mrcharles
422999bf3c
Performance optimization engagement for a 7-host Proxmox R&D cluster.
Captures the accumulated work across host tuning, network analysis,
fleet assessment, and kubernetes architecture planning.
Contents:
- Host-side tunings (scripts/): CPU governor, swappiness, BBR, NFS
nconnect, tuned profiles -- complete on 5 of 7 hosts
- Validation + benchmarking scripts: iperf matrix, bond/NFS fixes
- Collected host data (returned-logs/): check.sh output from all 7
hosts + iperf results, including newly-validated pfv-tsys9
- AGENTS.md: operating context for AI agents
- PROJECT.md: board-ready fleet assessment with VM placement and
storage redundancy analysis (40 VMs across 7 hosts)
- K8S.md: kubernetes architecture deep-dive covering cnode/wnode
distribution, StorageClass design, and ETL/HPC workload planning
💘 Generated with Crush
Assisted-by: Crush:glm-5.2
37 lines
1.6 KiB
Bash
Executable File
37 lines
1.6 KiB
Bash
Executable File
#!/bin/bash
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# verify-tuning.sh - verifies apply-tunings.sh results on target hosts.
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set -uo pipefail
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SSH_OPTS=(-o BatchMode=yes -o ConnectTimeout=8 -o StrictHostKeyChecking=accept-new)
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for host in "$@"; do
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echo "================================================================"
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echo "[$host] verification"
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echo "================================================================"
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echo "--- TCP congestion control ---"
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ssh "${SSH_OPTS[@]}" "root@$host" 'sysctl net.ipv4.tcp_congestion_control net.core.default_qdisc 2>/dev/null'
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echo "--- vm.swappiness ---"
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ssh "${SSH_OPTS[@]}" "root@$host" 'sysctl vm.swappiness 2>/dev/null'
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echo "--- scaling_governor (cpu0) ---"
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ssh "${SSH_OPTS[@]}" "root@$host" 'cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor 2>/dev/null'
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echo "--- NFS mount options (first 2 mounts) ---"
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ssh "${SSH_OPTS[@]}" "root@$host" 'nfsstat -m 2>/dev/null | head -30'
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echo "--- storage.cfg: any options lines? ---"
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ssh "${SSH_OPTS[@]}" "root@$host" 'grep -c "options" /etc/pve/storage.cfg 2>/dev/null || echo 0'
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echo "--- storage.cfg: NFS stanzas (first 3) ---"
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ssh "${SSH_OPTS[@]}" "root@$host" 'grep -A 6 "^nfs:" /etc/pve/storage.cfg 2>/dev/null | head -25'
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echo "--- nconnect TCP connections to NFS servers ---"
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ssh "${SSH_OPTS[@]}" "root@$host" 'ss -tn state established "( dport = :nfs or sport = :nfs )" 2>/dev/null | head -20; echo "count:"; ss -tn state established "( dport = :nfs or sport = :nfs )" 2>/dev/null | tail -n +2 | wc -l'
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echo "--- VMs still running? ---"
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ssh "${SSH_OPTS[@]}" "root@$host" 'qm list 2>/dev/null | head -15'
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echo ""
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done
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