Server-side is usually UTF-8 (not always), so often you don’t really need 
strings.
As an aside, time measurements are difficult, especially when IO is involved 
there may be thread switches or locks.

I have written some parsers (UTF-8 based) and not yet encountered performance 
problems. (though faster is always better)

Regards,
Rien

Site: http://balancingrock.nl
Blog: http://swiftrien.blogspot.com
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Project: http://swiftfire.nl - A server for websites build in Swift






> On 08 Apr 2017, at 18:19, Proyb P via swift-users <[email protected]> 
> wrote:
> 
> I have found this took about 0.001s to print 256 characters
> Compare to Python took 0.000016s to print 256 characters, see F8 code and 
> have modify to run only one call instead of 1000 iterations.
> https://gist.github.com/anonymous/18e372e8d0173e77b5c405920d4d3080
> 
> As this is frequently use for server-side swift that will definitely affected 
> by expensive call, are there any alternative solution for converting Int to 
> character close to Python timing?
> 
> import Foundation
> var display: String = ""
> 
>     func printTimeElapsedWhenRunningCode(title: String, operation: ()->()) {
>         let startTime = CFAbsoluteTimeGetCurrent()
>         operation()
>         let timeElapsed = CFAbsoluteTimeGetCurrent() - startTime
>         print("Time elapsed for \(title): \(timeElapsed) s")
>     }
> 
>     printTimeElapsedWhenRunningCode(title: "s1()") {
> let startingValue = Int(("A" as UnicodeScalar).value) // 65
> for i in 0 ..< 256 {
>     print(Character(UnicodeScalar(i + startingValue)!))
> }
> }
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