On Thu, 2011-09-15 at 17:54 +0200, Ralf Corsepius wrote: > 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. OS-side boot measurement tools cannot know how long the BIOS/EFI and bootloader stages of boot took. -- Adam Williamson Fedora QA Community Monkey IRC: adamw | Twitter: AdamW_Fedora | identi.ca: adamwfedora http://www.happyassassin.net -- devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/devel
