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Compiling with g++ using multiple cores
...ge projects quicker (for example 4 source files at a time for a multi-core CPU)?
8 Answers
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Unicode与UTF-8互转(C语言实现) - C/C++ - 清泛网 - 专注C/C++及内核技术
...体系, 可以表示最多256个符号.
但是, 这里又出现了新的问题. 不同的国家有不同的字母, 因此, 哪怕它们都使用256个
符号的编码方式, 代表的字母却不一样. 比如, 130在法语编码中代表了é, 在希伯来语
编码中却代表了字母G...
C++常用排序算法汇总 - C/C++ - 清泛网 - 专注C/C++及内核技术
...
arr[i-1] = key;
i--;
count++;
}
//将待插入的数定位到下一个元素，
//因为后面还要执行i++，所以这里不再加1
i += count;
}
}
}
/*
第二种代码形式
插入排序后的顺序为从小到大
*/
void Insert_Sort2(int *arr,int l...
When to use PNG or JPG in iPhone development?
...
PNG's are pixel perfect (non-lossy), and require very little extra CPU energy to display. However, large PNGs may take longer to read from storage than more compressed image formats, and thus be slower to display.
JPG's are smaller to store, but lossy (amount depends on compression level),...
What is the purpose of the “Prefer 32-bit” setting in Visual Studio and how does it actually work?
...
Microsoft has a blog entry What AnyCPU Really Means As Of .NET 4.5 and Visual Studio 11:
In .NET 4.5 and Visual Studio 11 the cheese has been moved. The
default for most .NET projects is again AnyCPU, but there is more than
one meaning to AnyCPU now. T...
Tracking the script execution time in PHP
PHP must track the amount of CPU time a particular script has used in order to enforce the max_execution_time limit.
18 A...
AtomicInteger lazySet vs. set
...ill see it at the next read, because the cache coherence protocol of intel cpu will garantee LazySet works, but the cache line will be updated at the next read, again, the CPU has to be modern enough.
http://sc.tamu.edu/systems/eos/nehalem.pdf
For Nehalem which is a multi-processor platform, the pr...
How much overhead does SSL impose?
...ources were required; no network hardware, no new hosts. It only increased CPU load by about 1%.
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小端模式 和 大端模式的决定因素 - C/C++ - 清泛网 - 专注C/C++及内核技术
...和 大端模式的决定因素小端模式 和 大端模式：几乎是由CPU决定的，而非OS或编译器。大端模式和小端模式的区别这里暂不讨论，这里讨论他们是由操作系统、CPU还是编译器决定的呢？
通常来讲，可能大多数人认为是操作系统...
一体化的Linux系统性能和使用活动监控工具–Sysstat - 更多技术 - 清泛网 -...
...：
Sysstat的功能列表：
iostat：统计并报告你的设备的CPU状态和I/O状态数据。
mpstat：监控和显示关于CPU的细节信息。
pidstat：统计正在运行的进程/任务的CPU、内存等信息。
sar：保存和报告不同资源（CPU、内存、输入输出、网...