From: "Ludovic Courtès" <ludo@gnu.org>
To: 40504@debbugs.gnu.org
Subject: bug#40504: Insufficient high-level caching when grafts are enabled
Date: Wed, 08 Apr 2020 13:00:58 +0200 [thread overview]
Message-ID: <87sghe5jit.fsf@inria.fr> (raw)
Hello Guix,
--8<---------------cut here---------------start------------->8---
$ GUIX_PROFILING=add-data-to-store-cache guix system build gnu/system/examples/bare-bones.tmpl -d --no-grafts
/gnu/store/w5bsspzdgr55w01fiywir9a8glzlfiph-system.drv
'add-data-to-store' cache:
lookups: 2289
hits: 174 (7.6%)
.drv files: 1314 (57.4%)
Scheme files: 935 (40.8%)
$ GUIX_PROFILING=add-data-to-store-cache guix system build gnu/system/examples/bare-bones.tmpl -d
/gnu/store/fg95kb40mmyyl4py5b2238amzzqdy56k-system.drv
'add-data-to-store' cache:
lookups: 2557
hits: 360 (14.1%)
.drv files: 1473 (57.6%)
Scheme files: 1041 (40.7%)
$ guix describe
Generacio 137 Mar 31 2020 09:13:55 (nuna)
guix 011f941
repository URL: https://git.savannah.gnu.org/git/guix.git
branch: master
commit: 011f9412795c141ea05fdfa3096ab252252d7080
--8<---------------cut here---------------end--------------->8---
That the ‘add-data-to-store’ hit rate doubles when grafts are enabled
looks fishy.
Ludo’.
reply other threads:[~2020-04-08 11:02 UTC|newest]
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