tatay188 opened a new issue, #13267:
URL: https://github.com/apache/cloudstack/issues/13267
### problem
Using CS4.22.0 VPC vRouter - Routed scenario, using above 2CPUs and 2GiB
RAM, performance is not increased, we noticed similar behavior on NAT'ed VPCs
also: no Load balancer or other features besides the custom ACLs.
Using as router only with the BGP up, I created a 4CPU and 4G vRouter and a
8CPU and 8GvRouter, the performance does not improve on throughput is seems it
reaches about 800Gbps and stop there, and sometimes traffic freezes, and many
times using pipe commands make the vRouter to crash.
**This performance issue is not observed on the same configuration on
Isolated Networks.** where we reached 5Gbps to the VM.
### versions
CS 4.22.0 with 1:1 oversubscription - no Oversubscription on CPU neither on
memory
Host Ubuntu 22.4 KVM
### The steps to reproduce the bug
1. Create a routed VPC
2. use a Network Offering with 8CPU and 8GiB RAM
3. Create the custom ACL's
4. Apply, and Crete a VM
5. Test using a massive file ...
### What to do about it?
This Issue is observed on VPCs only, and is more noticeable on Routed VPCs-
Important the same test on Isolated NAT networks have no issues, we reached
5Gbps, with complex firewall configurations.
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