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Technically, why are processes in Erlang more efficient than OS threads?
...ch OS threads, it takes about 500-1000 nanoseconds, because you're calling down to the kernel. The OS thread scheduler might run in O(log(n)) or O(log(log(n))) time, which will start to be noticeable if you have tens of thousands, or even millions of threads.
Therefore, Erlang processes are faster...
Logging uncaught exceptions in Python
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Hi, How can we write down to file like debug.log this info. i try it to add line logging.basicConfig(level=logging.DEBUG, filename="debug.log", format='%(asctime)s - %(name)s - %(levelname)s - %(message)s') But didn't help.
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Pass an array of integers to ASP.NET Web API?
...der and then provide a default constructor that pushes the type definition down to the base class: public CommaDelimitedArrayModelBinder() : base(typeof(CommaDelimitedArrayModelBinder)) { }.
– sliderhouserules
Jan 11 '16 at 22:49
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0.1 float is greater than 0.1 double. I expected it to be false [duplicate]
...tation of 0.1 in IEEE-754 - there are two. Either rounding the last digit down or up would be valid. This difference can and does actually occur, because x86 does not use 64-bits for its internal floating-point computations; it actually uses 80-bits! This is called double extended-precision.
So,...
Generate GUID in MySQL for existing Data?
... to a MySQL table and I have a column "GUID" that I want to basically fill down all existing rows with new and unique random GUID's.
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jQuery click events firing multiple times
...rite a video poker game in Javascript as a way of getting the basics of it down, and I've run into a problem where the jQuery click event handlers are firing multiple times.
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Remove empty space before cells in UITableView
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Do the cells of the UITableView show on the empty space when you scroll down?
If so, then the problem might be the inset that is added to the UITableView because of the Navigation controller you have in your view.
The inset is added to the table view in order for the content to be placed below t...
How to copy text programmatically in my Android app?
... support library update
As of Android Oreo, the support library only goes down to API 14. Most newer apps probably also have a min API of 14, and thus don't need to worry about the issues with API 11 mentioned in some of the other answers. A lot of the code can be cleaned up. (But see my edit histo...
MySQL Great Circle Distance (Haversine formula)
...n lat/lon so the bounding boxing can help the search instead of slowing it down (the index is already added in the CREATE TABLE query above).
INDEX `lat_lon_idx` (`lat`, `lon`)
Given an old table with only lat/lon coordinates, you can set up a script to update it like this: (php using meekrodb)
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How to terminate a Python script
...tes immediately at the C level and does not perform any of the normal tear-down of the interpreter; for example, hooks registered with the "atexit" module are not executed.
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