linux-kernel - Re: 2.6.28, rlimits, performance and debian etch

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Message-ID: <8763k5u3xs.fsf@mid.deneb.enyo.de>
Date:	Fri, 23 Jan 2009 22:07:27 +0100
From:	Florian Weimer <fw@...eb.enyo.de>
To:	linux-kernel@...r.kernel.org
Cc:	DSA <debian-admin@...ts.debian.org>, team@...urity.debian.org,
	libpam-modules@...kages.debian.org
Subject: Re: 2.6.28, rlimits, performance and debian etch

* Peter Palfrader:

> Turns out that script is forking a lot and something in it or python or
> whereever closes all the file descriptors it doesn't want to pass on.
> That is, it starts at zero and goes up to ulimit -n/RLIMIT_NOFILE and
> closes them all with a few exceptions.
>
> Turns out that takes a long time when your limit -n is now 2^20 (1048576).

Interesting.

Can we make /proc more-or-less mandatory, so that the file descriptor
list can be retrieved explicitly?
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