[bug #38145] Please add support for UEFI boot performance analysis specification

[Jordan Uggla]

URL:
  <http://savannah.gnu.org/bugs/?38145>

                 Summary: Please add support for UEFI boot performance
analysis specification
                 Project: GNU GRUB
            Submitted by: jordanu
            Submitted on: Tue 22 Jan 2013 08:05:46 PM GMT
                Category: None
                Severity: Major
                Priority: 5 - Normal
              Item Group: Feature Request
                  Status: None
                 Privacy: Public
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 
                 Release: Bazaar - trunk
         Reproducibility: None
         Planned Release: None

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Details:

Systemd-analyze can report how much time was spent at boot in firmware
initialization and the bootloader if the bootloader sets specific UEFI
variables (LoaderTicksInit and LoaderTicksExec) as described here:

http://www.freedesktop.org/wiki/Software/systemd/BootLoaderInterface

This feature is already supported by Gummiboot and appears to be popular.

Separately mentioned in the specification is the LoaderDevicePartUUID variable
which is not needed for systemd-analyze and, given that it can change how
devices are mounted by systemd at boot, should probably be considered
separately from the other two variables.




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