Fedora 10 - Boot Analysis

[Harald Hoyer]

Hans de Goede wrote:
> Harald Hoyer wrote:
>> Arjan van de Ven wrote:
>>> On Mon, 15 Dec 2008 15:47:32 +0100
>>> Harald Hoyer <harald at redhat.com> wrote:
>>>
>>>> http://www.harald-hoyer.de/personal/blog/fedora-10-boot-analysis
>>>>
>>>> A brief Fedora 10 boot analysis.
>>>>
>>>> To reach the 20 Second Startup Feature 
>>>
>>> this begs the question, and you knew I as going to ask ;), if Fedora
>>> wants to reach the 5 second boot that is quite possible on this
>>> hardware, even without too insane compromises.
>>> (which translates to something like 2 to 3 seconds on a full sized
>>> laptop-with-ssd)
>>>
>>> If not, I would regret that but it's not something I would have to live
>>> without; I can get a fast boot myself quite fine. If so, something 
>>> needs to happen NOW for F11, with a real serious push
>>> for this. It'll involve quite a few people and quite a few packages
>>> that need to get things right, but it's not at all impossible nor does
>>> it require impossible-for-fedora compromises.
>>>
>>>
>>
>> Push your kernel patches, so we have a kernel fast boot and sreadahead.
>> Persuade our kernel maintainer to compile more modules in the kernel.
>>
>> But, we can't / don't want to drop gnome and most other services, you 
>> dropped to reach 5 seconds.
>>
> 
> I agree with not dropping gnome :) But if we want faster startup we 
> really should be taking a serious look at trimming startup services.
> 
> Some ideas:
> 1) Make more services not start when not needed, for example bluetooth 
> when there is no bluetooth hardware, etc. We could even completely stop 
> them from being a service controlled by runlevel and make them be 
> started from udev instead.

right, directly (and as an upstart event "/sbin/start bluetooth") or via 
HAL/DeviceKit

> 
> 2) Load some services after gdm is up, for example cron, anacron, at,
> setroubleshootd

or start them in parallel via upstart

> 
> 3) Outright remove some services from the default started set, such as a
> certain local mta.
> 
> Regards,
> 
> Hans
>