Re: RFC: issues concerning the next NAPI interface

Rick Jones
2007-08-24T17:09:36Z

> Just to be clear, in the previous email I posted on this thread, I
> described a worst-case network ping-pong test case (send a packet, wait
> for reply), and found out that a deffered interrupt scheme just damaged
> the performance of the test case. Since the folks who came up with the
> test case were adamant, I turned off the defferred interrupts.
> While defferred interrupts are an "obvious" solution, I decided that
> they weren't a good solution. (And I have no other solution to offer).

Sounds exactly like the default netperf TCP_RR test and any number of other
benchmarks. The "send a request, wait for reply, send next request, etc etc
etc" is a rather common application behaviour afterall.

rick jones