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Using current time in UTC as default value in PostgreSQL
...000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 47.1084 7.58816C47.4091 7.46349 47.7169 7.36433 48.0099 7.26993C48.9099 6.97997 49.672 6.73443 49.672 5.93063C49.672 5.22043 48.9832 4.61182 48.1414 4.61182C47.4335 4.61182 46.7256 4.91628 46.0943 5.50789C45.7307 4.9328 4...
How to get line count of a large file cheaply in Python?
...simplecount : 0.634400033951
bufcount : 0.468800067902
opcount : 0.602999973297
So the buffer read strategy seems to be the fastest for Windows/Python 2.6
Here is the code:
from __future__ import with_statement
import time
import mmap
import random
from collections import defaultdict
def mapcou...
numpy: most efficient frequency counts for unique values in an array
In numpy / scipy , is there an efficient way to get frequency counts for unique values in an array?
16 Answers
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Java: How to Indent XML Generated by Transformer
I'm using Java's built in XML transformer to take a DOM document and print out the resulting XML. The problem is that it isn't indenting the text at all despite having set the parameter "indent" explicitly.
...
How to apply bindValue method in LIMIT clause?
...)
– Madara's Ghost
Nov 15 '12 at 19:32
4
@Ross I cannot specifically answer this- but I can point...
How to reuse an ostringstream?
...000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 47.1084 7.58816C47.4091 7.46349 47.7169 7.36433 48.0099 7.26993C48.9099 6.97997 49.672 6.73443 49.672 5.93063C49.672 5.22043 48.9832 4.61182 48.1414 4.61182C47.4335 4.61182 46.7256 4.91628 46.0943 5.50789C45.7307 4.9328 4...
Why would introducing useless MOV instructions speed up a tight loop in x86_64 assembly?
...n. To find out how memory stores work, please refer to the Intel 64 and IA-32 Architectures Optimization Reference Manual.
Breaking the false dependencies
Although this does not exactly refer to your case, but sometimes using 32-bit mov operations under the 64-bit processor (as in your case) are u...
Understand the “Decorator Pattern” with a real world example
...ty wiki
14 revs, 5 users 88%this. __curious_geek
106
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Why is GHC so large/big?
...owSimon Marlow
12.5k33 gold badges3939 silver badges3232 bronze badges
16
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Alternatives to gprof [closed]
...d by .. There are performance problems vWxYz taking 1/2, 1/4, 1/8, 1/16, 1/32 of the time, respectively. Sampling finds v easily. It is removed, leaving
xWzWxWYWxW.WxWYW
Now the program takes half as long to run, and now W takes half the time, and is found easily. It is removed, leaving
xzxYx.xY
Thi...