From: Andrew Morton <andrewm@uow.edu.au>
To: "Stephen C. Tweedie" <sct@redhat.com>
Cc: "linux-mm@kvack.org" <linux-mm@kvack.org>
Subject: Re: sys_exit() and zap_page_range()
Date: Tue, 11 Jul 2000 21:24:56 +1000 [thread overview]
Message-ID: <396B0408.3773A5B6@uow.edu.au> (raw)
In-Reply-To: <20000711093920.B1054@redhat.com>
"Stephen C. Tweedie" wrote:
>
> Hi,
>
> On Sat, Jul 08, 2000 at 12:43:26AM +1000, Andrew Morton wrote:
> >
> > Secondly, and quite unrelatedly, mmap002: why does the machine spend 10
> > seconds pounding the disk during the exit() call?
>
> msync().
Nope. Take out the msyncs and it still does it.
But with or without msync(), the file has been closed and unlinked when
mmap002 exits. Hence all those blocks are unreferenced and free. There
seems to be no need to write them back.
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next prev parent reply other threads:[~2000-07-11 11:24 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2000-07-07 14:43 Andrew Morton
2000-07-07 16:42 ` Manfred Spraul
2000-07-09 17:30 ` Philipp Rumpf
2000-07-09 17:42 ` Arjan van de Ven
2000-07-09 23:54 ` Andrew Morton
2000-07-10 9:53 ` Philipp Rumpf
2000-07-10 15:36 ` Andrew Morton
2000-07-10 17:34 ` Philipp Rumpf
2000-07-11 8:39 ` Stephen C. Tweedie
2000-07-11 11:24 ` Andrew Morton [this message]
2000-07-11 13:35 ` Stephen C. Tweedie
2000-07-11 15:23 ` Richard Guenther
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