From: Oliver Neukum <oliver@neukum.org>
To: Hugh Dickins <hugh@veritas.com>
Cc: Arjan van de Ven <arjan@infradead.org>,
Daniel Drake <ddrake@brontes3d.com>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: Re: speeding up swapoff
Date: Wed, 29 Aug 2007 18:18:42 +0200 [thread overview]
Message-ID: <200708291818.44089.oliver@neukum.org> (raw)
In-Reply-To: <Pine.LNX.4.64.0708291701140.617@blonde.wat.veritas.com>
Am Mittwoch 29 August 2007 schrieb Hugh Dickins:
> On Wed, 29 Aug 2007, Oliver Neukum wrote:
> > Am Mittwoch 29 August 2007 schrieb Arjan van de Ven:
> > > Another question, if this is during system shutdown, maybe that's a
> > > valid case for flushing most of the pagecache first (from userspace)
> > > since most of what's there won't be used again anyway. If that's enough
> > > to make this go faster...
> >
> > Is there a good reason to swapoff during shutdown?
>
> Three reasons, I think, only one of them compelling:
>
> 1. Tidiness.
> 2. So swapoff gets testing and I get to hear of any bugs in it.
> 3. If a regular swapfile is used instead of a disk partition, you
> need to swapoff before its filesystem can be unmounted cleanly.
Yes. I hadn't thought of that. I am using a dedicated disk.
Regards
Oliver
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next prev parent reply other threads:[~2007-08-29 16:18 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-08-29 13:29 Daniel Drake
2007-08-29 14:30 ` Arjan van de Ven
2007-08-29 14:36 ` Oliver Neukum
2007-08-29 16:04 ` Hugh Dickins
2007-08-29 16:18 ` Oliver Neukum [this message]
2007-08-29 14:44 ` Daniel Drake
2007-08-29 15:12 ` Juergen Beisert
2007-08-30 15:57 ` Bill Davidsen
2007-09-01 22:20 ` Andi Kleen
2007-08-29 15:58 ` Hugh Dickins
2007-08-29 15:36 ` Hugh Dickins
2007-08-30 8:27 ` Eric W. Biederman
2007-08-30 10:36 ` Hugh Dickins
2007-08-30 15:05 ` Daniel Drake
2007-08-29 16:08 ` Lee Schermerhorn
[not found] <fa.j/pO3mTWDugTdvZ3XNr9XpvgzPQ@ifi.uio.no>
[not found] ` <fa.ed9fasZXOwVCrbffkPQTX7G3a7g@ifi.uio.no>
[not found] ` <fa./NZA3biuO1+qW5pW8ybdZMDWcZs@ifi.uio.no>
2007-08-30 1:37 ` Robert Hancock
2007-08-30 13:55 ` Helge Hafting
2007-08-30 14:06 ` Xavier Bestel
2007-08-30 14:06 ` Helge Hafting
2007-08-30 14:14 ` Xavier Bestel
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