On Tue, Jan 4, 2022 at 1:03 PM Ilya Maximets <[email protected]> wrote: > > +AT_SETUP([dpif-netdev - MFEX Configuration]) > > +AT_SKIP_IF([! $PYTHON3 -c "import scapy"], [], []) > > +OVS_VSWITCHD_START( > > + [add-port br0 p1 \ > > + -- set Open_vSwitch . other_config:pmd-cpu-mask=0xC \ > > + -- set interface p1 type=dummy-pmd]) > > This test and others in here need a dummy-numa configured. > 2 reasons for that: > > 1. We're asking for 4 CPU cores here (0xC), so the test will not work > as expected on a smaller system (e.g. GHA). > > 2. Without dummy-numa real CPU affinity will be applied. In that > case during the parallel test execution threads from different tests > will be scheduled on same cores. Dummy-numa fakes the CPU affinity > allowing the kernel to re-schedule pmd threads to different cores > better utilising system resources.
Ack. -- David Marchand _______________________________________________ dev mailing list [email protected] https://mail.openvswitch.org/mailman/listinfo/ovs-dev
