Re: [ANNOUNCE] udev 0.1 release

Greg KH
2003-04-11T22:44:35Z

On Fri, Apr 11, 2003 at 03:43:12PM -0700, Steven Dake wrote:
>
> Lars Marowsky-Bree wrote:
>
> >On 2003-04-11T15:30:21,
> > Steven Dake <sdake@mvista.com> said:
> >
> >
> >
> >>There is no "spec" that states this is a requirement, however, telecom
> >>customers require the elapsed time from the time they request the disk
> >>to be used, to the disk being usable by the operating system to be 20
> >>msec.
> >>
> >>
> >
> >Heh. Yes, I've read that spec, and some of it involves some good crack
> >smoking
> >;-) The current Linux scheduler will make that rather hard for you, you'll
> >need hard realtime for such guarantees.
> >
> Its quite easy to do if you are not dependent upon spawning an entire
> process to execute the insertion and creation even of the device node.

Then have the telcos live with the static /dev that they have today :)

There's always a price to pay for new features...

greg k-h

Happily using his "pleasure boating" version of Linux...