micro-optimization

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ADD vs OR vs XOR to calculate an index
user_76108830
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2
1
197
x86-64 micro-optimization x86 c++
Set EDX to 0 or -1 according to an EAX >= 0 condition?
Admin1
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2
1
148
x86-64 micro-optimization assembly
Does optimizing an algorithm from O(2N) down to O(N) make it twice as fast?
user_142252320
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2
1
415
space-complexity micro-optimization big-o time-complexity optimization
Search of interval optimization
user_155004860
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2
1
111
micro-optimization optimization python
Access of struct member faster if located <128 bytes from start?
user_23695970
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4
1
110
micro-optimization x86 assembly
Count integers in [1..N] with K zero bits below the leading 1? (popcount for a contiguous range without HW POPCNT)
user_132936140
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2
2
560
hammingweight nasm micro-optimization x86 optimization
Should I inline operators == and != in case when operator!=() uses negation of operator==()
user_37462280
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3
2
202
micro-optimization c++
Why am I seeing more RFO (Read For Ownership) requests using REP MOVSB than with vmovdqa
user_113221310
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6
0
450
memcpy x86-64 micro-optimization intel cpu-architecture
When does Common subexpression elimination apply?
user_83115670
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2
0
92
compiler-optimization microbenchmark micro-optimization optimization java
Why can't GCC generate an optimal operator== for a struct of two int32s?
user_8746600
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87
3
4832
compiler-optimization x86-64 micro-optimization gcc c++
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