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Re: removing an ext2fs file forces disk activity
From: |
Thomas Bushnell, BSG |
Subject: |
Re: removing an ext2fs file forces disk activity |
Date: |
04 May 2002 13:05:55 -0700 |
User-agent: |
Gnus/5.09 (Gnus v5.9.0) Emacs/21.2 |
nisse@lysator.liu.se (Niels Möller) writes:
> Does anybody have any idea how often this case occurs with typical
> activities like compilation?
What's the point of the question: to decide if we can ignore the
issue, or to decide if the solution has to be terribly efficient?
> With the current code, dependent modifications of A, B, A, results in
>
> modify(A); sync
> modify(B); sync
> modify(A); synced sometime later
>
> The new scheme would change that to
>
> modify(A);
> modify(B); noting dependency
> sync(A);
> modify(A); note new dependency
>
> all assuming that so spontaneous syncing occurs between the
> modifications. So in this case we save one sync. Did I get this right?
Yes.
- Re: removing an ext2fs file forces disk activity, Niels Möller, 2002/05/04
- Re: removing an ext2fs file forces disk activity,
Thomas Bushnell, BSG <=
- Re: removing an ext2fs file forces disk activity, Niels Möller, 2002/05/04
- Re: removing an ext2fs file forces disk activity, Thomas Bushnell, BSG, 2002/05/04
- Re: removing an ext2fs file forces disk activity, Niels Möller, 2002/05/04
- Re: removing an ext2fs file forces disk activity, Thomas Bushnell, BSG, 2002/05/04
- Re: removing an ext2fs file forces disk activity, Niels Möller, 2002/05/04
- Re: removing an ext2fs file forces disk activity, Thomas Bushnell, BSG, 2002/05/04
- Re: removing an ext2fs file forces disk activity, Roland McGrath, 2002/05/04
- Re: removing an ext2fs file forces disk activity, Thomas Bushnell, BSG, 2002/05/04
Re: removing an ext2fs file forces disk activity, Jeroen Dekkers, 2002/05/04