On Tue, 2017-08-15 at 18:30 +0200, Paweł Staszewski wrote: > Hi > > > Doing some tests i discovered that when traffic is send by pktgen to > forwarding host where nexthop for destination network on forwarding > router is not reachable i have 100% cpu on all cores and perf top show > mostly: > > 77.19% [kernel] [k] queued_spin_lock_slowpath > 10.20% [kernel] [k] acpi_processor_ffh_cstate_enter > 1.41% [kernel] [k] queued_write_lock_slowpath >
To the rescue (for us to help) perf record -a -g sleep 10 perf report --stdio
