[dpdk-users] Poor OVS-DPDK performance

abhishek jain ashujain9727 at gmail.com
Fri Dec 8 10:33:39 CET 2017


Hi Team

Below is my OVS configuration..

root at node-3:~# ovs-vsctl get Open_vSwitch . other_config
{dpdk-init="true", dpdk-lcore-mask="7fe", dpdk-socket-mem="1024",
pmd-cpu-mask="1800"}
root at node-3:~#

root at node-3:~#
root at node-3:~# cat /proc/cmdline
BOOT_IMAGE=/vmlinuz-3.13.0-137-generic root=/dev/mapper/os-root ro
console=tty0 net.ifnames=0 biosdevname=0 rootdelay=90 nomodeset
root=UUID=2949f531-bedc-47a0-a2f2-6ebf8e1d1edb iommu=pt intel_iommu=on
isolcpus=11,12,13,14,15,16

root at node-3:~#
root at node-3:~# ovs-appctl dpif-netdev/pmd-stats-show
main thread:
        emc hits:2
        megaflow hits:0
        miss:2
        lost:0
        polling cycles:99607459 (98.80%)
        processing cycles:1207437 (1.20%)
        avg cycles per packet: 25203724.00 (100814896/4)
        avg processing cycles per packet: 301859.25 (1207437/4)
pmd thread numa_id 0 core_id 11:
        emc hits:0
        megaflow hits:0
        miss:0
        lost:0
        polling cycles:272926895316 (100.00%)
        processing cycles:0 (0.00%)
pmd thread numa_id 0 core_id 12:
        emc hits:0
        megaflow hits:0
        miss:0
        lost:0
        polling cycles:240339950037 (100.00%)
        processing cycles:0 (0.00%)
root at node-3:~#

root at node-3:~#
root at node-3:~# grep -r Huge /proc/meminfo
AnonHugePages:     59392 kB
HugePages_Total:    5126
HugePages_Free:     4870
HugePages_Rsvd:        0
HugePages_Surp:        0
Hugepagesize:       2048 kB
root at node-3:~#

I'm using OVS version 2.4.1

Regards
Abhishek Jain

On Fri, Dec 8, 2017 at 11:18 AM, abhishek jain <ashujain9727 at gmail.com>
wrote:

> Hi Team
>
>
> Currently I have OVS-DPDK setup configured on Ubuntu 14.04.5 LTS. I'm also
> having one vnf with vhost interfaces mapped to OVS bridge br-int.
> However when I'm performing throughput with the same vnf,I'm getting very
> less throughput.
>
> Please provide me some pointers to boost the performance of vnf with
> OVS-DPDK configuration.
>
> Regards
> Abhishek Jain
>


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