https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=264198
Bug ID: 264198
Summary: bhyve: very slow network with IPFW, virtio and Vlan on
12.3-RELEASE-p5
Product: Base System
Version: 12.3-RELEASE
Hardware: Any
OS: Any
Status: New
Severity: Affects Only Me
Priority: ---
Component: bhyve
Assignee: [email protected]
Reporter: [email protected]
Hello,
after upgrading machines from 12.2 to 12.3 I experienced very slow network
connection on virtual machines when activating ipfw on the host system. With
12.2 there was no problem.
Description of the affected setup:
* HostA and HostB, both FreeBSD 12.3, one NIC
* VmA (on HostA) and VmB (on HostB), both with virtio-net.
HostA and HostB are connected to a Switch with vlans. For me everything behind
the NIC is a blackbox.
vlan MTU is 1400. On both hosts there is a bridge, with the vlan-interface and
the tap of the vm.
HostA and HostB:
igb0---igb0.4030---bridge4030---tap0
On HostA and B there ist only one ipfw rule:
65535 allow ip from any to any
Measurement of thoughput:
VmA # nc -v -l 2222 > /dev/null
VmB # nc -v vma 2222
Connection to jails-staging-1.beju-hh.de 2222 port [tcp/*] succeeded!
6+0 records in
6+0 records out
6291456 bytes transferred in 19.360484 secs (324964 bytes/sec)
this is 317kbytes/s
If I deactivate the ipfw firewall on HostA with "service ipfw stop" the
throughput increases to 21Mbytes/s.
I tried to solve it by deactivating options with:
ifconfig igb0 -txcsum -rxcsum -txcsum6 -rxcsum6 -tso4 -tso6 -vlanhwtso
-vlanhwcsum
but this could not solve the problem.
regards
Ole
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