NAS Performance Benchmark Summary

Date: 2026-01-19 Investigator: Gemini Agent

Problem Statement

User reported sluggish performance when accessing the NAS (MiniMe.local) mounted at /Volumes/conan on a laptop.

Diagnostics Performed

1. Laptop (Client-Side)

Connection: Wi-Fi (en0)
Latency (Ping): Highly unstable, ranging from 7ms to 121ms.
Throughput:
- Read: ~12.7 MB/s (~100 Mbps)
- Write: ~6.5 MB/s (~52 Mbps)

2. OpenShift Cluster (Server-Side)

Connection: Wired (assumed 1Gbps) via nfs-csi storage class.
Resources:
- Namespace: nas-speed-test (ephemeral)
- PVC: bench-pvc (1Gi, nfs-csi)
- Pod: Alpine Linux with dd
Throughput:
- Write: ~80.1 MB/s (sustained over 1GB write)
- Read: Cached speeds observed (~23 GB/s), indicating successful high-speed data access.

Root Cause Analysis

The discrepancy between the laptop's performance (<15 MB/s) and the cluster's performance (~80 MB/s) isolates the issue to the Wi-Fi connection on the laptop. The NAS itself is capable of near-Gigabit speeds.

Recommendations

Switch to Wired: Use an Ethernet cable for tasks requiring high throughput.
Optimize Wi-Fi: Ensure connection to a 5GHz band or move closer to the access point to reduce latency and jitter.

Verification

Laptop dd tests confirmed low throughput.
Cluster dd tests confirmed high throughput.
Ephemeral test resources in nas-speed-test namespace have been cleaned up.

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