Subject: Re: Maximum number of processes in Linux
From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Irfan Habib <irfan.habib@gmail.com>
Cc: linux-kernel@vger.kernel.org
In-Reply-To: <3420082f0608151059s40373a0bg4a1af3618c2b1a05@mail.gmail.com>
References: <3420082f0608151059s40373a0bg4a1af3618c2b1a05@mail.gmail.com>
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Date: Tue, 15 Aug 2006 19:37:28 +0100
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Ar Maw, 2006-08-15 am 22:59 +0500, ysgrifennodd Irfan Habib:
> What is the maximum number of process which can run simultaneously in
> linux? I need to create an application which requires 40,000 threads.
> I was testing with far fewer numbers than that, I was getting
> exceptions in pthread_create

On the usual default configuration far less. If you have lots of memory
and adjust the pid limits you can create 40,000 threads. Its not a very
good idea unless you are working on a system with several thousand
processors and usually means your program design is wrong, but you can
do it.

Alan
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