." and to the best of my knowledge that is what every browser in fact does. ...
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How do I choose grid and block dimensions for CUDA kernels?

.../64k/32k/64k registers total (Compute 1.0,1.1/1.2,1.3/2.x-/3.0/3.2/3.5-5.2/5.3/6-6.1/6.2/7.0) Each block cannot consume more than 16kb/48kb/96kb of shared memory (Compute 1.x/2.x-6.2/7.0) If you stay within those limits, any kernel you can successfully compile will launch without error. Performance...
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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...

...的过程中,我们所说的拆分就出现V2.2和V3.0之 间。在V2.2 本中,淘宝几乎所有的逻辑都放在(Denali)系统中,这样导致的问题就是系统扩展和修改非常麻烦,并且更加致命的是随着淘宝业务量的增加,如果按照V2.2的架构已经没有...
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构建高并发高可用的电商平台架构实践 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...kafka有两种, RabbitMQ,遵循AMQP协议,由内在高并发的erlanng语言开发;kafka是Linkedin于2010年12月份开源的消息发布订阅系统,它主要用于处理活跃的流式数据,大数据量的数据处理上。 对消息一致性要求比较高的场合需要有应答确认...
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AI助手重构问题记录 - AI 助手 - 清泛IT社区,为创新赋能!

组件 WeatherWeb(Web) 没有事件 "WebError",已拒绝添加 [   {     "action": "ADD_BLOCK_INTENT",     "intent": [       {         "event": "QueryButton....
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How to turn on (literally) ALL of GCC's warnings?

...CC and Clang versions (currently Clang 3.2 through 3.7 and GCC 3.4 through 5.3). https://github.com/barro/compiler-warnings share | improve this answer | follow ...
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Approximate cost to access various caches and main memory?

... 1.2 ns ) local L2 CACHE hit, ~10 cycles ( 5.3 - 3.0 ns ) local L3 CACHE hit, line unshared ~40 cycles ( 21.4 - 12.0 ns ) local L3 CACHE hit, shared line in another core ~65 cycles ( 34.8 - 19.5 ns ) local L3 CACHE hit, modified in another core ...
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C++使用OLE/COM高速读写EXCEL的源码 - C/C++ - 清泛网 - 专注C/C++及内核技术

...OLE/COM库插件,定义好了各类交互的接口,这些接口是跨语言的接口。VC可以通过导入这些接口,并通过接口来对Excel的操作。 由于本文只关心对Excel表格中的数据的读取,主要关注几个_Application、Workbooks、_Workbook、Worksheets、_Work...