On Mon, 23 Jun 2008 10:48:43 -0400 (EDT) Joshua Baker-LePain <jlb17@xxxxxxxx> wrote: > On Sun, 22 Jun 2008 at 11:42am, Arjan van de Ven wrote > > > Category 3: popular/very common and makes the system more robust > > ---------------------------------------------------------------- > > Rationale: having these built in makes the system more robust, also > > in case of failure > > - ahci (default storage for all new systems; means that there the > > system always has the / device driver) > > This isn't the default for all new systems -- lots of folks boot off > SCSI/RAID. ... and then have the cdrom hang of ahci. > > > - cpufreq_ondemand (means the cpu can slow down for power/thermal) > > - acpi_cpufreq (means the cpu can slow down for power/thermal) > > Not everybody wants this -- think HPC. not everyone wants the policy on by default.. that's a whole different discussion. But even HPC wants thermal protection etc enabled. > > > Category 4: VERY popular > > ------------------------ > > Rationale: pretty much always loaded in default installs > > - snd_seq_dummy, snd_seq, snd_seq_device, > > snd_pcm, snd_timer, snd_page_alloc, snd > > Completely useless and unwanted on servers/HPC nodes. yet tends to get loaded ;) > > It seems that there's an assumption here that Fedora = desktop. > While there's obviously a lot of that, I've seen it on a fair number > of servers and it is a great fit for HPC nodes. No that wasn't my assumption actually. My assumption was that those things are either always loaded, extremely likely loaded by default or for robustness (say AHCI). I realize it won't hit 100% but... the worst case downside is a tiny bit of wasted memory. Yawn. With the upsides I mentioned in my mail.. for me it's worth the tradeoff for at least almost all of these. > -- If you want to reach me at my work email, use arjan@xxxxxxxxxxxxxxx For development, discussion and tips for power savings, visit http://www.lesswatts.org _______________________________________________ Fedora-kernel-list mailing list Fedora-kernel-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/fedora-kernel-list
