Date: Tue, 15 Aug 2006 17:12:36 -0600
From: Robert Hancock <hancockr@shaw.ca>
Subject: Re: Maximum number of processes in Linux
In-reply-to: <fa.evUDdOgjejpeNWKvgan3aKFF880@ifi.uio.no>
To: Irfan Habib <irfan.habib@gmail.com>
Cc: linux-kernel@vger.kernel.org
Message-id: <44E254E4.6090508@shaw.ca>
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Irfan Habib wrote:
> Hi,
> 
> 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

What architecture is this? On a 32-bit architecture with a 2MB stack 
size (which I think is the default) you couldn't possibly create more 
than 2048 threads just because of stack space requirements. Reducing the 
stack size would get you more.

I should also point out that any design that requires 40,000 threads is 
probably quite flawed unless you are running on a very large machine..

-- 
Robert Hancock      Saskatoon, SK, Canada
To email, remove "nospam" from hancockr@nospamshaw.ca
Home Page: http://www.roberthancock.com/

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