Arjan van de Ven (arjan@xxxxxxxxxxxxxxx) said: > Another one is __log_buf; this is currently 128Kb. Arguably it's > important for debugging to get 128Kb of dmesg info, but I wonder if 64Kb > would be enough as well, it's another easy save by setting > CONFIG_LOG_BUF_SHIFT to 16. 64k of savings I'm not sure is enough - you can get more by whacking userspace. The 2+MB from NR_CPUS looks worthwhile. > A third one is disabling CPU hotplug. CPU hotplug keeps quite a bit of > code in the kernel, that otherwise is boot-time only and gets evicted > right after boot..... You could argue the same for PCI hotplug but > cardbus is sort of the party spoiler there I suppose. Xen and other virt stuff trips you up here. Bill -- fedora-devel-list mailing list fedora-devel-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/fedora-devel-list
