[swift-evolution] Swift Performance (JSON parsing, for example)

Joe Groff jgroff at apple.com
Fri Feb 19 15:23:22 CST 2016

> On Feb 19, 2016, at 1:22 PM, Joe Groff via swift-evolution <swift-evolution at swift.org> wrote:
>> On Feb 19, 2016, at 1:19 PM, Vanderlei Martinelli via swift-evolution <swift-evolution at swift.org <mailto:swift-evolution at swift.org>> wrote:
>> Hello.
>> This is not a request for change in the syntax and I don't if this is the appropriate place, but for many Swift programmers experience and my own experience, some things in Swift are very, very slow than  Objective-C and other languages. One of these things is parsing JSON data using dictionaries/arrays (using Swift native types or NSDictionary, the result is near the same).
>> You can read more info in articles like this one: https://blog.sudeium.com/2014/12/10/swift-performance-too-slow-for-production/ <https://blog.sudeium.com/2014/12/10/swift-performance-too-slow-for-production/>
> That particular article is almost a year old. We looked at this very workload and improved its performance significantly in Swift 1.2.

See their followup here: https://blog.sudeium.com/2015/02/10/swift-1-dot-2-performance-pretty-much-fine/


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