ja
54ab23dce9
- Created crash analysis for 2026-03-17 OOM event. - Documented stability test results and memory tuning effects. - Added PARA-structured workflows for EOD protocol. - Updated workstation health report for current 16GB swap status.
51 lines
2.2 KiB
Markdown
51 lines
2.2 KiB
Markdown
---
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description: >-
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Detailed performance optimization strategies, kernel parameter tuning, and
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system maintenance routines for the mw-pfeddersheim-workstation.
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tags:
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- performance
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- optimization
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- kernel-tuning
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- maintenance
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last_updated: '2026-03-17'
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---
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# mw-pfeddersheim-workstation Performance Tuning
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## Overview
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This document tracks optimization decisions, system tuning parameters, and cleanup routines implemented for the workstation to ensure maximum resource efficiency and stability.
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## Current System State (2026-02-27)
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- **CPU**: AMD/Intel (High core count assumed from load distribution)
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- **RAM**: 64GB
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- **Storage**: NVMe (77% usage detected)
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- **OS**: Manjaro/Arch Linux
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## Optimization Strategies
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### 1. Kernel Parameter Tuning (Ansible)
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- **vm.swappiness**: Set to `10` to prefer RAM over swap on the 64GB machine.
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- **fs.inotify.max_user_watches**: Increase to `524288` for IDEs and build tools.
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- **vm.vfs_cache_pressure**: Set to `50` to improve filesystem cache retention.
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- **systemd-oomd**: Enabled to prevent system-wide hangs during severe memory pressure (User-space OOM killer).
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- **zswap**: Enabled via GRUB to provide compressed swap cache, improving performance when swapping is necessary.
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### 2. Docker Resource Management
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- **Memory Limits**: Implemented `mem_limit` on critical containers (Firebird: 4G, Mailpit: 512M) to prevent runaway processes from consuming entire system memory.
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### 2. Storage & Filesystem Cleanup
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- **Docker**: Automated pruning of unused images and volumes via `scripts/maintenance.sh`.
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- **Journald**: Vacuuming logs older than 7 days or exceeding 500MB.
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- **Package Manager**: Maintaining only the last 2 versions of packages in the cache.
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### 3. Service Optimization
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- **Ananicy**: (Optional) Use Ananicy-cpp for automatic process prioritizing.
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## Implementation Log
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| Date | Type | Description |
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|------|------|-------------|
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| 2026-02-27 | Initial | Initial tuning document and strategy established. |
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| 2026-02-27 | Audit | Performed system inspection: Boot time 33.8s, RAM usage 6.5GB/62GB, identified KVM and UVC errors. |
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| 2026-03-17 | Stability | Enabled `systemd-oomd` and `zswap`, added Docker memory limits following system hang analysis. |
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