Leo Famulari <l...@famulari.name> skribis: > On Sat, Apr 16, 2016 at 03:12:15PM +0200, Joram Schrijver wrote: >> I am running Arch Linux, also with systemd 229. It doesn't look like >> Debian applies any patches to systemd, so our installations should >> pretty much be the same. >> >> Perhaps the limit is only reached during the build process of some >> specific packages? > > `guix pull` usually doesn't build any packages, but sometimes it does > need to. My (limited) understanding is that it sometimes needs to build > (or download) updated dependencies of Guix itself. > > Do you think the number of "Tasks" would increase with more cores? I > only have 4 cores on my machines. Maybe if you had more, the builders > spawned by your guix-daemon would run more tasks as a consequence of > using all the cores.
Right, ‘guix pull’ entails a build of Guix using as many cores as possible, with one process per core (and I think each Guile has two threads, one of which is the signal delivery thread.) So, if the limit on the total number of threads + processes is 512 and you have 256 cores or more (lucky you!), you may hit the limit. Ludo’.
