There are syntax errors in your code.
On Tuesday, 17 October 2017 09:13:41 UTC+1, Christian LeMoussel wrote:
>
> I need to calculate 10 millions of sha256 checksums,
>
> Actually I do this :
>
> var bl int
> var pnb = make([]byte, 10)
> var hash = [32]byte
> var sha256Hash string
> var steps = 10000000
>
> startBench := time.Now()
>
> for i := 0; i < steps; i++ {
> bl = 0
> bl += copy(pnb[bl:], "TEST")
> bl += copy(nonce[bl:], fmt.Sprintf("%04x", i))
> bl += copy(pnb[bl:], "00")
> hash = sha256.Sum256(pnb)
> sha256Hash = hex.EncodeToString(hash[:])
> }
>
> elapsedBench := time.Since(startBench)
>
> log.Printf("%d iterations => sha256 took %v", steps, elapsedBench)
>
> Is it possible to improve the speed?
>
> Thank for your help
>
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