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Subject: Re: duration of buildworld
From: David Chisnall <theraven@FreeBSD.org>
In-Reply-To: <20150727194954.GY44094@zxy.spb.ru>
Date: Tue, 28 Jul 2015 09:20:38 +0100
Cc: Matthias Apitz <guru@unixarea.de>, freebsd-current@freebsd.org
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References: <20150727055804.GA2312@c720-r276659>
 <20150727120006.GJ43740@zxy.spb.ru> <20150727184704.GA1777@c720-r276659>
 <20150727193410.GX44094@zxy.spb.ru> <20150727194039.GA2298@c720-r276659>
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To: Slawa Olhovchenkov <slw@zxy.spb.ru>
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On 27 Jul 2015, at 20:49, Slawa Olhovchenkov <slw@zxy.spb.ru> wrote:
>=20
> No idea.
> May be someone know about current status swap in file on UFS.
> This is work for me some time ago.

It sounds as if the swap was working (as the build took a long time, it =
didn=E2=80=99t run out of memory).  My guess would be that, before the =
reboot, something had wired (or, if not, then touched frequently enough =
to keep it in core) a large chunk of memory, which forced the swapping.  =
Swap files are expected to be slower than swap partitions (though if =
you=E2=80=99re swapping to a disk, the seek times are likely to dominate =
in both cases).

I don=E2=80=99t suppose there=E2=80=99s  capture of the output of top =
from before the reboot?

David