Andi Kleen wrote:

quoted

Those banks really want to crank down on latency - to the point they 
start disabling interrupt coalescing.  I bet they'd toss anything out 
they could to shave another microsecond.

This change would actually likely lower their latency.

I'm guessing you mean increase their latency?  I agree, it could - 
depends entirely on the PPS in production I suspect.

rick jones

ftp://ftp.cup.hp.com/dist/networking/briefs/nic_latency_vs_tput.txt

I should probably refresh/update that one of these days