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Why is there huge performance hit in 2048x2048 versus 2047x2047 array multiplication?
... 2 for the problematic matrix sizes? I am no expert on caching issues, but excellent info on cache related performance issues here.
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Is memcached a dinosaur in comparison to Redis? [closed]
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Memcache is an excellent tool still and VERY reliable.
instead of looking at this issue from the perspective getting down the who is faster at the < 100 ms range, look at the performance per "class" of the software.
Does it use only l...
How to implement classic sorting algorithms in modern C++?
...ally chosen input data. When a stable sort is not needed, quick sort is an excellent general-purpose sort.
Even for the simplest versions, quick sort is quite a bit more complicated to implement using the Standard Library than the other classic sorting algorithms. The approach below uses a few ite...
Why are ToLookup and GroupBy different?
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@Will: You make an excellent point; the documentation does not guarantee that ToLookup is "eager". It probably should note that.
– Eric Lippert
Apr 18 '12 at 20:20
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Test a weekly cron job [closed]
...tell you whether the script will actually work when run from cron. Use the excellent crontest script in one of the other answers to this question.
– andynormancx
Apr 24 '16 at 14:38
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How to implement Enums in Ruby?
...uage. :-) If that's not what you're looking for, there are dozens of other excellent languages out there, each of which makes different tradeoffs.
– emk
Mar 10 '10 at 17:51
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Can someone explain Microsoft Unity?
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This guy WilcoxTutorials gives an excellent demonstration of the Unity container that is aimed at beginners.
Part 1: http://www.youtube.com/watch?v=CWwe9Z0Gyew
Part 2: http://www.youtube.com/watch?v=PsIbevgzQQE
In less than half an hour and you will unders...
printf with std::string?
...tring. For that reason your code prints out gibberish.
While printf is an excellent choice for printing out formatted text, (especially if you intend to have padding), it can be dangerous if you haven't enabled compiler warnings. Always enable warnings because then mistakes like this are easily avo...
ruby system command check exit code
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Another excellent comparison of system, backticks, %x, and exec provided here: stackoverflow.com/questions/6338908/…
– Tom Harrison
Mar 19 '15 at 12:45
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Seedable JavaScript random number generator
... Twister. It is a well tested and fairly robust RNG with a huge orbit and excellent performance.
EDIT: I really should be correct and refer to this as a Pseudo Random Number Generator or PRNG.
"Anyone who uses arithmetic methods to produce random numbers is in a state of sin."
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