From: Konstantin Khomoutov <kostix@bswap.ru>
To: Peter Backes <rtc@helen.PLASMA.Xg8.DE>
Cc: "Ævar Arnfjörð Bjarmason" <avarab@gmail.com>,
"Derek Fawcus" <dfawcus+lists-git@employees.org>,
git@vger.kernel.org
Subject: Re: Git should preserve modification times at least on request
Date: Fri, 23 Feb 2018 15:28:26 +0300 [thread overview]
Message-ID: <20180223122826.zuqncwduvf2n2all@tigra> (raw)
In-Reply-To: <20180221221420.GA7743@helen.PLASMA.Xg8.DE>
On Wed, Feb 21, 2018 at 11:14:20PM +0100, Peter Backes wrote:
[...]
> atime, in contrast, was clearly one of the rather nonsensical
> innovations of UNIX: Do one write to the disk for each read from the
> disk. C'mon, really? It would have been a lot more reasonable to simply
> provide a generic way for tracing read() system calls instead; then
> userspace could decide what to do with that information and which of it
> is useful and should be kept and perhaps stored on disk. Now we have
> this ugly hack called relatime to deal with the problem.
[...]
IIUC, the purpose of atime can be more apparent if you consider it in
the context of the time it appeared: the systems were multi-user but the
disks were small, so a question "what files are lying there but appear
to be unused" was rather sensical to ask as such files could be found,
reported and then considered for deletion of moving off rotating media
to tapes etc.
prev parent reply other threads:[~2018-02-23 13:25 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-19 21:22 Git should preserve modification times at least on request Peter Backes
2018-02-19 21:58 ` Johannes Schindelin
2018-02-19 22:08 ` Peter Backes
2018-02-20 1:22 ` Theodore Ts'o
2018-02-20 10:46 ` Johannes Schindelin
2018-02-20 11:53 ` Peter Backes
2018-02-20 21:05 ` Peter Backes
2018-02-20 22:32 ` Johannes Schindelin
2018-02-20 22:48 ` Peter Backes
2018-02-21 21:30 ` Phillip Wood
2018-02-19 22:37 ` Randall S. Becker
2018-02-19 23:22 ` Hilco Wijbenga
2018-02-20 16:42 ` Hilco Wijbenga
2018-02-20 21:16 ` Jeff King
2018-02-20 22:05 ` Peter Backes
2018-02-21 9:48 ` Jacob Keller
2018-02-20 23:40 ` Junio C Hamano
2018-02-21 21:03 ` Derek Fawcus
2018-02-21 21:33 ` Ævar Arnfjörð Bjarmason
2018-02-21 22:14 ` Peter Backes
2018-02-21 22:44 ` Ævar Arnfjörð Bjarmason
2018-02-21 23:12 ` Peter Backes
2018-02-21 23:58 ` Randall S. Becker
2018-02-22 2:05 ` 'Peter Backes'
2018-02-26 10:56 ` Andreas Krey
2018-02-26 11:04 ` 'Peter Backes'
2018-02-22 23:24 ` Derek Fawcus
2018-02-23 12:28 ` Konstantin Khomoutov [this message]
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