From: "Александр Берсенев" <bay@hackerdom.ru>
To: gentoo-soc@lists.gentoo.org
Subject: Re: [gentoo-soc] rfc: reducing the time of "Calculating dependencies" phase project.
Date: Sat, 27 Apr 2013 11:29:37 +0600 [thread overview]
Message-ID: <CAPomEdyjBs0F-+=BDgDi=mBwpfwJVVadwhSdZb=jXRSb+T_6_A@mail.gmail.com> (raw)
In-Reply-To: <m3zjwkbzao.fsf@carbon.jhcloos.org>
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The modification date of /usr/portage and overlays dir can be used as a
signal for emerge to drop some caches. In this case the drop cache command
could just do "touch <dir>", and utils, modifying tree(e.g. "ebuild
<ebuild> manifest") could do this operation as well.
Best,
Alexander Bersenev
2013/4/27 James Cloos <cloos@jhcloos.com>
> As someone whe often does edit ebuilds in overlays (very occasionally in
> /usr/portage, too), having to run something to update the cache for said
> overlay is OK.
>
> But it *must* update just the cli-specified overlay(s), w/o having to go
> through and update everything every time it is run.
>
> For comparison, my primary workstation, with several overlays, takes
> several minutes to do a dep. Even with a hot cache. Improving that to
> something reasonable is the single most important change portage can get.
>
> Also, if /var/db/pkg is to be cached, the existing /var/db/pkg layout
> should remain as a backup, so that the cache of what is installed can
> be restored easily should it ever get corrupted. Portage can update
> that cache after updating the /var/db/pkg/ tree.
>
> -JimC
> --
> James Cloos <cloos@jhcloos.com> OpenPGP: 1024D/ED7DAEA6
>
>
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next prev parent reply other threads:[~2013-04-27 5:29 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-04-25 18:58 [gentoo-soc] rfc: reducing the time of "Calculating dependencies" phase project Александр Берсенев
2013-04-26 1:17 ` Zac Medico
2013-04-26 11:43 ` Александр Берсенев
2013-04-26 15:59 ` Zac Medico
2013-04-27 0:19 ` James Cloos
2013-04-27 5:29 ` Александр Берсенев [this message]
2013-04-27 19:23 ` Александр Берсенев
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