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How to pull request a wiki page on GitHub?
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123
GitHub doesn't support pull requests for the wiki repository, only the main repository (this i...
What is the most robust way to force a UIView to redraw?
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194
The guaranteed, rock solid way to force a UIView to re-render is [myView setNeedsDisplay]. If ...
Most efficient way to reverse a numpy array
... something like this:
arr = np.array(some_sequence)
reversed_arr = arr[::-1]
do_something(arr)
look_at(reversed_arr)
do_something_else(arr)
look_at(reversed_arr)
I'm not a numpy expert, but this seems like it would be the fastest way to do things in numpy. If this is what you are already doing,...
How do you install Google frameworks (Play, Accounts, etc.) on a Genymotion virtual device? [duplica
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10 Answers
10
Active
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Context switches much slower in new linux kernels
We are looking to upgrade the OS on our servers from Ubuntu 10.04 LTS to Ubuntu 12.04 LTS. Unfortunately, it seems that the latency to run a thread that has become runnable has significantly increased from the 2.6 kernel to the 3.2 kernel. In fact the latency numbers we are getting are hard to belie...
Why are iframes considered dangerous and a security risk?
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answered Sep 2 '11 at 21:01
Diodeus - James MacFarlaneDiodeus - James MacFarlane
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Are tuples more efficient than lists in Python?
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180
The dis module disassembles the byte code for a function and is useful to see the difference b...
How to merge lists into a list of tuples?
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In Python 2:
>>> list_a = [1, 2, 3, 4]
>>> list_b = [5, 6, 7, 8]
>>> zip(list_a, list_b)
[(1, 5), (2, 6), (3, 7), (4, 8)]
In Python 3:
>>> list_a = [1, 2, 3, 4]
>>> list_b = [5, 6, 7, 8]
>>> list(zip(list...
Difference between char* and const char*?
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417
char* is a mutable pointer to a mutable character/string.
const char* is a mutable pointer to ...