linux-kernel - Re: local_add

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Message-Id: <20081215.225703.178475399.davem@davemloft.net>
Date:	Mon, 15 Dec 2008 22:57:03 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	rusty@...tcorp.com.au
Cc:	rostedt@...dmis.org, akpm@...ux-foundation.org,
	linux-kernel@...r.kernel.org, mathieu.desnoyers@...ymtl.ca,
	paulus@...ba.org, benh@...nel.crashing.org
Subject: Re: local_add_return

From: Rusty Russell <rusty@...tcorp.com.au>
Date: Tue, 16 Dec 2008 17:03:00 +1030

> Now, I posted a benchmark patch before for archs to test.  I'm interested
> in Sparc64.  Does any arch win from using multiple counters?  PowerPC has
> soft interrupt disable, so that solution wins over atomic_long_t for them.

I'll get you some sparc64 numbers.
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