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jackmott / LinqFaster

Linq-like extension functions for Arrays, Span<T>, and List<T> that are faster and allocate less.

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Any reason you implement List and Array, why not implement just IList?

friuns2 opened this issue · comments

commented

Array and List both derive from Ilist interface, any reason you don't use IList instead?

commented

I believe there would be a performance hit in some, if not all cases. If you think not, I can do some quick benchmarks to experiment to confirm or deny.

commented

Yeah, comparing Sum using array vs IList:

BenchmarkDotNet=v0.10.3.0, OS=Microsoft Windows NT 6.2.9200.0
Processor=Intel(R) Core(TM) i7-6700 CPU 3.40GHz, ProcessorCount=8
Frequency=3328126 Hz, Resolution=300.4694 ns, Timer=TSC
  [Host]    : Clr 4.0.30319.42000, 64bit RyuJIT-v4.7.2600.0
  RyuJitX64 : Clr 4.0.30319.42000, 64bit RyuJIT-v4.7.2600.0

Job=RyuJitX64  Jit=RyuJit  Platform=X64
Method TEST_SIZE Mean StdDev Allocated
Sum 100000 45.2131 us 0.1464 us 0 B
SumIList 100000 546.2191 us 2.7519 us 0 B