From mboxrd@z Thu Jan  1 00:00:00 1970
From: ludo@gnu.org (Ludovic =?utf-8?Q?Court=C3=A8s?=)
Subject: Re: Ready for Guile 2.2!
Date: Fri, 21 Apr 2017 23:14:08 +0200
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In-Reply-To: <cuc7f2fns24.fsf@igalia.com> (Andy Wingo's message of "Thu, 20
	Apr 2017 15:10:11 +0200")
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To: Andy Wingo <wingo@igalia.com>
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Andy Wingo <wingo@igalia.com> skribis:

> On Thu 20 Apr 2017 14:35, ludo@gnu.org (Ludovic Court=C3=A8s) writes:
>
>> ludo@gnu.org (Ludovic Court=C3=A8s) skribis:
>>
>>> ;; 2.724686s real time, 3.117062s run time.  0.880827s spent in GC.
>>> scheme@(guile-user)> (version)
>>> $1 =3D "2.0.13"
>>>
>> scheme@(guile-user)> ,use(guix scripts build)
>> scheme@(guile-user)> ,time (guix-build "libreoffice" "certbot" "xmonad" =
"-n" "--no-substitutes" "--no-build-hook")
>>
>> [...]
>>
>> ;; 1.826528s real time, 1.994426s run time.  0.382750s spent in GC.
>> scheme@(guile-user)> (version)
>> $1 =3D "2.2.1"
>>
>> That=E2=80=99s a 33% speedup compared to 2.0.
>
> That is a 50% speedup compared to 2.0 :)  If we consider its speed as
> being how many times you could do this per second, then 2.0 speed is
> 1/2.72, and 2.2.1 speed is 1/1.82.  Speed ratio is then
> 2.72/1.82=3D1.4945.  So 2.2.1 is 1.5x the speed of 2.0, or 50% faster :)

Right!  What I meant to say is that:

  2.72 - 0.33=C3=972.72 =3D 1.82

But maybe that=E2=80=99s not the preferred way to present things?

Anyway, it=E2=80=99s _way faster_.  :-)

Ludo=E2=80=99.