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

Groups > comp.lang.python > #45588

Re: Please help with Threading

References <7baacf5a-0c50-4935-ad5b-148c208d759b@googlegroups.com> <13lfp8lds6e2e41rtsnvqimcb6inu7p28o@invalid.netcom.com>
Date 2013-05-20 07:25 +0100
Subject Re: Please help with Threading
From Fábio Santos <fabiosantosart@gmail.com>
Newsgroups comp.lang.python
Message-ID <mailman.1861.1369031126.3114.python-list@python.org> (permalink)

Show all headers | View raw

[Multipart message — attachments visible in raw view] - view raw

On 18 May 2013 20:33, "Dennis Lee Bieber" <wlfraed@ix.netcom.com> wrote:
>         Python threads work fine if the threads either rely on intelligent
> DLLs for number crunching (instead of doing nested Python loops to
> process a numeric array you pass it to something like NumPy which
> releases the GIL while crunching a copy of the array) or they do lots of
> I/O and have to wait for I/O devices (while one thread is waiting for
> the write/read operation to complete, another thread can do some number
> crunching).

Has nobody thought of a context manager to allow a part of your code to
free up the GIL? I think the GIL is not inherently bad, but if it poses a
problem at times, there should be a way to get it out of your... Way.

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

Thread

Please help with Threading Jurgens de Bruin <debruinjj@gmail.com> - 2013-05-18 01:58 -0700
  Re: Please help with Threading Peter Otten <__peter__@web.de> - 2013-05-18 11:09 +0200
    Re: Please help with Threading Jurgens de Bruin <debruinjj@gmail.com> - 2013-05-18 04:23 -0700
      Re: Please help with Threading Peter Otten <__peter__@web.de> - 2013-05-18 14:01 +0200
  Re: Please help with Threading Dave Angel <davea@davea.name> - 2013-05-18 09:55 -0400
  Re: Please help with Threading Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2013-05-18 15:28 -0400
  RE: Please help with Threading Carlos Nepomuceno <carlosnepomuceno@outlook.com> - 2013-05-19 03:02 +0300
  Re: Please help with Threading Chris Angelico <rosuav@gmail.com> - 2013-05-19 10:38 +1000
  Re: Please help with Threading Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2013-05-19 17:46 -0400
  Re: Please help with Threading Chris Angelico <rosuav@gmail.com> - 2013-05-20 07:52 +1000
  Re: Please help with Threading Dave Angel <davea@davea.name> - 2013-05-19 21:04 -0400
  Re: Please help with Threading Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2013-05-19 22:58 -0400
  Re: Please help with Threading Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2013-05-19 23:25 -0400
  Re: Please help with Threading Fábio Santos <fabiosantosart@gmail.com> - 2013-05-20 07:25 +0100
  Re: Please help with Threading Jurgens de Bruin <debruinjj@gmail.com> - 2013-06-02 18:47 -0700

csiph-web