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Why is there huge performance hit in 2048x2048 versus 2047x2047 array multiplication?
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This may have to do with the size of your cpu cache. If 2 rows of the matrix matrix do not fit, then you will loose time swapping in elements from RAM. The extra 4095 elements may just be enough to prevent rows from fitting.
In your case, 2 rows for 2047 2d matrices...
What is stability in sorting algorithms and why is it important?
...need stability, it's more complicated. Stable algorithms have higher big-O CPU and/or memory usage than unstable algorithms. So when you have a large data set, you have to pick between beating up the CPU or the memory. If you're constrained on both CPU and memory, you have a problem. A good compromi...
Port 80 is being used by SYSTEM (PID 4), what is that?
...iguration Manager" for, let's say, port 82 :-)
– François Breton
Nov 17 '16 at 3:21
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How to concatenate a std::string and an int?
...ed May 16 '19 at 16:40
Jean-François Fabre♦
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answered Oct 10 '08 at 15:09
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How to disable HTML button using JavaScript?
...#btnPlaceOrder').prop('disabled',false);
– Dominik Späte
Aug 10 '17 at 12:57
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How can I reorder my divs using only CSS?
Given a template where the HTML cannot be modified because of other requirements, how is it possible to display (rearrange) a div above another div when they are not in that order in the HTML? Both div s contain data that varies in height and width.
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How to kill a process running on particular port in Linux?
...ilegues to get process names via netstat.
– Jonas Schäfer
Jul 20 '12 at 16:46
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@JonasWielicki y...
How do I wrap text in a pre tag?
... edited Jul 2 at 13:04
Jean-François Fabre♦
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answered Sep 1 '18 at 17:22
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Is there an SQLite equivalent to MySQL's DESCRIBE [table]?
...ed Apr 21 '19 at 17:20
Jean-François Fabre♦
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answered Feb 14 '15 at 15:26
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The “unexpected ++” error in jslint [duplicate]
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@FrançoisWahl Thanks for the Crockford explaination
– Matt Clarkson
Mar 28 '13 at 12:03
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