kshared folder is a file-sharing and collaboration utility focused on simplifying cross-device access and quick team sharing. Below is a concise, structured review covering key strengths, weaknesses, and recommendations.
# On the host (inside libvirt domain XML)
<filesystem type='mount' accessmode='passthrough'>
<driver type='virtiofs' queue='1024'/>
<source dir='/host/kshared'/>
<target dir='kshared_top'/>
</filesystem>
- ops/second (read/write)
- kB/s
- read/write latency (ms)
Fix broken links: Ensure your internal references still point to the right place. kshared folder top
Step 3 – Use fio to simulate load and find breaking point
kubectl exec -it <pod> -- fio --directory=/shared-folder --rw=randwrite --size=1G --name=test
apiVersion: storage.k8s.io/v1
kind: CSIDriver
metadata:
name: <your-csi-driver>
spec:
fsGroupPolicy: ReadWriteOnceWithFSType
podInfoOnMount: true
Best practices
- Standard Method: 4 context switches (user->kernel->user) + memory copy cycles.
- kshared Method: The process reads directly from the mapped memory address. Zero context switches are required for the data access itself; the CPU simply accesses the physical memory via the mapped virtual address.
| Tool | Purpose |
|------|---------|
| iostat | Monitor NFS/client I/O on node |
| nfsiostat | NFS-specific stats (latency, ops) |
| iotop | Per-process disk I/O (limited with network fs) |
| fio | Benchmark shared folder |
| kubectl exec -- df -h | Check mount usage |
| node_exporter + Prometheus | Collect NFS/client metrics |
| lsof | See which pods have files open in shared folder | Review — kshared folder (Top) kshared folder is