Followup to: <3964E2EB.C338FAB@timpanogas.com>
By author: "Jeff V. Merkey" <jmerkey@timpanogas.com>
In newsgroup: linux.dev.kernel
>
> Linus,
>
> When we were putting SMP on NetWare, we discovered that using the IOAPIC
> hardware for UP systems was almost 4% faster than the 8259-PIC for LAN
> drivers (since it has a dedicated ICC bus to pass interrupt messages to
> a local APIC). Something to consider....
>
The problem is that most UP mobos don't *have* IOAPIC's... Linux will
use them if they're there (most commonly on SMP mobos with only one
slot populated, or on mobos which have UP and SMP versions.)
-hpa
-- <hpa@transmeta.com> at work, <hpa@zytor.com> in private! "Unix gives you enough rope to shoot yourself in the foot." http://www.zytor.com/~hpa/puzzle.txt- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.tux.org/lkml/
This archive was generated by hypermail 2b29 : Fri Jul 07 2000 - 21:00:21 EST