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What is the difference between using IDisposable vs a destructor in C#?
...ent but were abandoned without unsubscribing, that could cause a memory or CPU leak (since the time required to process each subscription would increase).
– supercat
May 18 '15 at 16:35
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Redefining NULL
... work required to avoid dereferencing NULL (assuming that in your case the CPU isn't helping) is the same no matter how NULL is defined, so it's easier to leave NULL defined as zero, and make sure that zero can't ever be dereferenced from C.
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Executing periodic actions in Python [duplicate]
...foo (1421705503.5810)
Note that this example includes a simulation of the cpu doing something else for .3 seconds each period. If you changed it to be random each time it wouldn't matter. The max in the yield line serves to protect sleep from negative numbers in case the function being called takes...
How can you profile a Python script?
... run:
profile euler048.py
And I get this:
1007 function calls in 0.061 CPU seconds
Ordered by: standard name
ncalls tottime percall cumtime percall filename:lineno(function)
1 0.000 0.000 0.061 0.061 <string>:1(<module>)
1000 0.051 0.000 0.051 0.000 ...
When to use enumerateObjectsUsingBlock vs. for
...ly faster, but that doesn't matter much in most cases — few programs are CPU-bound, and even then it's rare that the loop itself rather than the computation inside will be a bottleneck.
A simple loop also reads more clearly. Here's the boilerplate of the two versions:
for (id x in y){
}
[y enum...
Why is the Android emulator so slow? How can we speed up the Android emulator? [closed]
...TANT NOTE: Please first refer to the Intel list about VT to make sure your CPU supports Intel VT.
HAXM Speeds Up the Slow Android Emulator
HAXM stands for - "Intel Hardware Accelerated Execution Manager"
Currently, it supports only Intel® VT (Intel Virtualization Technology).
The Android emulat...
Logging in Scala
...re sent to an actor which calls SLF4J from a dedicated thread pool. Trades CPU time for (much better) latency. github.com/oncue/journal
– Gary Coady
Jul 24 '15 at 12:03
add a ...
What is the relative performance difference of if/else versus switch statement in Java?
...re could be some performance gains, if the code is part of the performance CPU graph.
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Parsing JSON with Unix tools
...f a parser that has to support recursion, and in this case, spends lots of CPU building trees for structures you don't care about. (If someone wrote a finite state transducer that did proper (depth-limited) JSON parsing, that would be fantastic! In the meantime we have "grep -o".)
To write maint...
UIView Infinite 360 degree rotation animation?
...n the animation at each PI/2 angle (90 degrees) and a marginal increase in CPU usage over the chosen answer using CABasicAnimation. The CABasicAnimation method produces a flawlessly smooth animation.
– Arjun Mehta
Feb 28 '14 at 18:59
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