[Python-ideas] How the heck does async/await work in Python 3.5

Tem Pl rtempl31 at gmail.com
Wed Feb 24 09:39:29 EST 2016


Here are some concurrency benchmarks for python vs other languages. 

https://github.com/atemerev/skynet/pull/53

Is there something wrong with this implementation?

"Hope I suck at coroutines, because the results are abysmal.

I get around 63s on my i5 MacBook Air Early 2015. For reference, the go 
version got around 700ms with GOMAXPROCS=4 and 1.7s with GOMAXPROCS=1 on 
this same machine."

On Wednesday, February 24, 2016 at 5:02:16 AM UTC-5, Victor Stinner wrote:
>
> See also Doug Hellmann article on asyncio, from its serie of "Python 3 
> Module of the Week" articles: 
> https://pymotw.com/3/asyncio/index.html 
>
> Victor 
>
> 2016-02-23 22:25 GMT+01:00 Joao S. O. Bueno <jsb... at python.org.br 
> <javascript:>>: 
> > Today I also stumbled on this helpful "essay" from Brett Cannon about 
> > the same subject 
> > 
> > http://www.snarky.ca/how-the-heck-does-async-await-work-in-python-3-5 
> > 
> > On 23 February 2016 at 18:05, Sven R. Kunze <srk... at mail.de 
> <javascript:>> wrote: 
> >> On 20.02.2016 07:53, Christian Gollwitzer wrote: 
> >> 
> >> If you have difficulties wit hthe overall concept, and if you are open 
> to 
> >> discussions in another language, take a look at this video: 
> >> 
> >> 
> https://channel9.msdn.com/Shows/C9-GoingNative/GoingNative-39-await-co-routines 
> >> 
> >> MS has added coroutine support with very similar syntax to VC++ 
> recently, 
> >> and the developer tries to explain it to the "stackful" programmers. 
> >> 
> >> 
> >> Because of this thread, I finally finished an older post collecting 
> valuable 
> >> insights from last year discussions regarding concurrency modules 
> available 
> >> in Python: 
> http://srkunze.blogspot.com/2016/02/concurrency-in-python.html It 
> >> appears to me that it would fit here well. 
> >> 
> >> @python-ideas 
> >> Back then, the old thread ("Concurrency Modules") was like basically 
> meant 
> >> to result in something useful. I hope the post covers the essence of 
> the 
> >> discussion. 
> >> Some even suggested putting the table into the Python docs. I am 
> unaware of 
> >> the formal procedure here but I would be glad if somebody could point 
> be at 
> >> the right direction if that the survey table is wanted in the docs. 
> >> 
> >> Best, 
> >> Sven 
> >> 
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