linux-kernel - Re: [PATCH 19/36] autonuma: memory follows CPU algorithm and task/mm

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Message-ID: <20120822223733.GQ16230@one.firstfloor.org>
Date:	Thu, 23 Aug 2012 00:37:33 +0200
From:	Andi Kleen <andi@...stfloor.org>
To:	Andrea Arcangeli <aarcange@...hat.com>
Cc:	Andi Kleen <andi@...stfloor.org>, linux-kernel@...r.kernel.org,
	linux-mm@...ck.org
Subject: Re: [PATCH 19/36] autonuma: memory follows CPU algorithm and task/mm_autonuma stats collection

> 
> This comment seems quite accurate to me (btw I taken it from
> sched-numa rewrite with minor changes).

I had expected it to describe the next function. If it's a strategic
overview maybe it should be somewhere else.

> Disabling irqs around lru_lock was an optimization to avoid increasing
> the hold time of the lock when all critical sections were short after
> the isolation code. Now it's used to rotate lrus at I/O completion too.

Thanks.
-Andi

-- 
ak@...ux.intel.com -- Speaking for myself only.
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