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Web API 最佳入门指南 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...时服务，例如股票，聊天室，在线游戏等实时性要求比较高的服务。
为什么要用 Web API
Web API最重要的是可以构建面向各种客户端的服务。另外与WCF REST Service不同在于，Web API利用Http协议的各个方面来表达服务(例如 URI/request r...
你真的了解熊市有多么可怕吗？ - 创意 - 清泛网 - 专注C/C++及内核技术
...巫见大巫了。大盘反弹在1700点后，横了一个月，一个冲高的假突破后，大盘再次杀跌，当时没有人再敢抄底了，因为谁也不敢想底在哪里，十几天下来，大盘已经到了1300，后来大盘出现了又一次的反弹，最后进入了最恐怖的阴...
Run an untrusted C program in a sandbox in Linux that prevents it from opening files, forking, etc.?
...rotect against memory overuse and any fork bombs, as well as put a stop to CPU hogs. nice(1) can lower the priority of those programs so that the computer can be used for any tasks that are deemed more important with no problem.
...
Command to get time in milliseconds
...ime.
$ time date +%s%N
1597103627N
date +%s%N 0.00s user 0.00s system 63% cpu 0.006 total
Python is still improving it's VM start time, and it is not as fast as ahead-of-time compiled code (such as date).
On my machine, it took about 30ms - 60ms (that is 5x-10x of 6ms taken by date)
$ time python ...
How do emulators work and how are they written? [closed]
... the NES, you have the PPU (pixel processing unit) which requires that the CPU put pixels into its memory at precise moments. If you use interpretation, you can easily count cycles and emulate proper timing; with dynamic/static recompilation, things are a /lot/ more complex.
Interrupt handling:
Int...
What Every Programmer Should Know About Memory?
...emember Drepper's content describes fundamental concepts about memory: how CPU cache works, what are physical and virtual memory and how Linux kernel deals that zoo. Probably there are outdated API references in some examples, but it doesn't matter; that won't affect the relevance of the fundamental...
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...
System.BadImageFormatException: Could not load file or assembly [duplicate]
...e in Visual Studio(compiler settings) the target from “X86 ” to “Any CPU”.
– Tim Schmelter
Oct 25 '12 at 15:07
...
Why wasn't PyPy included in standard Python?
...tten in C, which is traditionally the way Python applications have handled CPU-intensive tasks (see for instance the SciPy project).
The PyPy JIT compilation step itself costs CPU time -- it's only through repeated running of compiled code that it becomes faster overall. This means startup times ca...
What is the difference between a thread and a fiber?
.... This also means that the operating system can take advantage of multiple CPUs and CPU cores by running more than one thread at the same time and leaving it up to the developer to guard data access.
With fibers: the current execution path is only interrupted when the fiber yields execution (same n...