On 2008-02-26, Kent Watsen <[EMAIL PROTECTED]> wrote: > I just installed a Netgear GA311 (re) into a 500MHz Netra T1 running 4.2 > (sparc64) > > Running `iperf -s` on it shows only 187 Mbits/sec, which surprised me > because other iperf-targets plugged into same switch show ~600 Mbits/sec > > Looking at `top` shows why: 31% system, 69% interrupt, 0% idle and the > iperf process 25% CPU > > What is going on? - is the re driver not good?
What's going on is that your machine is busy processing interrupts. If you want higher performance from what is a fairly slow machine, you really want a nic with interrupt mitigation. (as for the next question you'll have after reading that: search the archives...)
