15 Jul
2005
15 Jul
'05
7:08 p.m.
On Thu, 14 Jul 2005, fons adriaensen wrote:
[ Paul Davis ]
I wonder why /dev/rtc isn't used more than it is now. A server/library
system to provide proper timing functions can probably be hacked up
in a day. Is it just because noone has done it, or are there other
reasons?
This is the immediate arguments against having a /dev/rtc
server/client system is:
1. /proc/<something>/max-rtc-frequency must be set higher than the
default. Done automatically by the /etc/init/something script.
2. /dev/rtc is occupied and can't be used by programs reading /dev/rtc
directly: Solution: The server doesn't need to occupy /dev/rtc when
no clients are connected.
3. Trouble to set up. Not really, its just enabling an /etc/init/something
thing.
4. Security. Nah.
--
no, to make everyone happy we need the High Res
Timer patch. that avoids
the stupidity of a fixed HZ, which is so early '90s that its
embarrassing.
Agreed 100%. I just wonder about the availability of the required
chip on mainstream motherboards. My machine (2 years old now) doesn't
have it, as far as I'm able to find out. Does anyone have more
visibility on this ?