From: zimoun <zimon.toutoune@gmail.com>
To: Pierre Neidhardt <mail@ambrevar.xyz>, Lars-Dominik Braun <lars@6xq.net>
Cc: "guix-devel@gnu.org" <guix-devel@gnu.org>, pkill9 <pkill9@runbox.com>
Subject: Re: guix environment --profile with --ad-hoc
Date: Fri, 12 Mar 2021 10:47:04 +0100 [thread overview]
Message-ID: <86v99wiu07.fsf@gmail.com> (raw)
In-Reply-To: <87ft114fup.fsf@ambrevar.xyz>
Hi Pierre,
On Thu, 11 Mar 2021 at 21:04, Pierre Neidhardt <mail@ambrevar.xyz> wrote:
> My only complaint is that it's still a bit slow:
>
> --8<---------------cut here---------------start------------->8---
> time guix environment -C --profile=/my/profile -- exit
>
> real 0m2.372s
> --8<---------------cut here---------------end--------------->8---
>
> Same without `-C`.
>
> In comparison,
>
> --8<---------------cut here---------------start------------->8---
> time env -i $(which bash) --norc --noprofile -c 'source nyxt/etc/profile && exit'
>
>
> real 0m0.004s
> --8<---------------cut here---------------end--------------->8---
You are not comparing apple to apple. :-)
> Is there anything we can do to speed this up?
We already had this discussion. :-)
See the thread: <https://yhetil.org/guix/87o8j35ncu.fsf@ambrevar.xyz>
Compared to the previous discussion, the --profile is a good improvement
since it by-passes the computations of derivations and profiles and the
time of the container part still is less than 0.2s on my machine, which
is acceptable, as you are saying. :-)
Therefore, IIUC, your question is: how to speed up the call of Guix
commands? Right?
For instance, cold cache:
--8<---------------cut here---------------start------------->8---
$ sudo sh -c 'echo 3 > /proc/sys/vm/drop_caches'
$ time guix environment --help >/dev/null
real 0m1.730s
user 0m0.845s
sys 0m0.198s
--8<---------------cut here---------------end--------------->8---
BTW, what about “guix run” which is faster, right?
Cheers,
simon
next prev parent reply other threads:[~2021-03-12 9:48 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-09 2:05 guix environment --profile with --ad-hoc pkill9
2021-03-09 7:25 ` Lars-Dominik Braun
2021-03-09 8:20 ` Pierre Neidhardt
2021-03-09 8:28 ` Lars-Dominik Braun
2021-03-11 20:04 ` Pierre Neidhardt
2021-03-12 9:47 ` zimoun [this message]
2021-03-12 9:59 ` Pierre Neidhardt
2021-03-12 11:23 ` Ricardo Wurmus
2021-03-12 11:26 ` Pierre Neidhardt
2021-03-12 13:12 ` zimoun
2021-03-15 16:23 ` Ludovic Courtès
2021-03-12 10:42 ` Lars-Dominik Braun
2021-03-12 10:51 ` Pierre Neidhardt
2021-03-12 15:44 ` Pierre Neidhardt
2021-03-13 7:59 ` Lars-Dominik Braun
2021-03-13 8:55 ` Pierre Neidhardt
2021-03-15 9:25 ` zimoun
2021-03-10 10:04 ` pkill9
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