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Re: Speeding up Python's exit

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Date Fri, 1 Mar 2013 21:51:52 -0500
Subject Re: Speeding up Python's exit
From Jason Swails <jason.swails@gmail.com>
To Antoine Pitrou <solipsis@pitrou.net>
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On Fri, Mar 1, 2013 at 5:51 PM, Antoine Pitrou <solipsis@pitrou.net> wrote:

> Dave Angel <davea <at> davea.name> writes:
> >
> > Note he didn't say the python buffers would be flushed.  It's the OS
> > buffers that are flushed.
>
> Now please read my message again. The OS buffers are *not* flushed
> according
> to POSIX.
>

I have observed this behavior on some Linux systems with a Fortran program
that terminated abnormally (via a kill signal).  Other Linux systems I've
used appear to flush their file buffers to disk in the event of a kill
signal, it really depends on the system.

If a file object's destructor is not called when the Python interpreter
exits and it's up to the OS to flush the file buffers to disk, you can't be
sure that it will do so.  And as Antoine pointed out, POSIX standard
doesn't require that they do.

All the best,
Jason

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Thread

Speeding up Python's exit Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-02-28 16:49 +0000
  Re: Speeding up Python's exit Neil Cerutti <neilc@norwich.edu> - 2013-02-28 17:02 +0000
  Re: Speeding up Python's exit Chris Angelico <rosuav@gmail.com> - 2013-03-01 04:06 +1100
  Re: Speeding up Python's exit Chris Angelico <rosuav@gmail.com> - 2013-03-01 04:33 +1100
  Re: Speeding up Python's exit Devin Jeanpierre <jeanpierreda@gmail.com> - 2013-02-28 12:33 -0500
  Re: Speeding up Python's exit Devin Jeanpierre <jeanpierreda@gmail.com> - 2013-02-28 12:31 -0500
  Re: Speeding up Python's exit Grant Edwards <invalid@invalid.invalid> - 2013-03-01 01:17 +0000
    Re: Speeding up Python's exit Antoine Pitrou <solipsis@pitrou.net> - 2013-03-01 19:10 +0000
    Re: Speeding up Python's exit Dave Angel <davea@davea.name> - 2013-03-01 14:17 -0500
    Re: Speeding up Python's exit Antoine Pitrou <solipsis@pitrou.net> - 2013-03-01 22:51 +0000
      Re: Speeding up Python's exit Ross Ridge <rridge@csclub.uwaterloo.ca> - 2013-03-03 18:27 -0500
    Re: Speeding up Python's exit Jason Swails <jason.swails@gmail.com> - 2013-03-01 21:51 -0500
  Re: Speeding up Python's exit Antoine Pitrou <solipsis@pitrou.net> - 2013-03-01 14:59 +0000

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