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New posts in micro-optimization

What is the fastest way to subtract two arrays in scala

scala micro-optimization scala-2.9

Should one use `if ($a != NULL)` or `if ($a !== NULL)` to control program flow?

php performance if-statement micro-optimization program-flow

Why does .NET Native compile loop in reverse order?

c# assembly x86 micro-optimization .net-native

GEMM kernel implemented using AVX2 is faster than AVX2/FMA on a Zen 2 CPU

assembly matrix-multiplication simd avx micro-optimization

How do I optimize a loop which can be fully strict

performance haskell micro-optimization

Threshold an absolute value

c++ c language-lawyer undefined-behavior micro-optimization

Why is strtolower slightly slower than strtoupper?

php c performance micro-optimization

java micro-optimization: combine set of boolean instance variables to bit vector based on int

java boolean micro-optimization bitvector

In Java, should Integer object be preferred over int primitive (same for other numeric types)?

java performance micro-optimization

C++ fixed size arrays vs multiple objects of same type

c++ c micro-optimization

is i=(i+1)&3 faster than i=(i+1)%4

c++ micro-optimization

What is faster in Python, "while" or "for xrange"

python micro-optimization

Is x >= 0 more efficient than x > -1?

c++ optimization micro-optimization

How to improve performance on a function that operates on two arrays in clojure

clojure micro-optimization mathematical-optimization

Why move 32-bit register to stack then from stack to xmm register?

assembly x86 sse att micro-optimization

Weird performance effects from nearby dependent stores in a pointer-chasing loop on IvyBridge. Adding an extra load speeds it up?

assembly x86 micro-optimization microbenchmark micro-architecture

Ever any performance different between Java >> and >>> right shift operators?

java performance bit-shift micro-optimization

Why does the compiler not always optimize away local variables?

c++ gcc compiler-optimization micro-optimization

Non-virtual interface? (Need a very performant low level abstraction)

c++ architecture abstraction idioms micro-optimization

Is it useful to check if a Java collection is empty before beginning iteration?

java collections garbage-collection iteration micro-optimization
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