On Mon, Nov 13, 2006 at 05:33:24PM +0100, Oliver Fromme wrote: > If it's really only a web server, then you probably don't > need the USB ports. In that case you should remove ohci > and ehci from your kernel. The USB interrupt handler is > quite heavy-weight, so it can have a noticeable impact if > the interrupt is shared with other devices.
I'll agree with this (re: webservers not needing USB), except in regards to one item: keyboards. More and more x86 PCs these days are expecting keyboards to be USB-based. Yes, PS/2 ports are still present on most (but not all) motherboards, but eventually that will be phased out. I like the idea of being able to go to my co-location facility and plug in a USB keyboard to begin working on a server, and when finished remove the keyboard and leave. PS/2 was never intended to be hot-swappable, and as I'm sure many can attest to, removing or adding a PS/2 keyboard is generally frowned upon (it works here, it doesn't work there, etc.). I've seen some recent commits to the keyboard code which address being able to plug in a PS/2 keyboard while the machine is powered on (thus not having to reboot), for what it's worth. Summary: ukbd is one reason USB is useful on servers. -- | Jeremy Chadwick jdc at parodius.com | | Parodius Networking http://www.parodius.com/ | | UNIX Systems Administrator Mountain View, CA, USA | | Making life hard for others since 1977. PGP: 4BD6C0CB | _______________________________________________ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "[EMAIL PROTECTED]"
