Re: How to enable DMA at boot time
"Clive" == Clive Standbridge <email@example.com> writes:
Clive> On Thu 28 Nov 2002 22:45:39 +0000(-0600), Shyamal Prasad
>> Hmmmm...that is a truly interesting measure. Since I rarely
>> boot my machine I've never looked at DMA as a way of speeding
>> up the boot sequence. Cool. I feel like I've learned a whole
>> new view of things :-)
Clive> I'm not sure whether a sarcastic overtone was intended, but
Clive> I like it anyway. :-)
No sarcasm intended at all! I thought it was a really cool idea for
machines I do boot frequently (laptops).
>> I'm curious now: how many seconds to when your root FS is
>> mounted? That would determine the upper bound on the
Clive> 5 seconds. hwtools runs after 46 seconds.
>> Is most of the time spent building module dependencies?
Clive> How would I measure that?
If you are using one of the pre-packaged 2.4.x kernels from Debian
then it will be modular. During boot you will see a "Calculating
module dependencies...." message followed by much disk whirring. For
me, this is the single slowest step during a boot. I just measure it
with a stop watch (actually, I count seconds ;-)