[swift-users] Good things are coming soon in Swift 2.2

Joe Groff jgroff at apple.com
Tue Feb 2 13:54:31 CST 2016

> On Feb 2, 2016, at 11:10 AM, David Turnbull via swift-users <swift-users at swift.org> wrote:
> On the swift-dev list they announced the 2.2 branch is now under restrictive change control. If you're been putting off checking it out, I'd suggest the next snapshot is worth a look.
> I did some benchmarks on the last snapshot using a Parks-McClellan filter design algorithm. The algorithm is heavy on floating point arithmetic with a little trig while iterating over arrays.
>          C:   2.07ms
>  Swift 2.2:   2.10ms
>  Swift 2.1:   2.70ms
>   Go 1.5.2:   2.93ms
> Ruby 2.0.0:  85.50ms
> Math performance is important to my plans for Swift, so this makes me happy. Ruby and Go haven't improved on this benchmark in two years.
> The Parks-McClellan filter design algorithm is hosted here:
> https://github.com/AE9RB/firpm <https://github.com/AE9RB/firpm>

Nice to hear!

> Unfortunately, compile times are longer in 2.2. But one day we'll have it all.

You might want to file a bug so we can investigate the build time regression. Erik's been working on some infrastructure improvements to make whole-module builds more parallel, so if you want to live on the bleeding edge, you might give the 3.0 snapshots a try and see if build time is more survivable.


> -david  https://github.com/AE9RB/SwiftGL <https://github.com/AE9RB/SwiftGL>_______________________________________________
> swift-users mailing list
> swift-users at swift.org
> https://lists.swift.org/mailman/listinfo/swift-users

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