linux-kernel - Re: New filesystem for Linux

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Message-ID: <Pine.LNX.4.64.0611041938490.24713@artax.karlin.mff.cuni.cz>
Date:	Sat, 4 Nov 2006 19:40:13 +0100 (CET)
From:	Mikulas Patocka <mikulas@...ax.karlin.mff.cuni.cz>
To:	Eric Dumazet <dada1@...mosbay.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: New filesystem for Linux

> The problem with a per_cpu biglock is that you may consume a lot of RAM for 
> big NR_CPUS. Count 32 KB per 'biglock' if NR_CPUS=1024

Does one Linux kernel run on system with 1024 cpus? I guess it must fry 
spinlocks... (or even lockup due to spinlock livelocks)

Mikulas
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