Date: Sun, 8 Jan 2006 00:00:21 -0800
From: Andrew Morton <akpm@osdl.org>
To: Anton Blanchard <anton@samba.org>
Cc: jschopp@austin.ibm.com, jes@trained-monkey.org, rmk+lkml@arm.linux.org.uk,
       hch@infradead.org, linux-kernel@vger.kernel.org, ak@suse.de,
       torvalds@osdl.org, viro@ftp.linux.org.uk, linuxppc64-dev@ozlabs.org,
       mingo@elte.hu, nico@cam.org, oleg@tv-sign.ru, alan@lxorguk.ukuu.org.uk,
       arjan@infradead.org
Subject: Re: PowerPC fastpaths for mutex subsystem
Message-Id: <20060108000021.588c6f5f.akpm@osdl.org>
In-Reply-To: <20060108074356.GM26499@krispykreme>
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Anton Blanchard <anton@samba.org> wrote:
>
>  
> > Doens't this mean that the sped-up mutexes are still slower than semaphores?
> 
> Wasnt most of the x86 mutex gain a result of going from fair to unfair
> operation? The current ppc64 semaphores are unfair.
> 

What's "unfair"?  Mutexes are FIFO, as are x86 semaphores.
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