Re: PCI_LATENCY_TIMER brain-damage in net drivers.

Alan Cox (alan@lxorguk.ukuu.org.uk)
Sat, 3 Oct 1998 22:45:18 +0100 (BST)

> PCI latency timer values are only usefull when several devices are
> requesting the PCI bus at the same time, by allowing BUS acquisition
> latency prediction for the whole system. Setting a large value for a
> device latency timer in low level drivers is kind of ego-mania and is
> highly wrong and broken.

Ah but..

> Flame: ;-)
> People who want their system to be faster for 1 program using 1 IO
> interface at a time should use MS/DOS instead of Linux.

You need to take it up with the hardware engineers Im afraid. See the 3c59x
errata document if you are curious.

-
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/