Re: route cache DoS testing and softirqs

On Tue, 30 Mar 2004 23:14:50 +0200
Andrea Arcangeli [off-list ref] wrote:

quoted

There are no hardirqs in the case under investigation, remember?

no hardirqs? there must be tons of hardirqs if ksoftirqd never runs.

NAPI should be kicking in for this workload, and I know for a fact it is
for Robert's case.  There should only be a few thousand hard irqs per
second.

Until the RX ring is depleted the device's hardirqs will not be re-
enabled.