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Why would introducing useless MOV instructions speed up a tight loop in x86_64 assembly?
... mispredictions affect performance, take a look at this excellent answer: https://stackoverflow.com/a/11227902/1001643
Compilers typically don't have enough information to know which branches will alias and whether those aliases will be significant. However, that information can be determined at ...
What exactly is Python multiprocessing Module's .join() Method Doing?
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gitignore all files of extension in directory
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How does the extend() function work in jQuery?
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Easy idiomatic way to define Ordering for a simple case class
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What is the difference between quiet NaN and signaling NaN?
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How can I select rows with most recent timestamp for each key value?
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What is the purpose of std::make_pair vs the constructor of std::pair?
..._iterator.
See also:
Why not infer template parameter from constructor?
https://en.wikibooks.org/wiki/More_C++_Idioms/Object_Generator
Minimal example
To make things more concrete, we can observe the problem minimally with:
main.cpp
template <class MyType>
struct MyClass {
MyType i...
warning about too many open figures
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In log4j, does checking isDebugEnabled before logging improve performance?
...ava 8, you don't have to use isDebugEnabled() to improve the performance.
https://logging.apache.org/log4j/2.0/manual/api.html#Java_8_lambda_support_for_lazy_logging
import java.util.logging.Logger;
...
Logger.getLogger("hello").info(() -> "Hello " + name);
...