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Why is iterating through a large Django QuerySet consuming massive amounts of memory?
...te C was close, but not quite.
From the docs:
You can evaluate a QuerySet in the following ways:
Iteration. A QuerySet is iterable, and it executes its database query the first time you iterate over it. For example, this will print the headline of all entries in the database:
for e in ...
Is there any significant difference between using if/else and switch-case in C#?
What is the benefit/downside to using a switch statement vs. an if/else in C#. I can't imagine there being that big of a difference, other than maybe the look of your code.
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Quick search on filename
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Do you have to include ?
... or if you don't have the favicon.ico in root folder but in e.g. a assets folder
– Upvote
Feb 27 '14 at 11:59
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Initializing a struct to 0
...t(involves less typing), and it is guaranteed to work, all members will be set to 0[Ref 1].
The second is more readable.
The choice depends on user preference or the one which your coding standard mandates.
[Ref 1] Reference C99 Standard 6.7.8.21:
If there are fewer initializers in a ...
How to check if an object is a list or tuple (but not string)?
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There are lots of things you can iterate like lists, eg set, generator expressions, iterators. There are exotic things like mmap, less exotic things like array which act pretty much like lists, and probably lots more I've forgotten.
– Nick Craig-Wood
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Scaling Node.js
... redis when used with hiredis.
PING: 20000 ops 46189.38 ops/sec 1/4/1.082
SET: 20000 ops 41237.11 ops/sec 0/6/1.210
GET: 20000 ops 39682.54 ops/sec 1/7/1.257
INCR: 20000 ops 40080.16 ops/sec 0/8/1.242
LPUSH: 20000 ops 41152.26 ops/sec 0/3/1.212
LRANGE (10 elements): 20000 ops 36563.07 ops/sec 1/8/1...
Microsoft.Jet.OLEDB.4.0' provider is not registered on the local machine
...ist in ASP.NET,All I had to do was change the "Enable 32-bit Applications" setting to True, in the Advanced Settings for the Application Pool.
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How to delete multiple buffers in Vim?
Assuming I have multiple files opened as buffers in Vim. The files have *.cpp , *.h and some are *.xml . I want to close all the XML files with :bd *.xml . However, Vim does not allow this (E93: More than one match...).
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Convert a byte array to integer in Java and vice versa
...ls the JVM to convert the signed byte into an integer with just those bits set. Otherwise the byte -1 (0xFF) will turn into the int -1 (0xFFFFFFFF). I could be wrong and even if I am it doesn't hurt and makes things clearer.
– coderforlife
Jul 29 '14 at 18:44
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