On Tue, Nov 11, 2008 at 11:25 AM, Jelle de Jong
<[EMAIL PROTECTED]> wrote:
> Phil Endecott wrote:
>> Dear All,
>>
>> debian-administration.org has published an article that I've written
>> summarising my efforts to improve the boot time of my Eee 901.  Do
>> please have a look; I'm sure many of you will have comments to add and
>> you're welcome to do so either their in the article comments, on this
>> list, or directly to me.
>>
>> Regards,  Phil.
>
> http://www.debian-administration.org/articles/620
>
> The link to the article. I read it and iI am till wondering what
> sreadahead does compared with readahead, and what is the real time
> benefit of using pre-populated /dev/ when you have your device modules
> build into the kernel.

>From what I understand, sreadahead preloads blocks not entire files as
readahead does.

A pre-populated benefit is minimal (from my tests), the real benefit
comes from not running the coldplugin events (I don't know if it is
udev, modprobe or what). But if you skip the coldplugin you need a
pre-populated /dev.

>
> When you have the modules build into the kernel the need for modprobe
> goes away for these modules, this is the biggest time improvements.

Sure.

Santi

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