Re: How to enable DMA at boot time
On Sun, Dec 01, 2002 at 07:23:03PM -0600, Shyamal Prasad wrote:
> 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 ;-)
Is this a feature of the prepackaged kernel setup then? I'm running
2.4.18 compiled straight from the original www.kernel.org source with
no "Debianisation". I have what I consider to be a lot of modules:
Module Size Used by
ppp_deflate 40704 0 (autoclean)
ppp_async 6224 0 (autoclean)
ppp_generic 15312 0 (autoclean) [ppp_deflate ppp_async]
slhc 4416 0 (autoclean) [ppp_generic]
soundcore 3472 0 (autoclean)
sd_mod 10016 2 (autoclean)
vfat 9776 1 (autoclean)
nls_iso8859-1 2848 2 (autoclean)
sr_mod 13360 4 (autoclean)
cdrom 28192 0 (autoclean) [sr_mod]
isofs 17104 2 (autoclean)
nls_cp437 4352 4 (autoclean)
msdos 4880 1 (autoclean)
fat 30944 0 (autoclean) [vfat msdos]
ide-scsi 7440 2
aic7xxx 110768 1
scsi_mod 78608 4 [sd_mod sr_mod ide-scsi aic7xxx]
but the "Calculating module dependencies" step flashes by so fast I
can't see it. In fact the only bit I can read is the spinning up of my
SCSI disks. Do I guess correctly that the difference is because the
prepackaged kernel has zillions of modules and takes ages to work out
which ones it doesn't need, whereas mine has few more than the above
list? So you might be able to speed things up by hiding the modules
you don't need?
Pigeon
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