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Multithreading: What is the point of more threads than cores?
...nterruption. In reality this isn't the case. Even if you have four cores and four working threads, your process and it threads will constantly be being switched out for other processes and threads. If you are running any modern OS, every process has at least one thread, and many have more. All t...
What is the difference between atomic / volatile / synchronized?
...return counter++;
}
It basically reads value from memory, increments it and puts back to memory. This works in single thread but nowadays, in the era of multi-core, multi-CPU, multi-level caches it won't work correctly. First of all it introduces race condition (several threads can read the value...
Sublime text 2 - find and replace globally ( all files and in all directories )
Is there any way to find and replace text string automatically in all folder's files ?
2 Answers
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Linking R and Julia?
Julia looks very promising for fast and syntax-sane computation (e.g. here ), but I suspect it will not be anywhere near R in terms of overall statistics workflow for some time yet. So I'd like to use it where C++ is mainly used in R programs: to optimize slow portions of code. Before I invest th...
List of ANSI color escape sequences
...s a series of semicolon-separated parameters.
To say, make text red, bold, and underlined (we'll discuss many other options below) in C you might write:
printf("\033[31;1;4mHello\033[0m");
In C++ you'd use
std::cout<<"\033[31;1;4mHello\033[0m";
In Python3 you'd use
print("\033[31;1;4mHello\0...
What's the difference between Require.js and simply creating a element in the DOM? [closed]
...e farther from the truth. It definitely has a steep learning curve for you and anyone else who will come to work in that project.
– Sahat Yalkabov
Sep 30 '13 at 3:06
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When to use -retainCount?
I would like to know in what situation did you use -retainCount so far, and eventually the problems that can happen using it.
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How to prevent robots from automatically filling up a form?
...attacks) way of solving anti-spam is tracking the time between form-submit and page-load.
Bots request a page, parse the page and submit the form. This is fast.
Humans type in a URL, load the page, wait before the page is fully loaded, scroll down, read content, decide wether to comment/fill in th...
Differences between hard real-time, soft real-time, and firm real-time?
I have read the definitions for the different notions of real-time , and the examples provided for hard and soft real-time systems make sense to me. But, there is no real explanation or example of a firm real-time system. According to the link above:
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UnboundLocalError on local variable when reassigned after first use
The following code works as expected in both Python 2.5 and 3.0:
12 Answers
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