On 09/15/2011 09:42 AM, "Jóhann B. Guðmundsson" wrote: > On 09/15/2011 05:25 AM, Ralf Corsepius wrote: >> In general, there are other factors coming into play, such as parallel >> startup using more memory, parallelization not providing many advantages >> on systems with a small number of CPU cores, hard synchronisation points >> in the bootup process, poorly configured "services", ... and finally ... >> bugs. >> >> Anyway, some more figures: On the same machine, bootup times when >> booting from a (slow) external (IDE) USB2 HD: >> - Fedora 15/i386: ca. 135 secs. >> - Ubuntu 11.04/i386: ca. 70 secs. >> >> [Here bootup time: Wirst watch measured time from "grub prompt" to >> "login screen"] >> >> It shows the effect of slow disks (60secs w/ internal HD vs. 2.15 >> minutes w/ USB HD), but raises questions on why Ubuntu appears to be so >> much faster in this configuration. > > Could you run systemd-analyze plot> bootup.svg and post it somewhere > online
See: http://corsepiu.fedorapeople.org/scratch/bootup-20110915.1.svg FWIW: Though the log says 110s, the wrist watch measured bootup time is ca. 120-140 secs. Ralf -- devel mailing list devel@lists.fedoraproject.org https://admin.fedoraproject.org/mailman/listinfo/devel
