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PROX snapshot output for VSPERF Intel Pod 12, Node 4 (the Device Under Test, DUT, for the Long Duration and Cross-NUMA Node testing).
[opnfv@pod12-node4 ~]$ sudo ./prox -k -f ../config/irq.cfg
In this PROX which essentially measures the duration of a 1 nanosecond heartbeat, it is clear that some process is producing fairly frequent interrupts that cause delays in the 10-50 usec and 50-100usec range on core 6. Also, Core 11 has some interrupts in the 10-50usec range: it is important to check this when the VSPERF deployment is running (for example, the BSwLV OVS-Vanilla config has:
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https://www.net.in.tum.de/fileadmin/bibtex/publications/papers/NetSys2015.pdf
PROX config: ./samplevnf/VNFs/DPPD-PROX/config/irq.cfg
[opnfv@pod12-node4 config]$ cat irq.cfg
;;
;; Copyright (c) 2010-2017 Intel Corporation
;;
;; Licensed under the Apache License, Version 2.0 (the "License");
;; you may not use this file except in compliance with the License.
;; You may obtain a copy of the License at
;;
;; http://www.apache.org/licenses/LICENSE-2.0
;;
;; Unless required by applicable law or agreed to in writing, software
;; distributed under the License is distributed on an "AS IS" BASIS,
;; WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
;; See the License for the specific language governing permissions and
;; limitations under the License.
;;
[eal options]
-n=4 ; force number of memory channels
no-output=no ; disable DPDK debug output
[global]
start time=5
name=Interrupt (4x)
[core 0s0]
mode=master
[core 1s0-21s0]
name=irq
task=0
mode=irq
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