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std::vector performance regression when enabling C++11
...a.out' (10 runs):
35.426793 task-clock # 0.986 CPUs utilized ( +- 1.75% )
4 context-switches # 0.116 K/sec ( +- 5.69% )
0 CPU-migrations # 0.006 K/sec ( +- 66.67...
MFC RadioButton用法详解 - C/C++ - 清泛网 - 专注C/C++及内核技术
...m_RBtGroup3);
DDX_Control(pDX, IDC_RADIO9, m_RBtGroup4);
}
问题一：如何更改RadioButton默认值？？？
方法1
在定义控件变量时，默认变量初值为-1，表示此组的任何RadioButton均不被选中，如果需要改变初始默认按钮的设置情况，...
How to determine the memory footprint (size) of a variable?
... like shown below:
Xhprof + Xhgui (the best in my opinion to profile both cpu and memory)
With Xhprof and Xhgui you can profile the cpu usage as well or just the memory usage if that's your issue at the moment.
It's a very complete solutions, it gives you full control and the logs can be written bo...
C++11 introduced a standardized memory model. What does it mean? And how is it going to affect C++ p
...n does not make reference to any particular compiler, operating system, or CPU. It makes reference to an abstract machine that is a generalization of actual systems. In the Language Lawyer world, the job of the programmer is to write code for the abstract machine; the job of the compiler is to act...
Eclipse RCP开发桌面程序 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...进依赖项，否则会出错。最开始的时候，就是这么一点小问题，让我浪费了几天时间。
再点击添加必须的插件，自动添加其它的依赖项。
再下一步，设置项目的构建路径，如下图：
下一步，导出我们的...
What does WISC (stack) mean? [closed]
...m "stack computers" (stack machines).
Perhaps the most famous are the WISC CPU/16 and the WISC CPU/32 designed by Philip Koopman; each design is a "stack computer" (as opposed to a "memory-to-memory machine" or "RISC" or "accumulator machine").
...
What does scale horizontally and scale vertically mean? [duplicate]
...unchanged. Reasons to scale vertically include increasing IOPS, increasing CPU/RAM capacity, and increasing disk capacity.
Horizontal Scaling
Horizontal scaling, or increasing the number of nodes in the cluster, reduces the responsibilities of each member node by spreading the keyspace wider and p...
register int i;的含义 - C/C++ - 清泛网 - 专注C/C++及内核技术
...t i;的含义register声明的作用是为了提高效率。它明确要求CPU把变量始终保存在寄存器里面，直至它消亡。不过现代编译器都很厉害，根本不需要你多此一...register声明的作用是为了提高效率。
它明确要求CPU把变量始终保存在寄...
C++使用多核编译，加快编译速度 - C/C++ - 清泛网 - 专注C/C++及内核技术
...行：加 /MP
Linux make编译时只需要加 -j 指定编译使用CPU核心数：
make -j 4 //使用4个核编译
make -j //不指定数量，则自动探测CPU核心数量，全部参与编译
Eclipse（实际也是指定make -j）
项目属性 -> c/c++ Build -> Behavior -> Enable...
国产操作系统迎发展机遇 业内呼吁建立联盟打造生态 - 资讯 - 清泛网 - 专注...
...结合作。据了解，目前从事操作系统超过十家企业，从事CPU研发的有六七家。倪光南认为：“我们已经有一些掌握操作系统核心技术、掌握CPU核心技术的若干企业，但应该要集中力量办大事。形成一个联盟，制定统一的标准，完...