On Tue, Sep 15, 2020 at 5:02 PM Ravin Ya <ravin.ya90(a)gmail.com> wrote:
Please advice. Any help will be highly appreciated. Thank you in advance.
oVirt Centos 7.8 Virtulization Host
Guest VM Centos 7.8 (Mutiqueue enabled 6 vCPUs with 6 Rx Tx Queues)
The vCPUs are configured for host pass through (Pinned CPU).
The Guest VM runs the application in userspace. The Application consists
of the parent process that reads packets in raw socket mode from the
Is this interface a virtual NIC? If so, please ensure to disable network
filtering on the used vNIC profile before starting the VM.
If there is a way to use SR-IOV/ passthrough vNIC profile, this would
provide nearly bare metal performance of the virtual NIC.
and forwards then to child processes (~vCPUs) via IPC (shared memory
pipes). The performance (throughput / CPU utilization) that I get with KVM
is half of what I get with VMware.
Any thoughts on the below observations? Any suggestions?
KVM Guest VMs degraded performance when running multi-process applications.
High FUTEX time (Seen on the Guest VM when passing traffic).
High SY: System CPU time spent in kernel space (Seen on both Hypervisor
and the Guest VMs only when running my application.)
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