linux-kernel - Re: [PATCH] v4 RCU: the bloatwatch edition

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Message-ID: <4851.1245687329@redhat.com>
Date:	Mon, 22 Jun 2009 17:15:29 +0100
From:	David Howells <dhowells@...hat.com>
To:	paulmck@...ux.vnet.ibm.com
Cc:	dhowells@...hat.com, Andrew Morton <akpm@...ux-foundation.org>,
	Ingo Molnar <mingo@...e.hu>, linux-kernel@...r.kernel.org,
	niv@...ibm.com, dvhltc@...ibm.com, lethal@...ux-sh.org,
	kernel@...tstofly.org, matthew@....cx
Subject: Re: [PATCH] v4 RCU: the bloatwatch edition

Paul E. McKenney <paulmck@...ux.vnet.ibm.com> wrote:

> Of course, I well remember programming systems with 4K of core memory
> back in the 1970s, and therefore feel a bit guilty about sticking deep
> embedded platforms with the increase in memory footprint represented
> by Hierarchical RCU compared to Classic RCU.  And Bloatwatch RCU is much
> smaller and easier to understand/maintain than is Classic RCU.

Both Fujitsu and Panasonic really want to keep the kernel size down.
Squeezing a kernel into a megabyte or less of flash is one of the main aims,
and anything that saves nearly 1K is not to be sneered at.

David
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