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From: "Martin J. Bligh" <Martin.Bligh@us.ibm.com>
To: Andrea Arcangeli <andrea@suse.de>
Cc: linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: Scalability problem (kmap_lock) with -aa kernels
Date: Wed, 20 Mar 2002 10:29:57 -0800	[thread overview]
Message-ID: <124860000.1016648997@flay> (raw)
In-Reply-To: <122510000.1016648204@flay>

> => average cost = 1/N + (N+F)/N = (1+F+N)/N = 1 + (1+F)/N

Actually, I think this should have read 1 + (N+F)/N = 1+ 1 + F/N = 2 +F/N
but the point is the same.

Sorry,

M.


  reply	other threads:[~2002-03-20 18:30 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-03-20 16:14 Scalability problem (kmap_lock) with -aa kernels Martin J. Bligh
2002-03-20 16:39 ` Andrea Arcangeli
2002-03-20 17:41   ` Rik van Riel
2002-03-20 18:26     ` Andrea Arcangeli
2002-03-20 19:35       ` Rik van Riel
2002-03-20 18:16   ` Martin J. Bligh
2002-03-20 18:29     ` Martin J. Bligh [this message]
2002-03-20 18:40     ` Andrea Arcangeli
2002-03-20 18:15 ` Hugh Dickins
2002-03-20 18:56   ` Andrea Arcangeli
  -- strict thread matches above, loose matches on Subject: below --
2002-03-19  4:25 Martin J. Bligh
2002-03-19  8:58 ` Rik van Riel
2002-03-20  1:40 ` Andrea Arcangeli
2002-03-20  6:15   ` Martin J. Bligh
2002-03-20 12:30     ` Andrea Arcangeli

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