Hi Jian, thank you for your reply. I'm using SR-IOV, so I don't use Virtio for network, however I've tried to use configure RPS still doesn't seem to work:
Any hint? Regards, Pedro Sousa On Sat, Oct 10, 2015 at 6:47 AM, Jian Wen <wenjia...@gmail.com> wrote: > You can try either of the following methods to distributes the load of > processing received > packets and spreads them across multiple CPUs. > > Receive Packet Steering: > Optimizing EC2 Network Throughput On Multi-Core Servers > <https://engineering.pinterest.com/blog/building-pinterest-cloud> > > Multi-Queue virtio-net: > > https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/Virtualization_Tuning_and_Optimization_Guide/sect-Virtualization_Tuning_Optimization_Guide-Networking-Techniques.html > > On Tue, Sep 29, 2015 at 5:49 AM, Pedro Sousa <pgso...@gmail.com> wrote: > >> Hi all, >> >> I'm trying to deploy some nfv apps on my Openstack deployment, however >> I'm having some performance issues in my VMs, that start to lose UDP >> packets at a specific packet transmission rate. >> >> Here's what I've tried and found so far: >> >> - VMs Centos 7.1 with 10GBe Neutron SR-IOV nics >> - Configured Memory Hugepages: >> http://redhatstackblog.redhat.com/tag/huge-pages/ >> - Configured CPU Pinning and NUMA Topology: >> - Increased memory network buffers in kernel >> - Running "egrep ens6 /proc/interrupts" I see network Interrupts are not >> balanced evenly inside my guest across CPU cores, always hitting the same >> CPU. >> >> Concerning this last issue does anybody have some good advices on how to >> tackle this, how can I share the network load across the vcpus inside the >> guest or am I looking in the wrong direction? >> >> Some pointers would be appreciated. >> >> Regards, >> Pedro Sousa >> >> >> >> _______________________________________________ >> OpenStack-operators mailing list >> OpenStack-operators@lists.openstack.org >> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators >> >> > > > -- > Best, > > Jian >
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