All,
Has anyone had issues with throughput on a NATed topology being
limited to almost exactly 25MB/s? (ACS 4.15.0.0 on KVM RHEL/CentOS 8.X)
E.g.
VM on hypervisor -> Virtual Router NAT -> public
I get 25MB/s when doing a /dev/shm/ file copy to a /dev/null over SCP on
a 1G network. (E.g. scp /dev/shm/bigfile publichost:/dev/null)
It isn't CPU pegged, and operates the same among VMs with different
resources (RAM/CPU) available.
The same copy from the underlying hypervisor is 112MB/s (which is fairly
ideal/normal on an unloaded 1G network.)
The same copy from the systemvm itself is also significantly slower
(40MB/s or less)
The compute offerings have no known bandwidth restrictions.
Just wondering if folks actually have achieved gigabit (or preferably
more for supporting 10G throughput.) speed from a NATed VM.
Thanks,
-Nathan McGarvey
