From: zimoun <zimon.toutoune@gmail.com>
To: Maxim Cournoyer <maxim.cournoyer@gmail.com>
Cc: 44053@debbugs.gnu.org
Subject: bug#44053: Poor profile generation performance on spinning disks
Date: Mon, 19 Oct 2020 10:18:43 +0200 [thread overview]
Message-ID: <CAJ3okZ1AMUteo3qpAHb0m6RS3ApawCrdfQwVNkDg6Xtc515LcA@mail.gmail.com> (raw)
In-Reply-To: <87zh4k435a.fsf@gmail.com>
Hi Maxim,
On Sun, 18 Oct 2020 at 05:37, Maxim Cournoyer <maxim.cournoyer@gmail.com> wrote:
> On my home machine, will is still relying on 2 x 1 TB spinning drives in
> RAID1, rebuilding my user profile, which contains 182 entries, takes on
> average about 20 minutes, even when there are no packages to be built:
The database build time seems correlated to the number of packages in
the very profile. Well, I have not benchmarked to see if it is
linear, quadratic; or worse or better.
> --8<---------------cut here---------------start------------->8---
[...]
> building XDG MIME database...
> successfully built /gnu/store/cir84qj587i6is4akgqand7ahg9bj938-xdg-mime-database.drv
> successfully built /gnu/store/cir84qj587i6is4akgqand7ahg9bj938-xdg-mime-database.drv
> /gnu/store/j0bznlj2ibnhirijhnwpkkxzz4qfk8wb-xdg-mime-database
>
> real 1m7.344s
> user 0m1.331s
> sys 0m0.053s
> --8<---------------cut here---------------end--------------->8---
Well, it is all clear to me, but I do not know if we can do better
because these 2 XDG updates seem relying on the external binaries
"/bin/update-desktop-database" and "/bin/update-mime-database". I
have not timed the function 'xdg-desktop-database' but all the time
should be spent on these, I bet. :-)
All the best,
simon
next prev parent reply other threads:[~2020-10-19 8:20 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-18 3:35 bug#44053: Poor profile generation performance on spinning disks Maxim Cournoyer
2020-10-18 23:05 ` Luis Felipe via Bug reports for GNU Guix
2020-10-19 8:18 ` zimoun [this message]
2020-10-19 18:18 ` Maxim Cournoyer
2022-03-23 12:38 ` zimoun
2022-03-23 16:17 ` Maxim Cournoyer
2022-03-23 16:54 ` zimoun
2023-08-26 22:11 ` jbranso--- via Bug reports for GNU Guix
2023-08-27 17:59 ` Luis Felipe via Bug reports for GNU Guix
2023-08-29 9:19 ` Ludovic Courtès
2023-08-29 21:51 ` Luis Felipe via Bug reports for GNU Guix
2023-09-09 11:02 ` Ludovic Courtès
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