krunkit: Disable offloading for faster networking
krunkit-1.0.0[1] allows disabling offloading for faster networking. Keep
the Offloading option in case offloading is improved in future versions
or we want to add a flag to use int for specific workload.
Testing shows 6.7 times faster network performance, and 9p mount
is 3 times faster.
Starting cluster:
% minikube start --driver krunkit --container-runtime containerd
😄 minikube v1.36.0 on Darwin 15.6 (arm64)
✨ Using the krunkit (experimental) driver based on user configuration
👍 Starting "minikube" primary control-plane node in "minikube" cluster
🔥 Creating krunkit VM (CPUs=2, Memory=6144MB, Disk=20000MB) ...
📦 Preparing Kubernetes v1.33.2 on containerd 1.7.23 ...
🔗 Configuring bridge CNI (Container Networking Interface) ...
🔎 Verifying Kubernetes components...
▪ Using image gcr.io/k8s-minikube/storage-provisioner:v5
🌟 Enabled addons: default-storageclass, storage-provisioner
🏄 Done! kubectl is now configured to use "minikube" cluster and "default" namespace by default
Testing iperf3:
% kubectl apply -f iper3-server.yaml
deployment.apps/iperf3 created
service/iperf3 created
% kubectl get deploy iperf3
NAME READY UP-TO-DATE AVAILABLE AGE
iperf3 1/1 1 1 9s
% kubectl get service iperf3
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
iperf3 NodePort 10.105.127.180 <none> 5201:30201/TCP 17s
% iperf3 -c $(minikube ip) -p 30201
Connecting to host 192.168.105.10, port 30201
[ 5] local 192.168.105.1 port 50630 connected to 192.168.105.10 port 30201
[ ID] Interval Transfer Bitrate
[ 5] 0.00-1.00 sec 1.05 GBytes 9.03 Gbits/sec
[ 5] 1.00-2.01 sec 1.09 GBytes 9.29 Gbits/sec
[ 5] 2.01-3.01 sec 1.06 GBytes 9.09 Gbits/sec
[ 5] 3.01-4.00 sec 1.08 GBytes 9.33 Gbits/sec
[ 5] 4.00-5.00 sec 1.08 GBytes 9.31 Gbits/sec
[ 5] 5.00-6.00 sec 1.07 GBytes 9.23 Gbits/sec
[ 5] 6.00-7.00 sec 1.09 GBytes 9.35 Gbits/sec
[ 5] 7.00-8.01 sec 1.08 GBytes 9.20 Gbits/sec
[ 5] 8.01-9.00 sec 1.07 GBytes 9.18 Gbits/sec
[ 5] 9.00-10.01 sec 1.08 GBytes 9.28 Gbits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bitrate
[ 5] 0.00-10.01 sec 10.7 GBytes 9.23 Gbits/sec sender
[ 5] 0.00-10.01 sec 10.7 GBytes 9.23 Gbits/sec receiver
Testing 9p mount:
% minikube mount ~/models:/mnt/models
📁 Mounting host path /Users/nir/models into VM as /mnt/models ...
▪ Mount type: 9p
▪ User ID: docker
▪ Group ID: docker
▪ Version: 9p2000.L
▪ Message Size: 262144
▪ Options: map[]
▪ Bind Address: 192.168.105.1:50614
🚀 Userspace file server:
ufs starting
✅ Successfully mounted /Users/nir/models to /mnt/models
📌 NOTE: This process must stay alive for the mount to be accessible ...
$ time cat /mnt/models/DeepSeek-R1-0528-Qwen3-8B-Q4_K_M.gguf >/dev/null
real 0m10.219s
user 0m0.007s
sys 0m0.263s
[1] https://github.com/containers/krunkit/releases/tag/v1.0.0
890003c584