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How do I measure separate CPU core usage for a process?
...ike this (on a quad-core processor):
10:54:41 PM CPU %usr %nice %sys %iowait %irq %soft %steal %guest %idle
10:54:42 PM all 8.20 0.12 0.75 0.00 0.00 0.00 0.00 0.00 90.93
10:54:42 PM 0 24.00 0.00 2.00 0.00 0.00 0.00 0.00 0.00 7...
John Carmack's Unusual Fast Inverse Square Root (Quake III)
... // gives initial guess y0
x = *(float*)&i; // convert bits back to float
x = x * (1.5f - xhalf * x * x); // Newton step, repeating increases accuracy
return x;
}
In spite of this, his initial attempt a mathematically 'superior' version of id's sqrt (which came ...
How to convert string to boolean php
How can I convert string to boolean ?
20 Answers
20
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How to Unit test with different settings in Django?
...test_settings.py', add
settings = 'my_project.test_settings' if 'test' in sys.argv else 'my_project.settings'
in your manage.py. This will ensure that when you run python manage.py test you use test_settings only. If you are using some other testing client like pytest, you could as easily add thi...
Filtering Pandas DataFrames on dates
...
pandas will convert any "datetime" string into a datetime object.. so it's correct
– janscas
Mar 16 '18 at 10:04
8
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All combinations of a list of lists
...d by itertools and a reverse version (e.g. create a list, reverse() it and convert back to tuple). Best ask a new question.
– Joachim Wagner
Feb 26 at 11:06
...
How do you run multiple programs in parallel from a bash script?
...d command
3 # output from 3rd command
real 0m3.012s
user 0m0.011s
sys 0m0.008s
The timing shows that the commands were run in parallel (the last command was launched only after the first of the original 3 terminated, but executed very quickly).
The xargs command itself won't return until a...
Difference between Divide and Conquer Algo and Dynamic Programming
...tead of recalculating it.
By the way, dynamic programming doesn't mean to convert a recursive code into an iterative code. You can also save the subresults into a variable if you want a recursive code. In this case the technique is called memoization. For our example it looks like this:
// declare...
Fastest method of screen capturing on Windows
...e source and destination device contexts do not match, the BitBlt function converts the source color format to match the destination format.
– user244343
Mar 4 '11 at 2:08
...
How default .equals and .hashCode will work for my classes?
... distinct integers for distinct objects. (This is typically implemented by converting the internal address of the object into an integer, but this implementation technique is not required by the JavaTM programming language.)
...