On Sun, 6 Oct 2002, Luigi Rizzo wrote:
> large queues to build up in other drivers. E.g. the "xl" > driver was recently reported to take a long time every second to > read some info (statistics ?) from the NIC; at 8kpps, 10ms > is roughly 80 packets, which would easily explain the drops you > are seeing. The assertion that statistics retrieval was taking up lots of time turned out to be completely false. In the past, the statistics update also triggered a MII poll, which is why the statistics interrupt seemed to be the culprit. But yes, the MII poll was taking 10ms every second until I recently committed Harti Brandt's changes to -current. Now it "only" takes 1ms, which is still too long, but hard to reduce further. The MFC will have to wait until after 4.7-release is tagged, unfortunately. Mike "Silby" Silbersack To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-net" in the body of the message
