[go-nuts] Re: [ANN] fixed point math library

[Liam]

This made the front page of Hacker News

https://news.ycombinator.com/item?id=18559625


On Wednesday, November 28, 2018 at 10:47:37 PM UTC-8, robert engels wrote:
>
> For those interesting in financial apps, I have released ‘fixed' at 
> https://github.com/robaho/fixed a high performance fixed-point math 
> library primarily designed for to work with currencies.
>
> The benchmarks: (Decimal is the shopspring library, big Int/Float are the 
> stdlib)
>
> BenchmarkAddFixed-8           2000000000               0.83 ns/op            
> 0 B/op          0 allocs/op
> BenchmarkAddDecimal-8          3000000               457 ns/op             
> 400 B/op         10 allocs/op
> BenchmarkAddBigInt-8          100000000               19.2 ns/op             
> 0 B/op          0 allocs/op
> BenchmarkAddBigFloat-8        20000000               110 ns/op              
> 48 B/op          1 allocs/op
> BenchmarkMulFixed-8           100000000               12.4 ns/op             
> 0 B/op          0 allocs/op
> BenchmarkMulDecimal-8         20000000                94.2 ns/op            
> 80 B/op          2 allocs/op
> BenchmarkMulBigInt-8          100000000               22.0 ns/op             
> 0 B/op          0 allocs/op
> BenchmarkMulBigFloat-8        30000000                50.0 ns/op             
> 0 B/op          0 allocs/op
> BenchmarkDivFixed-8           100000000               19.3 ns/op             
> 0 B/op          0 allocs/op
> BenchmarkDivDecimal-8          1000000              1152 ns/op             
> 928 B/op         22 allocs/op
> BenchmarkDivBigInt-8          20000000                68.4 ns/op            
> 48 B/op          1 allocs/op
> BenchmarkDivBigFloat-8        10000000               151 ns/op              
> 64 B/op          2 allocs/op
> BenchmarkCmpFixed-8           2000000000               0.28 ns/op            
> 0 B/op          0 allocs/op
> BenchmarkCmpDecimal-8         100000000               10.8 ns/op             
> 0 B/op          0 allocs/op
> BenchmarkCmpBigInt-8          200000000                8.37 ns/op            
> 0 B/op          0 allocs/op
> BenchmarkCmpBigFloat-8        200000000                7.74 ns/op            
> 0 B/op          0 allocs/op
> BenchmarkStringFixed-8        20000000                99.0 ns/op            
> 16 B/op          1 allocs/op
> BenchmarkStringDecimal-8       5000000               326 ns/op             
> 144 B/op          5 allocs/op
> BenchmarkStringBigInt-8       10000000               209 ns/op              
> 80 B/op          3 allocs/op
> BenchmarkStringBigFloat-8      3000000               571 ns/op             
> 272 B/op          8 allocs/op
>
>
>

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