On Fri, Jun 30, 2017 at 4:14 PM, TranceWorldLogic . < tranceworldlogic@gmail.com> wrote:
Hi Yaniv,
I have enabled random generator in cluster and also in VM. But still not see any improvement in throughput.
lsmod | grep -i virtio virtio_rng 13019 0
Are you sure it's being used? What is the qemu command line (do you see the device in the guest?)
virtio_balloon 13834 0 virtio_console 28115 2 virtio_blk 18156 4 virtio_scsi 18361 0 virtio_net 28024 0 virtio_pci 22913 0 virtio_ring 21524 7 virtio_blk,virtio_net,virtio_ pci,virtio_rng,virtio_balloon,virtio_console,virtio_scsi virtio 15008 7 virtio_blk,virtio_net,virtio_ pci,virtio_rng,virtio_balloon,virtio_console,virtio_scsi
Would please check do I missing some virtio module ?
One more finding, if I set queue property in vnic profile then I got good throughput.
Interesting - I had assumed the bottleneck would be the encryption/decryption process, not the network. What do you set exactly? Does it matter in non-encrypted traffic as well? Are the packets (and the whole communication) large or small (i.e, would jumbo frames help) ? Y.
Thanks, ~Rohit
On Fri, Jun 30, 2017 at 12:11 AM, Yaniv Kaul <ykaul@redhat.com> wrote:
On Thu, Jun 29, 2017 at 4:02 PM, TranceWorldLogic . < tranceworldlogic@gmail.com> wrote:
Got it, just I need to do modprobe to add virtio-rng driver. I will try with this option.
Make sure it is checked on the cluster. Y.
Thanks for your help, ~Rohit
On Thu, Jun 29, 2017 at 6:20 PM, TranceWorldLogic . < tranceworldlogic@gmail.com> wrote:
Hi,
I am using host as Centos 7.3 and guest also centos 7.3 it have 3.10 kernel version.
But I not see virtio-rng in guest VM. Is this module come with kernel or separately I have to install ?
Thanks, ~Rohit
On Thu, Jun 29, 2017 at 5:28 PM, Yaniv Kaul <ykaul@redhat.com> wrote:
On Thu, Jun 29, 2017 at 10:07 AM, TranceWorldLogic . < tranceworldlogic@gmail.com> wrote:
Hi,
To increase network throughput we have changed txqueuelen of network device and bridge manually. And observed improved throughput.
Interesting, as I've read the default (1000) should be good enough for 10g, for example.
Are you actually seeing errors on the interface (overruns) and such?
But in ovirt I not see any option to increase txqueuelen.
Perhaps use ifup-local script to set it when the interface goes up?
Can someone suggest me what will be the right way to increase throughput ?
Note: I am trying to increase throughput for ipsec packets.
For ipsec, probably best to ensure virtio-rng is enabled. Y.
Thanks, ~Rohit
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