大约有 36,000 项符合查询结果（耗时：0.0427秒） [XML]
What is thread contention?
... running.
Why? Say each thread is running on its own core on a modern x86 CPU and the cores don't share an L2 cache. With just one thread, the object may remain in the L2 cache most of the time. With both threads running, each time one thread modifies the object, the other thread will find the data...
如何高效的学习掌握新技术 - 杂谈 - 清泛网 - 专注C/C++及内核技术
...当于又打开了一扇新的大门，可以从更宽广的角度来看待问题。
从心理学的角度来说，我们对于外部世界的认识可分为三个区域：舒适区，学习区，和恐慌区。我们所熟悉的技术领域就是舒适区，而新技术是处于学习区或恐慌...
What is “vectorization”?
...
Many CPUs have "vector" or "SIMD" instruction sets which apply the same operation simultaneously to two, four, or more pieces of data. Modern x86 chips have the SSE instructions, many PPC chips have the "Altivec" instructions, an...
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，...
Easily measure elapsed time
...
By the way, this measures CPU time, not wall clock time. Right?
– Nikos
Jan 22 '17 at 0:40
4
...
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...
Running the new Intel emulator for Android
... should work much better than the previous version (which has emulated ARM CPU). Here are some links about it: this and this .
...
Is multiplication and division using shift operators in C actually faster?
...uages, they're specifically designed to hide the details of the underlying CPU instruction set. To satisfy their language Standards, they must support multiplication and shifting operations (and many others) even if the underlying hardware doesn't. In such cases, they must synthesize the required ...
How to detect user inactivity in Android
...n here as it is out of scope of the question
You can wake the lock to the cpu by using the device code below-
if(isScreenOff || getLastInteractionTime()> 120000 || !isInForeGrnd)
{
//...... means USER has been INACTIVE over a period of
// and you do your stuff like log the us...
蜘蛛的故事 - 轻松一刻 - 清泛网 - 专注C/C++及内核技术
...下来，问这只蜘蛛：“你我相见总算是有缘，我来问你个问题，看你修炼了这一千多年来，有什么真知拙见。怎么样？”蜘蛛遇见佛主很是高兴，连忙答应了。佛主问到：“世间什么才是最珍贵的？”蜘蛛想了想，回答到：“世...