micro-optimization

146 Questions
Newest Active Unanswered Frequent
Score
View
Card Compact
4-way bytewise interleave 4x 16-byte vectors from memory, with AVX512
user_100905580
•
3
1
403
avx512 x86-64 micro-optimization x86
Insert a bit in a byte at pos n with Assembly
user_92040050
•
3
2
155
cortex-m arm micro-optimization assembly
Why did Intel remove the 16-byte branch target alignment Coding Rule from the Optimization Reference Manual?
user_46035070
•
2
0
131
micro-architecture x86-64 micro-optimization intel x86
When to use a certain calling convention
user_6511740
•
2
1
439
x86-64 calling-convention micro-optimization x86 assembly
For loop performance: counters with same value vs. different values
user_8866970
•
9
1
126
micro-optimization for-loop optimization java
Convert __m256i register to uint64_t bitmask such that that value at each byte's value is a set bit in the output
user_113221310
•
4
1
643
avx avx2 micro-optimization simd c++
On intel x86_64 understanding when to partition memory that will be accessed by multiple threads by 128 vs 64 bytes
user_113221310
•
2
0
87
x86-64 micro-optimization memory-alignment c++ performance
Why does GCC chose dword movl to copy a long shift count to CL?
user_141382830
•
2
2
150
x86-64 micro-optimization assembly gcc
Checking if a uint8_t[8] contains any non 0s and accessing a non-zero slot with one memory load
user_113221310
•
2
1
151
x86-64 micro-optimization bit-manipulation assembly c++
optimizing percpu 2 level bit vector in restartable sequence on x86-64, skylake
user_113221310
•
2
0
127
x86-64 micro-optimization assembly linux-kernel c
Hot Questions