‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐On Friday, November 6, 2020 9:10 AM, Ludovic Courtès <ludo@gnu.org> wrote:
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> Hi,>> Luis Felipe luis.felipe.la@protonmail.com skribis:>> > ‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐> > On Tuesday, November 3, 2020 11:32 PM, zimoun zimon.toutoune@gmail.com wrote:> >> > > Hi,> > >> > > > https://git.savannah.gnu.org/cgit/guix.git/commit/?id=76ea70bd70aeb76570445c11cea2f98139192b54> > >> > > Clever workaround! What are now the performances on previous examples> > > (same profiles and same packages)?> >> > In my case there seem to be no improvement (using Guix 5e7cf66fb35780f930ad0bc5fe21ac330df4411d).>> Please note that the change above addresses only one specific source of> slowness, the ‘xdg-mime-database’ hook, and only in specific cases.>> It’s good to look at the overall timing of ‘guix install’, because> that’s what matters in the end, but as we work on optimizing it, we have> to look at specific aspects of it.>> > $ time guix package -i perl --max-jobs=1
Yeah, sorry I was more focused on the general issue (#44053), but I understand.
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> [...]>> > injertando 12 paquetes en /gnu/store/anknpdyhmfirw3rz2k9zm9kiyak8yy1s-cups-filters-1.27.4.drv ...> > construyendo la base de datos MIME XDG...> > injertando 3 paquetes en /gnu/store/xgny7xbl635g8na8x03x4cdr7abiphiw-cups-2.3.3.drv ...> > injertando 20 paquetes en /gnu/store/yhjl68x7kcjbv40v823x4hl8rvv8l50b-gtk+-2.24.32.drv ...> > injertando 21 paquetes en /gnu/store/kq37fnw8335f1hqc3j4hhqqcdnhl371p-gtk+-3.24.20.drv ...> > creando la caché de temas de iconos de GTK+...> > construyendo los ficheros de caché para los métodos de entrada de GTK+...> > construyendo perfil con 86 paquetes...> > real 8m38,121s> > user 0m2,742s> > sys 0m0,338s>> Here it’s likely that grafting is what’s taking the most time on a> spinning disk.
It does take some time, but since I can see the output change from grafting to grafting, I at least can tell guix is doing something, so I just let it be.
Compared to grafting, the last step "construyendo perfil con X paquetes..." ("building profile with X packages..."), just stays there without change for several minutes, so it actually seems slower to me. Initially, I thought that guix had frozen.
Also, even though, the "building profile" step has a throbber (| / - \) to indicate that something is being done, it frequently stops in one of the frames of the sequence and stays there until the end.
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> We should hack (guix status) so it can optionally prefix each event with> a timestamp.>> As far as ‘xdg-mime-database’ is concerned, it should be down to 0s,> unless your profile contains one of the packages I cited (libreoffice,> gcr, hugin, etc.).
Yes, I have Libreoffice installed.