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Multithreading: What is the point of more threads than cores?

... The answer revolves around the purpose of threads, which is parallelism: to run several separate lines of execution at once. In an 'ideal' system, you would have one thread executing per core: no interruption. In reality this isn't the case. Even if you have four cores and four workin...
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Xcode debugger doesn't print objects and shows nil, when they aren't

...ation". Here set "Debug". If it was on "Release" that's the matter you saw all nils). share | improve this answer | follow | ...
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How do I prevent the iPhone screen from dimming or turning off while my application is running?

... answered Sep 24 '08 at 6:07 lajoslajos 24.4k1919 gold badges6161 silver badges7474 bronze badges ...
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C: Run a System Command and Get Output? [duplicate]

... Usually, if the command is an external program, you can use the OS to help you here. command > file_output.txt So your C code would be doing something like exec("command > file_output.txt"); Then you can use the file...
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On localhost, how do I pick a free port number?

... bind to a specific port, or bind to port 0, e.g. sock.bind(('', 0)). The OS will then pick an available port for you. You can get the port that was chosen using sock.getsockname()[1], and pass it on to the slaves so that they can connect back. ...
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Changing the browser zoom level

...on-firefox browsers. Though this gives you a zoom effect, it does not actually modify the zoom value at browser level. var currFFZoom = 1; var currIEZoom = 100; $('#plusBtn').on('click',function(){ if ($.browser.mozilla){ var step = 0.02; currFFZoom += ...
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JavaScript unit test tools for TDD

...a for my end-to-end testing? Can Protractor and Karma be used together? pros: Uses node.js, so compatible with Win/OS X/Linux Run tests from a browser or headless with PhantomJS Run on multiple clients at once Option to launch, capture, and automatically shut down browsers Option to run server/cli...
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Why use Ruby instead of Smalltalk? [closed]

...hrough its adolescence. There are a lot of similarities between Ruby and Smalltalk -- maglev is a testament to that. Despite having a more unusual syntax, Smalltalk has all (if not more) of the object-oriented beauty of Ruby. ...
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How to view or edit localStorage

...n tab. In the Storage section expand Local Storage. After that, you'll see all your browser's local storage there. share | improve this answer | follow | ...
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Open soft keyboard programmatically

... I have used the following lines to display the soft keyboard manually inside the onclick event, and the keyboard is visible. InputMethodManager inputMethodManager = (InputMethodManager)getSystemService(Context.INPUT_METHOD_SERVICE); inputMethodManager.toggleSoftInputFromWindow( li...