Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > comp.lang.python > #72506

Re: Benefits of asyncio

Show all headers | View raw

Chris Angelico <rosuav@gmail.com>:

> your throughput is defined by your database.

Asyncio is not (primarily) a throughput-optimization method. Sometimes
it is a resource consumption optimization method as the context objects
are lighter-weight than full-blown threads.

Mostly asyncio is a way to deal with anything you throw at it. What do
you do if you need to exit the application immediately and your threads
are stuck in a 2-minute timeout? With asyncio, you have full control of
the situation.

> It's the same with all sorts of other resources. What happens if your
> error logging blocks? Do you code everything, *absolutely everything*,
> around callbacks? Because ultimately, it adds piles and piles of
> complexity and inefficiency, and it still comes back to the same
> thing: stuff can make other stuff wait.

It would be interesting to have an OS or a programming language where no
function returns a value. Linux, in particular, suffers from the
deeply-ingrained system assumption that all file access is synchronous.

However, your protestations seem like a straw man to me. I have really
been practicing event-driven programming for decades. It is fraught with
frustrating complications but they feel like fresh air compared with the
what-now moments I've had to deal with doing multithreaded programming.


Marko

Back to comp.lang.python | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

Benefits of asyncio Aseem Bansal <asmbansal2@gmail.com> - 2014-06-02 10:40 -0700
  Re: Benefits of asyncio Ian Kelly <ian.g.kelly@gmail.com> - 2014-06-02 12:37 -0600
  Re: Benefits of asyncio Terry Reedy <tjreedy@udel.edu> - 2014-06-02 16:07 -0400
    Re: Benefits of asyncio Roy Smith <roy@panix.com> - 2014-06-02 16:19 -0400
    Re: Benefits of asyncio Marko Rauhamaa <marko@pacujo.net> - 2014-06-02 23:28 +0300
      Re: Benefits of asyncio Paul Rubin <no.email@nospam.invalid> - 2014-06-02 13:45 -0700
        Re: Benefits of asyncio Chris Angelico <rosuav@gmail.com> - 2014-06-03 07:49 +1000
        Re: Benefits of asyncio Terry Reedy <tjreedy@udel.edu> - 2014-06-02 21:51 -0400
        Re: Benefits of asyncio Marko Rauhamaa <marko@pacujo.net> - 2014-06-03 09:36 +0300
          Re: Benefits of asyncio Chris Angelico <rosuav@gmail.com> - 2014-06-03 18:47 +1000
            Re: Benefits of asyncio Marko Rauhamaa <marko@pacujo.net> - 2014-06-03 12:10 +0300
              Re: Benefits of asyncio Chris Angelico <rosuav@gmail.com> - 2014-06-03 19:30 +1000
                Re: Benefits of asyncio Marko Rauhamaa <marko@pacujo.net> - 2014-06-03 13:08 +0300
                Re: Benefits of asyncio Chris Angelico <rosuav@gmail.com> - 2014-06-03 20:23 +1000
                Re: Benefits of asyncio Marko Rauhamaa <marko@pacujo.net> - 2014-06-03 14:12 +0300
                Re: Benefits of asyncio Paul Rubin <no.email@nospam.invalid> - 2014-06-04 00:52 -0700
              Re: Benefits of asyncio Burak Arslan <burak.arslan@arskom.com.tr> - 2014-06-03 14:05 +0300
              Re: Benefits of asyncio Chris Angelico <rosuav@gmail.com> - 2014-06-03 21:57 +1000
              Re: Benefits of asyncio Burak Arslan <burak.arslan@arskom.com.tr> - 2014-06-04 08:10 +0300
              Re: Benefits of asyncio Chris Angelico <rosuav@gmail.com> - 2014-06-04 17:30 +1000
              Re: Benefits of asyncio Paul Rubin <no.email@nospam.invalid> - 2014-06-04 00:48 -0700
          Re: Benefits of asyncio "Frank Millman" <frank@chagford.com> - 2014-06-03 13:09 +0200
          Re: Benefits of asyncio Chris Angelico <rosuav@gmail.com> - 2014-06-03 22:01 +1000
            Re: Benefits of asyncio Marko Rauhamaa <marko@pacujo.net> - 2014-06-03 16:05 +0300
              Re: Benefits of asyncio Chris Angelico <rosuav@gmail.com> - 2014-06-03 23:31 +1000
                Re: Benefits of asyncio Marko Rauhamaa <marko@pacujo.net> - 2014-06-03 16:42 +0300
                Re: Benefits of asyncio Chris Angelico <rosuav@gmail.com> - 2014-06-03 23:49 +1000
                Re: Benefits of asyncio Marko Rauhamaa <marko@pacujo.net> - 2014-06-03 19:18 +0300
              Re: Benefits of asyncio Roy Smith <roy@panix.com> - 2014-06-03 11:40 -0400
        Re: Benefits of asyncio Paul Sokolovsky <pmiscml@gmail.com> - 2014-06-03 11:31 +0300
  Re: Benefits of asyncio Burak Arslan <burak.arslan@arskom.com.tr> - 2014-06-03 00:07 +0300
  Re: Benefits of asyncio Aseem Bansal <asmbansal2@gmail.com> - 2014-06-02 21:54 -0700

csiph-web