On Sat Apr 5 03:58:14 EDT 2014, [email protected] wrote:
> Eric,
>
> I reported I had no problem to use pcpae kernel so far.
> This time, I must report a problem.
>
> I switched from 1CPU mode to 2CPU mode, and have
> problem of too much high speed of keyboard input,
> like aaaaaaaaaaa when I typed only one 'a'.
>
> Please check this, I want to use pcpae kernel for
> CPU server soon.
i assume this is a usb keyboard, and happens on
any key? and i'll assume that you're using 9atom's
usb/usbd built recently. is this what you're doing?
can you run sos/sos and copy or email the output?
sos itself gives instructions.
also, check with a watch that sleep 10 or sleep 60
tracks correctly.
i'm fairly confident in the usb/kb repeat process itself.
i rewrote it because i was frustrated with this very
problem. you are using usb and 9atom's usb/kb, right?
the repeat mechanism is in /sys/src/cmd/usb/kb/kb.c:^/repeatproc
and :^/repeattimerproc. the initial repeat delay
is 500msec, and the subsequent delay is 30ms.
which should be 33 repeats/sec.
sources uses 160 and 25 (!) and warns
* Rewrite instead of debug, if needed.
you can verify the repeat rate tracks correctly with the
system clock by running clock -s in one window and
typing
echo <tick>| freq
hold down the 'a' where <tick> is for 10s exactly.
we would expect
1 + 9.5*(1000/30) = 317 'a's
on my machine, i get about 270-280. likely because
kbin is unbuffered.
- erik
