May be add something like profiling option with patch for implementing such feature? Best regards, Anton Kochkov.
On Sun, May 1, 2011 at 07:37, Scott Duplichan <[email protected]> wrote: > Kevin O'Connor wrote: > > ] That's a great boot time! Do you have a breakdown of where the 640ms > ] is spent? > ] > ] -Kevin > > Hello Kevin, > > I tried adding some serial logging to get an idea about where > the time is spent. The logging adds 8 ms to the boot time: > > Time in ms > 0 cold reset > 366 memory initialization complete > 469 seabios: maininit(void) > 483 seabios: vga_setup() called > 604 seabios: vga_setup() returned > 621 seabios: startBoot(void) > 648 dos autoexec utility logs pmtimer value > > It looks like the lengthy operations are memory init and VBIOS > execution, which is consistent with past experience. > > UEFI BIOS on this same hardware platform is taking more than > 10 seconds. > > Here seabios kconfig options I changed: > > Build for coreboot y > Hardware init during option ROM execution y > Bootmenu n > ATA controllers n > AHCI controllers y > Floppy controller n > PS/2 port n > USB UHCI controllers n > Parallel port n > PCIBIOS interface n > APM interface n > PnP BIOS interface n > S3 resume n > SMBIOS n > Serial port debugging y > Show screen writes on debug ports n > > Thanks, > Scott > > > -- > coreboot mailing list: [email protected] > http://www.coreboot.org/mailman/listinfo/coreboot > -- coreboot mailing list: [email protected] http://www.coreboot.org/mailman/listinfo/coreboot
