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New posts in micro-optimization
time required in java
Feb 27, 2026
java
micro-optimization
How is a critical path formed when there is a data dependency between a loop iterations while a CPU executing instructions?
Feb 26, 2026
performance
assembly
x86-64
cpu-architecture
micro-optimization
Is it still worth using the Quake fast inverse square root algorithm nowadays on x86-64?
Feb 26, 2026
algorithm
optimization
x86-64
micro-optimization
sqrt
Does Rust optimize for loops over calculated ranges?
Feb 23, 2026
optimization
rust
micro-optimization
Should I use a reference?
Feb 21, 2026
c++
performance
micro-optimization
Generate FMOV without inline assembly
Feb 22, 2026
clang
simd
arm64
micro-optimization
sve
Why compiled lambda build over Expression.Call is slightly slower than delegate that should do the same?
Feb 19, 2026
c#
.net
performance
expression-trees
micro-optimization
What is the correct and optimal implementation of atomic_ref and atomic with padding bits?
Feb 19, 2026
c++
x86
c++20
micro-optimization
stdatomic
Micro Optimization of a 4-bucket histogram of a large array or list
Feb 16, 2026
c#
optimization
histogram
simd
micro-optimization
Fast BCD addition
Feb 15, 2026
c
algorithm
bit-manipulation
micro-optimization
bcd
What is the optimal way for reading the contents of a webpage into a string in Java?
Feb 15, 2026
java
string
optimization
inputstream
micro-optimization
Efficient extraction of first/only key in a dictionary
Feb 09, 2026
python
performance
dictionary
optimization
micro-optimization
Is calling `add` on a memory location faster than calling it on a register and then moving the value?
Jan 26, 2026
assembly
x86
x86-64
micro-optimization
Cost of a 64bits jump, always 10-22 cycles the first time?
Jan 02, 2026
x86
x86-64
cpu-architecture
micro-optimization
branch-prediction
Rotating (by 90°) a bit matrix (up to 8x8 bits) within a 64-bit integer
Jan 01, 2026
c++
bit-manipulation
x86-64
avx
micro-optimization
Saturate short (int16) in C++
Dec 30, 2025
c++
compiler-optimization
micro-optimization
What are the pros and cons of int, unsigned int, uint_fastN_t, and int_fastN_t?
Dec 14, 2025
c
performance
integer
micro-optimization
Efficient AVX2 implementation of a 17x17-bit squaring operation with result truncation
Dec 14, 2025
algorithm
assembly
bit-manipulation
micro-optimization
avx2
Adding a byte from memory to the AX register
Dec 12, 2025
assembly
x86-16
masm
micro-optimization
zero-extension
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