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Multithreading: What is the point of more threads than cores?
...'s how the system is supposed to work.) Write your multithreaded programs based on the kind of work the threads will do, which may not be CPU-bound. Figure out the number of threads you need based on profiling and measurement. You may find it more useful to think in terms of tasks or jobs, rather...
How much of a git sha is *generally* considered necessary to uniquely identify a change in a given c
...h the default setting and come up with a sane default for the repository. Based on the expectation that we would see collision in a repository with 2^(2N) objects when using object names shortened to first N bits, use sufficient number of hexdigits to cover the number of objects in the repository.
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How is __eq__ handled in Python and in what order?
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base on this answer and accompanied comments , this just left me more confused than before.
– Sajuuk
May 14 '19 at 8:48
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How does LMAX's disruptor pattern work?
...cy.
Compared to SEDA
LMAX built the Disruptor pattern to replace a SEDA based approach.
The main improvement that it provided over SEDA was the ability to do work in parallel. To do this the Disruptor supports multi-casting the same messages (in the same order) to multiple consumers. This avoid...
live output from subprocess command
..., good explanation but it lacks the concrete code examples. Here's asyncio-based code that implements the "hard part" (it handles multiple pipes concurrently) in a portable way. You could compare it to the code that uses multiple threads (teed_call()) to do the same.
– jfs
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How should you build your database from source control?
There has been some discussion on the SO community wiki about whether database objects should be version controlled. However, I haven't seen much discussion about the best-practices for creating a build-automation process for database objects.
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Differences between Perl and PHP [closed]
...ve subscripts in PHP are subscripts like any other.
In Perl 5, classes are based on packages and look nothing like classes in PHP (or most other languages). Perl 6 classes are closer to PHP classes, but still quite different. (Perl 6 is different from Perl 5 in many other ways, but that's off topic....
How to implement has_many :through relationships with Mongoid and mongodb?
...nship have hunders|thousands of records) because it gets the data from database, build each record, generates the original array and then iterates over the original array to build a new one with the values from the given block.
Using pluck is faster and maybe the fastest option.
class Physician
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How to create a custom attribute in C#
...ld be interested in the attributes you use, read them, and perform actions based on them. A typical example is a validation library, as @BrunoBrant mentioned.
– romar
May 10 '13 at 18:26
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.NET Global exception handler in console application
...ame "game" he does, only in a worse way because it's pure retaliation, not based on the quality of an answer. That's not a way to solve the problem, only make it worse. It's especially bad when you retaliate against someone who even had a legitimate concern about your answer (as I have demonstrate...