cmd-chat/IMPROVEMENTS_RECORD.txt at ada1937ba4846477309fc6d1d4a8f72b01a9b3ec · diorwave/cmd-chat · GitHub

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Performance Improvements - Implementation Record

Branch: improve/performance-and-reliability
Date: January 27, 2026

Changes Made:

1. Message Pagination (stores.py)
   - Limited history to 50 messages
   - Reduces memory usage

2. Faster Session Cleanup (factory.py)
   - Changed from 300s to 60s
   - Quicker stale session removal

3. Error Logging (views.py & managers.py)
   - Proper exception logging
   - Connection lifecycle logs

4. Broadcast Lock Optimization (managers.py)
   - Take snapshot of connections
   - Send without holding lock
   - Reduces latency under load

5. Decryption Caching (client.py)
   - Cache decrypted messages
   - Avoid re-decrypting on render

6. Session Validation (views.py)
   - Check session validity during message receive

7. SRP Session Cleanup (views.py)
   - Clean up auth sessions after use

Files Modified:
- cmd_chat/server/stores.py
- cmd_chat/server/factory.py
- cmd_chat/server/views.py
- cmd_chat/server/managers.py
- cmd_chat/client/client.py

No breaking changes. Ready for PR.