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select、poll、epoll之间的区别总结[整理] - C/C++ - 清泛网 - 专注C/C++及内核技术
...），还是没人唤醒，则调用select的进程会重新被唤醒获得CPU，进而重新遍历fd，判断有没有就绪的fd。
（8）把fd_set从内核空间拷贝到用户空间。
总结：
select的几大缺点：
（1）每次调用select，都需要把fd集合从用户态拷贝到...
What is the best way to repeatedly execute a function every x seconds?
...eat answer as well, very accurate without drift. I wonder if this puts the CPU to sleep as well while waiting to execute the task (a.k.a. not busy-waiting)?
– smoothware
Apr 16 '19 at 21:37
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惨不忍睹：说一说你最穷的时候是什么样子 - 创意 - 清泛网 - 专注C/C++及内核技术
...话说，一分钱难倒英雄汉，有的时候没钱真的很难。那么问题来了，...
每个人的一生中都会和金钱打交道，每个人也都会遇到囊中羞涩的时候。俗话说，一分钱难倒英雄汉，有的时候没钱真的很难。那么问题来了，你最穷...
What is a “thread” (really)?
... to find a good definition, and get an understanding, of what a thread really is.
10 Answers
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无法解析的外部符号 _MiniDumpWriteDump@28，MiniDumpWriteDump lib文件 - ...
...clude <DbgHelp.h>#pragma comment(lib, "Dbghelp.lib") 解决链接失败的问题MiniDumpWriteDump是MS DbgHelp.dll 中一个API, 用于导出当前运行的程序的Dump。
#include <DbgHelp.h>
#pragma comment(lib, "Dbghelp.lib") 解决链接失败的问题
MiniDumpWriteDump lib文件
_csv.Error: field larger than field limit (131072)
...ue is a C long ([Wikipedia]: C data types), whose size varies depending on CPU architecture and OS (ILP). The classical difference: for a 64bit OS (Python build), the long type size (in bits) is:
Nix: 64
Win: 32
When attempting to set it, the new value is checked to be in the long boundaries, th...
Thread context switch Vs. process context switch
...that a context switch messes with the processors cacheing mechanisms. Basically, when you context switch, all of the memory addresses that the processor "remembers" in its cache effectively become useless. The one big distinction here is that when you change virtual memory spaces, the processor's Tr...
How do I fix “Failed to sync vcpu reg” error?
...to use the Intel HAX x86 emulator for Windows (8, if that matters). I installed everything and created an AVD for the android version, and everything appears correct, but when I run it, I get this output:
...
Can I redirect the stdout in python into some sort of string buffer?
...t)| (default, May 11 2017, 14:07:41) [MSC v.1500 32 bit (Intel)]
AMD/Intel CPU? True
VML available? True
VML/MKL version: Intel(R) Math Kernel Library Version 11.3.1 Product Build 20151021 for 32-bit applications
Number of threads used by default: 4 (out of 4 detected cores)
-=-=-=-=-=-=-=...
What is uint_fast32_t and why should it be used instead of the regular int and uint32_t?
...
int may be as small as 16 bits on some platforms. It may not be sufficient for your application.
uint32_t is not guaranteed to exist. It's an optional typedef that the implementation must provide iff it has an unsigned integer type of exactl...