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Is non-blocking I/O really faster than multi-threaded blocking I/O? How?

...antage of nonblocking or asynchronous I/O is that your thread can continue its work in parallel. Of course you can achieve this also using an additional thread. As you stated for best overall (system) performance I guess it would be better to use asynchronous I/O and not multiple threads (so reducin...
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ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock'

... I once had this problem and solved it by installing mysql-server, so make sure that you have installed the mysql-server, not the mysql-client or something else. That error means the file /var/run/mysqld/mysqld.sock doesn't exists, if you didn't install mysql-...
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C++ catching all exceptions

... // ... } catch (...) { // ... } will catch all C++ exceptions, but it should be considered bad design. You can use c++11's new current_exception mechanism, but if you don't have the ability to use c++11 (legacy code systems requiring a rewrite), then you have no named exception pointer to u...
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Xcode 6 iPhone Simulator Application Support location

...upport for the iOS 8 iPhone Simulator. Where are my files and Core Data sqlite database being stored? 16 Answers ...
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How to access full source of old commit in BitBucket?

...re out or find the documentation on how to access the source of an old commit in the new Bit Bucket format. Is this even possible anymore? ...
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Performance difference for control structures 'for' and 'foreach' in C#

... code snippet will give better performance? The below code segments were written in C#. 9 Answers ...
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Unit testing with Spring Security

My company has been evaluating Spring MVC to determine if we should use it in one of our next projects. So far I love what I've seen, and right now I'm taking a look at the Spring Security module to determine if it's something we can/should use. ...
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Relative imports in Python 3

... unfortunately, this module needs to be inside the package, and it also needs to be runnable as a script, sometimes. Any idea how I could achieve that? It's quite common to have a layout like this... main.py mypackage/ __init__.py mymodule.py myothermodule.py ...with ...
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How do I import a Swift file from another Swift file?

I simply want to include my Swift class from another file, like its test 13 Answers 13...
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What exactly do “u” and “r” string flags do, and what are raw string literals?

... There's not really any "raw string"; there are raw string literals, which are exactly the string literals marked by an 'r' before the opening quote. A "raw string literal" is a slightly different syntax for a string literal, in which a backslash, \, is taken as meaning "just a backs...