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New posts in micro-optimization
Why are bitwise operators slower than multiplication/division/modulo?
Oct 01, 2022
python
optimization
bitwise-operators
micro-optimization
Is thread time spent in synchronization too high?
Sep 05, 2021
c#
multithreading
performance
concurrency
micro-optimization
Does calling the constructor of an empty class actually use any memory?
Oct 29, 2022
c++
templates
metaprogramming
micro-optimization
Faster implementation of Math.round?
Nov 13, 2017
java
math
rounding
micro-optimization
Java: micro-optimizing array manipulation
Dec 21, 2019
java
performance
optimization
neural-network
micro-optimization
Check the existence of a HashMap key
Nov 13, 2022
java
hashmap
micro-optimization
containskey
Extreme optimization of integer binary search
Nov 20, 2018
algorithm
optimization
micro-optimization
Why is `arr.take(idx)` faster than `arr[idx]`
Feb 03, 2020
python
numpy
indexing
micro-optimization
Does Skylake need vzeroupper for turbo clocks to recover after a 512-bit instruction that only reads a ZMM register, writing a k mask?
Oct 25, 2020
assembly
x86
intel
micro-optimization
avx512
What are the costs of failed store-to-load forwarding on x86?
Jun 12, 2022
x86
intel
cpu-architecture
micro-optimization
amd-processor
What's the most efficient way to make bitwise operations in a C array
Oct 26, 2022
c
performance
micro-optimization
SSE micro-optimization instruction order
Feb 20, 2022
c++
optimization
sse
simd
micro-optimization
AND faster than integer modulo operation?
Oct 21, 2022
assembly
arm
cpu-architecture
micro-optimization
LINQ Count() until, is this more efficient?
Apr 01, 2022
c#
performance
linq
ienumerable
micro-optimization
Is it useful to use VZEROUPPER if your program+libraries contain no SSE instructions?
Nov 03, 2022
performance
assembly
x86
avx
micro-optimization
Why does declaring a counter variable outside of a nested function make a loop 5x slower?
Nov 14, 2022
javascript
optimization
micro-optimization
Is vxorps-zeroing on AMD Jaguar/Bulldozer/Zen faster with xmm registers than ymm?
Jan 06, 2022
assembly
x86
avx
micro-optimization
amd-processor
what's the difference between _mm256_lddqu_si256 and _mm256_loadu_si256
Feb 04, 2022
x86
simd
intrinsics
avx
micro-optimization
Inlining of a recursive function
Sep 13, 2022
c++
recursion
compiler-optimization
micro-optimization
inlining
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