very common kernel modules slow down the boot process

[Chris Snook]

Harald Hoyer wrote:
> Compiling these modules, which are loaded on nearly every PC, in the 
> kernel cuts down my boot time from 42s to 32s on my computer:
> 
> ata_generic
> ata_piix
> cdrom
> dm_mirror
> dm_mod
> dm_snapshot
> dm_zero
> ehci_hcd
> ext3
> floppy
> i2c_core
> jbd
> libata
> mbcache
> ohci_hcd
> parport
> parport_pc
> pata_acpi
> scsi_mod
> sd_mod
> sg
> snd
> snd_mixer_oss
> snd_page_alloc
> snd_pcm
> snd_pcm_oss
> snd_seq
> snd_seq_device
> snd_seq_dummy
> snd_seq_midi_event
> snd_seq_oss
> snd_timer
> soundcore
> sr_mod
> uhci_hcd
> 

It also makes it much more difficult to troubleshoot those subsystems or 
work around their quirks.  I wouldn't have a problem with ext3, jbd, or 
dm_* being built-in, but anything that deals with hardware should really 
be modular.  Of course, that wipes out most of your list.

I'd really rather focus on optimizing modprobe than sacrificing the many 
benefits of modularity for a very small performance boost.

-- Chris