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How to create a CPU spike with a bash command
...irtual cores). You'll also want to stress the virtual ones for a full load test.
– Mast
May 21 '15 at 11:53
6
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Printing a variable memory address in swift
...s is not available on all types, here another example with a CInt
var testNumber : CInt = 289
takesInt(&testNumber)
Where takesInt is a C helper function like this
void takesInt(int *intptr)
{
printf("%p", intptr);
}
On the Swift side, this function is takesInt(intptr: CMutable...
How to simulate a touch event in Android?
...N_UP). I am not sure if it will still work if both are the same. You could test it and post your results.
– azdev
Oct 7 '14 at 19:44
...
Javascript calculate the day of the year (1 - 366)
...r. The above solution is better and is faster. Here is a variation of it I tested on jsPerf jsperf.com/date-getdayofyear-perf
– Shyam Habarakada
Dec 11 '14 at 18:39
...
Count how many records are in a CSV Python?
...
2018-10-29 EDIT
Thank you for the comments.
I tested several kinds of code to get the number of lines in a csv file in terms of speed. The best method is below.
with open(filename) as f:
sum(1 for line in f)
Here is the code tested.
import timeit
import csv
import p...
What is the difference between re.search and re.match?
...regular expression but your example seems wrong according to a performance test: stackoverflow.com/questions/180986/…
– baptx
Jan 21 '19 at 18:56
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Python list subtraction operation
...al work). You'd need to either do yset = set(y) outside the listcomp, then test if item not in yset, or as an egregious hack, do [item for yset in [set(y)] for item in x if item not in yset] which abuses nested listcomps to cache the yset as a one-liner. A slightly less ugly one-liner solution that ...
Is MATLAB OOP slow or am I doing something wrong?
...ime. The chart above reflects the times typical of the preponderance of my tests over time.
Update: R2011b
EDIT (2/13/2012): R2011b is out, and the performance picture has changed enough to update this.
Arch: PCWIN Release: 2011b
Machine: R2011b, Windows XP, 8x Core i7-2600 @ 3.40GHz, 3 GB RA...
How to switch position of two items in a Python list?
...
you can use for example:
>>> test_list = ['title', 'email', 'password2', 'password1', 'first_name',
'last_name', 'next', 'newsletter']
>>> reorder_func = lambda x: x.insert(x.index('password2'), x.pop(x.index('password2')+1))
&...
Which HTML elements can receive focus?
...esn't do anything useful). Other embedding elements also, maybe, I haven't tested them all.
Any element with a tabindex
There are likely to be other subtle exceptions and additions to this behaviour depending on browser.
sh...