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SubjectRe: lowlatency 2.2.19

Le 05-Jun-2001, Andrew Morton écrivait :
> Some video cards have a PCI cheat-mode in which they keep
> the PCI bus busy until they are ready to accept new
> commands, rather forcing a retry. Figures of up to
> twenty milliseconds have been mentioned. Your X server
> *may* support the `PCIRetry' config option which will
> defeat this.

Just FYI (I think it's S3 Virge specific, but maybe not), I solved my RX
packets loss on my ADSL interface after I read the message

http://www.xfree86.org/pipermail/xpert/2000-November/003402.html

and used

Section "Device"
Identifier "Generic Video Card"
Driver "s3virge"
Option "fpm_vram"
Option "fifo_aggressive"
Option "pci_burst" "on"
Option "pci_retry" "on"
Option "XaaNoCPUToScreenColorExpandFill"
EndSection

in my XFConfig-4.

(The whole thread seems to be worth a read.)

Best regards,
Pierre.


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