linux-kernel - Re: [patch 02/23] SLUB: Rename NUMA defrag_ratio to remote_node_defrag

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Message-ID: <20071108210348.GX19691@waste.org>
Date:	Thu, 8 Nov 2007 15:03:48 -0600
From:	Matt Mackall <mpm@...enic.com>
To:	Christoph Lameter <clameter@....com>
Cc:	Mel Gorman <mel@...net.ie>, akpm@...ux-foundatin.org,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org
Subject: Re: [patch 02/23] SLUB: Rename NUMA defrag_ratio to remote_node_defrag_ratio

On Thu, Nov 08, 2007 at 12:01:24PM -0800, Christoph Lameter wrote:
> On Thu, 8 Nov 2007, Matt Mackall wrote:
> 
> > Not really. drivers/char/random.c does:
> > 
> > __get_cpu_var(trickle_count)++ & 0xfff
> 
> That is incremented on each call to add_timer_randomness. Not a high 
> enough resolution there. I guess I am stuck with get_cycles().

I'm not suggesting you use trickle_count, silly. I'm suggesting you
use a similar approach.

But perhaps I should just add a lightweight RNG to random.c and be
done with it.

-- 
Mathematics is the supreme nostalgia of our time.
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