On Wed, Sep 30 2015, ebiederm@xxxxxxxxxxxx (Eric W. Biederman) wrote: > Rasmus Villemoes <linux@xxxxxxxxxxxxxxxxxx> writes: > >> A few suggestions for reducing the footprint of pid namespaces when >> CONFIG_PID_NS=n. The savings are admittedly not huge: >> >> $ scripts/bloat-o-meter /tmp/vmlinux.master vmlinux >> add/remove: 0/7 grow/shrink: 30/25 up/down: 368/-1032 (-664) > > #ifdefs in C files. > More code to maintain. > Very minor savings. > > I don't think it is worth the pain. If anything I would prefer to > remove CONFIG_PID_NS. The CONFIG_PID_NS ifdef really is about keeping > from exposing people to the feature tha don't use it more than it is > about size reduction. > > Or do you have a case where this makes the difference between a usable > kernel and a kernel that is not? No, it was mostly a small tinification effort, and we'd presumably also save a few cycles on thread creation, but not anything measurable. Rasmus _______________________________________________ Containers mailing list Containers@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/containers
