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LR性能测试结果样例分析 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...队列长度、内存使用率来看，被测服务器的硬件资源需要提升。
网页细分图
网页细分图可以评估页面内容是否影响事务响应时间。使用网页细分图，可以分析网站上有问题的元素（例如下载很慢的图像或打不开的链...
Uber5岁了，一次性告诉你它的商业之道 - 资讯 - 清泛网 - 专注C/C++及内核技术
...人驾驶汽车成为行业主力，驾驶不再是人力所必需的生存技能。
“但变革肯定会带来一部分人失业，会产生社会阵痛，这是在所难免的。”长江商学院战略学副教授滕斌圣对《中国新闻周刊》说，“但社会资源配置总是向更优...
廉价共享存储解决方案1-drbd+ha+nfs - 更多技术 - 清泛网 - 专注C/C++及内核技术
...节点硬盘操作
1. 关闭主节点服务器，临时将辅节点提升为Primary
2. 为主节点替换新硬盘，并开机
3. 主节点正常启动后，关闭drbd进程
/etc/init.d/drbd stop
4. 对硬盘进行格式化，切忌不要为其创建EXT3文件系统
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Deleting elements from std::set while iterating
I need to go through a set and remove elements that meet a predefined criteria.
8 Answers
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Could someone explain the pros of deleting (or keeping) unused code?
...eard many times that unused code must be deleted from the project.
However it is not clear for me "why?".
11 Answers
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Why is it necessary to set the prototype constructor?
In the section about inheritance in the MDN article Introduction to Object Oriented Javascript , I noticed they set the prototype.constructor:
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What does the construct x = x || y mean?
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It means the title argument is optional. So if you call the method with no arguments it will use a default value of "Error".
It's shorthand for writing:
if (!title) {
title = "Error";
}
This kind of shorthand trick with...
Why does Twitter Bootstrap Use Pixels for Font Size?
Given that Twitter Bootstrap is designed to be responsive / device-friendly, why doesn't it use relative font sizes?
5 Answ...
Is it bad practice to make a setter return “this”?
Is it a good or bad idea to make setters in java return "this"?
27 Answers
27
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Why is Git better than Subversion?
...few years and after using SourceSafe , I just love Subversion. Combined with TortoiseSVN , I can't really imagine how it could be any better.
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