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To: gentoo-dev@g.o
From: Rich Freeman <rich0@g.o>
Subject: Re: Re: proj/portage:master commit in: pym/portage/dbapi/
Date: Mon, 28 Nov 2011 07:57:00 -0500
On Mon, Nov 28, 2011 at 3:06 AM, Michał Górny <mgorny@g.o> wrote:
> Have you considered time overhead of moving files in unnatural order?

Rather than re-discuss this point it would probably be better for
everybody to just read through the entire thread again, particularly
Cirian's post and its follow-ups.  My understanding is that the patch
has already been reverted.

Now, if somebody has a suggestion for how to sort the files in such a
way as to improve the performance (assuming that it doesn't already
happen in inode order) that would certainly take things forward.

Sorting lists in RAM is cheap, disk seeks are expensive.

Of course, if you're using tmpfs it is either all in RAM or in swap in
the first place, and I'm not sure if swap brings in additional
considerations here.

Rich


References:
Re: proj/portage:master commit in: pym/portage/dbapi/
-- Fabian Groffen
Re: proj/portage:master commit in: pym/portage/dbapi/
-- Arfrever Frehtes Taifersar Arahesis
Re: Re: proj/portage:master commit in: pym/portage/dbapi/
-- Michał Górny
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