Eugene Grosbein wrote:
On Mon, Oct 05, 2009 at 07:30:15PM +0500, rihad wrote:
How do I investigate and fix this burstiness issue?
Please also show:
sysctl net.isr
sysctl net.inet.ip.intr_queue_maxlen
net.isr.swi_count: 65461359
net.isr.drop: 0
net.isr.queued: 32843752
net.isr.deferred: 0
net.isr.directed: -723075002
net.isr.count: -723074001
net.isr.direct: 1
net.inet.ip.intr_queue_maxlen: 50
Try to increase net.inet.ip.intr_queue_maxlen uptio 4096.
Apparently increasing the input queue had no effect on the output drops.
Besides, net.inet.ip.intr_queue_drops has only reached 70 for 6 days of
uptime.
I'll soon be rebooting to change HZ 1000 -> 2000, and we'll see how that
goes. There must be some global limit, not nmbclusters, not per-user
output queues, not the interface input queue, but something else that
triggers at around 360-370 mbit/s...
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