[Bug 376632] Re: Profiling is not automated, resulting in unnecessary boot time
dino99
376632 at bugs.launchpad.net
Fri Jan 2 15:30:21 UTC 2015
outdated report & no more maintained distro; please send a new one if
that issue still exist (using ubuntu-bug)
** Changed in: grub (Ubuntu)
Status: New => Invalid
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https://bugs.launchpad.net/bugs/376632
Title:
Profiling is not automated, resulting in unnecessary boot time
Status in grub package in Ubuntu:
Invalid
Bug description:
To make boot my current boot up time shorter, I just tried adding
profile as a kernel argument.
I measured boot time before the profiling three times. The average
boot up time was 27.5s. (measured from when I typed my LUKS passphrase
to when the gdm login screen was shown).
Then I booted with profile.
First boot took 4 mins and 10 secs.
Then I removed profile, booted three times and measured the average.
It is now 25.5s.
The result is 2 secs faster boot time. Or more than 6% boot time was
cut off by this.
I understand that the profile argument need to be set each time a new kernel is installed.
Then I tried to find out how to automate the process of making the first bootup after a kernel upgrade include the profile kernel argument. This, however, did not seem like an easy thing to do.
I think there should at least be an option reachable from the GUI to do this.
It is not good to waste many users's time by spending unnecessary time on boot up.
I hope you will make an update to include this option or at least in
the next release.
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