Robert Olsson wrote:
>
> Anyway. A tulip NAPI variant added mitigation when we reached "some
> load" to avoid the static interrupt delay. (Still keeping things
> pretty simple):
>
> Load "Mode"
> -------------------
> Lo 1) RxIntDelay=0
> Mid 2) RxIntDelay=fix (When we had X pkts on the RX ring)
> Hi 3) Consecutive polling. No RX interrupts.
>
Sounds good.
The difficult part is when to go from Lo to Mid. Unfortunately my tulip
card is braindead (LC82C168), but I'll try to find something usable for
benchmarking
In my tests with the winbond card, I've switched at a fixed packet rate:
< 2000 packets/sec: no delay
> 2000 packets/sec: poll rx at 0.5 ms
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This archive was generated by hypermail 2b29 : Sun Sep 15 2002 - 22:00:21 EST