Re: DEVFS_FS

[Gene Heskett <gene.heskett@verizon.net>]

On Wednesday 10 November 2004 19:19, Greg KH wrote:
>On Wed, Nov 10, 2004 at 07:06:37PM -0500, Gene Heskett wrote:
>> On Wednesday 10 November 2004 16:03, Alexandre Costa wrote:
>> >On Wed, 10 Nov 2004 15:46:06 -0500 (EST), linux-os
>> >
>> ><linux-os@chaos.analogic.com> wrote:
>> >> What is the approved substitute for DEVFS_FS that is marked
>> >> obsolete?
>> >
>> >udev
>> >http://www.kernel.org/pub/linux/utils/kernel/hotplug/udev.html
>>
>> Humm, I'm not sure I'm entirely happy with that choice.  I have an
>> FC3RC5 install on an old P-II running at 233mhz, and the udev
>> start in the bootup is the slowest single thing to get started by
>> an order of magnitude.
>>
>> Can someone tell me a good reason udev wastes as much time as the
>> post does checking 383 megs of memory, which is very nearly a
>> minute even just for udev?
>
>It's all up to the rules you are using for udev.  If you have udev
> rules that call out to scripts for every device (like I think the
> SuSE default install does), udevstart can take a long time.
>
This is a box stock FC3RC5 install, Greg.  I haven't touched a thing 
in how it works because I don't know anything about it, other than 
its about 1/3rd of the total boot time.

>If you don't have any external dependancies, udevstart is fast.
>
>> If its to be used, its got to speed itself up, a LOT!.
>
>Please post what version of udev you are using, and what your udev
> rules file looks like.

Probably see the FC3 release, but I don't know how much diff there is 
between RC5 and the final, rsync is trying to convert mine to final 
right now.  Where is this rules file?

>thanks,
>
>greg k-h

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