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Re: Py2.7/FreeBSD: maximum number of open files

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Date Mon, 14 Nov 2011 20:34:31 +0100
From Christian Heimes <lists@cheimes.de>
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To Tobias Oberstein <tobias.oberstein@tavendo.de>
Subject Re: Py2.7/FreeBSD: maximum number of open files
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Am 14.11.2011 19:28, schrieb Tobias Oberstein:
> Thanks! This is probably the most practical option I can go.
> 
> I've just tested: the backported new IO on Python 2.7 will indeed
> open >32k files on FreeBSD. It also creates the files much faster.
> The old, non-monkey-patched version was getting slower and
> slower as more files were opened/created ..

I wonder what's causing the O(n^2) behavior. Is it the old file type or
BSD's fopen() fault?


> There seem to be slight differences though:
> 
> Non-monkey patched: I can write to the file a non-Unicode string,
> even when the file was opened non-Binary.
> 
> With monkey patch: either open the file Binary-mode, or
> write Unicode strings ..

Python 3.x doesn't collate data and text but distinguishes between bytes
(str type in Python 2.x) and unicode. You can't write unicode to a
binary file and str to a text file. See it as an opportunity! You are
taking the first step towards Python 3 compatibility. :)

Christian

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Thread

AW: Py2.7/FreeBSD: maximum number of open files Tobias Oberstein <tobias.oberstein@tavendo.de> - 2011-11-14 09:03 -0800
  Re: Py2.7/FreeBSD: maximum number of open files Jon Clements <joncle@googlemail.com> - 2011-11-14 09:33 -0800
    AW: Py2.7/FreeBSD: maximum number of open files Tobias Oberstein <tobias.oberstein@tavendo.de> - 2011-11-14 09:46 -0800
    Re: Py2.7/FreeBSD: maximum number of open files Christian Heimes <lists@cheimes.de> - 2011-11-14 19:03 +0100
    AW: Py2.7/FreeBSD: maximum number of open files Tobias Oberstein <tobias.oberstein@tavendo.de> - 2011-11-14 10:28 -0800
    Re: Py2.7/FreeBSD: maximum number of open files Christian Heimes <lists@cheimes.de> - 2011-11-14 20:34 +0100
      Re: Py2.7/FreeBSD: maximum number of open files Chris Torek <nospam@torek.net> - 2011-11-30 19:29 +0000

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