大约有 36,000 项符合查询结果(耗时:0.0271秒) [XML]

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Is async HttpClient from .Net 4.5 a bad choice for intensive load applications?

...oduced similar results: about 10 seconds to execute using around 3% of the CPU and 30 MB of memory. The only difference between the two testers was that the multithreaded one used 310 threads to execute, while the asynchronous one just 22. So in an application that would have combined both I/O bound...
https://www.tsingfun.com/it/cpp/665.html 

线程访问窗口资源的问题 - C/C++ - 清泛网 - 专注C/C++及内核技术

线程访问窗口资源的问题在开个线程时常为所开的线程传入个窗口参数(cwnd),这里里面有个很大的隐患就是当做CWnd::AssertValid()检查,就会遇到断言失败。具...时常为所开的线程传入个窗口参数 (cwnd),这里里面有个很大的...
https://www.tsingfun.com/ilife/idea/737.html 

“21天教你学会C++” - 创意 - 清泛网 - 专注C/C++及内核技术

...未命中的情况),从磁盘上读取连续的数据要多长时间,定位到磁盘上的新位置又要多长时间。(答案在这里) 尝试参与到一项语言标准化工作中。可以是ANSI C++委员会,也可以是决定自己团队的编码风格到底采用2个空格的缩...
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What is “overhead”?

...ffer a lot with context. In general, it's resources (most often memory and CPU time) that are used, which do not contribute directly to the intended result, but are required by the technology or method that is being used. Examples: Protocol overhead: Ethernet frames, IP packets and TCP segments al...
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What's the difference between compiled and interpreted language?

...ist. Basically, compiled code can be executed directly by the computer's CPU. That is, the executable code is specified in the CPU's "native" language (assembly language). The code of interpreted languages however must be translated at run-time from any format to CPU machine instructions. This tr...
https://www.tsingfun.com/it/cpp/1414.html 

AfxGetApp->GetMainWnd() 与 AfxGetMainWnd() - C/C++ - 清泛网 - 专注C/C++及内核技术

...Wnd()取得的是主窗口句柄,无论在那个线程里调用都是没有问题的,因为它先取得主线程句柄,再取得主线程的活动窗口(如视图切换可能导致的替代,这种情况我也不大清楚),如果没有活动窗口则取主窗口,任何程序总要有一个主...
https://www.tsingfun.com/ilife/life/1846.html 

别问最低工资都涨了为啥你没涨 这三类人加薪很难 - 杂谈 - 清泛网 - 专注C/...

...工资上涨迅速,另一些人却迟迟无法迎来涨薪春天?这个问题只要站在公司角度考虑,自然一目了然。有权威机构对工薪族目前的工...在职场,一些人工资上涨迅速,另一些人却迟迟无法迎来涨薪春天?这个问题只要站在公司角...
https://bbs.tsingfun.com/thread-1824-1-1.html 

MQTT 打包后,运行退到后台在返回,mqtt连接掉线问题 - App应用开发 - 清泛...

打包后的APP安装到手机上,刚开始打开软件的时候,连接成功,屏幕退到后台在反回app界面的时候,显示MQTT未连接(联网失败) 请帮忙解决一下这个是需要进行状态管理,当状态变成连接失败时,需要进行一次重新连接:将连...
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串口Read不到数据的问题 - 用户反馈 - 清泛IT社区,为创新赋能!

用户发送的是 8n1 的格式,但是ai2的串口貌似不支持这种格式。写串口正常,读串口为空,len为0。 目前经过测试验证,应该是 \n 作为结束符的。发送时,也是。 ai2使用 physicaloid 库完成的串口功能。
https://www.tsingfun.com/it/tech/1368.html 

转:postfix安装Q&A - 更多技术 - 清泛网 - 专注C/C++及内核技术

...org/forum/archive/2/0510/563.html)。现在把我安装过程中遇到的问题及解决方法提供给大家,以方便新手。高手就不要看了 说明一下:Q代表安装过程中遇到的问题,或者是日志中出现的现象。A:代表解决方法。 在这里要感谢...