Files
wjones 78c8d4256c Docs reorg, config refactor, and ItemValues index fix
- Moved all documentation to docs/ and updated README with categorized links and new docs/INDEX.md
- Added HOW_TO_SWITCH_DATABASE.md and several new analysis/action docs
- Introduced db-config.ps1 for centralized DB config; all scripts now use it for easy DB switching
- Added db-quick.ps1 for interactive diagnostics and index management
- Updated Add-All-Indexes.bat to use db-config.ps1
- Added Fix-ItemValues-Performance.ps1 to create 3 critical indexes on ItemValues, addressing 1.3B row seq scan issue
- Updated performance_indexes.sql with new ItemValues indexes and ANALYZE
- Updated diagnostics.sql and database_report.txt for improved output and clarity
- All scripts and docs now reference the new config and index optimization workflow
2026-02-28 16:23:43 -05:00

4.0 KiB

📊 Weekly Index Usage Tracking

Week 1: Baseline (Starting 2026-02-28)

Monday

Date: 2026-02-28

Jellyfin Usage:

  • Browsed Recently Added
  • Filtered by Genre
  • Searched for actors/directors
  • Navigated library folders
  • Watched content

Notes:

Tuesday

Date: ___________

Jellyfin Usage:

  • Browsed Recently Added
  • Filtered by Genre
  • Searched for actors/directors
  • Navigated library folders
  • Watched content

Notes:

Wednesday (Mid-Week Check)

Date: ___________

Run Quick Check:

& "C:\Program Files\PostgreSQL\18\bin\psql.exe" -U jellyfin -d jellyfin -c "SELECT indexname, idx_scan, idx_tup_read FROM pg_stat_user_indexes WHERE schemaname = 'library' AND indexname LIKE 'idx_%' ORDER BY indexname;"

Results:

  • idx_baseitems_datecreated_filtered: _____ uses
  • idx_baseitems_topparentid_isfolder: _____ uses
  • idx_baseitems_type_isvirtualitem_topparentid: _____ uses
  • idx_itemvaluesmap_itemvalueid_itemid: _____ uses
  • idx_activitylogs_userid_datecreated: _____ uses

Notes:

Thursday

Date: ___________

Jellyfin Usage:

  • Browsed Recently Added
  • Filtered by Genre
  • Searched for actors/directors
  • Navigated library folders
  • Watched content

Notes:

Friday

Date: ___________

Jellyfin Usage:

  • Browsed Recently Added
  • Filtered by Genre
  • Searched for actors/directors
  • Navigated library folders
  • Watched content

Notes:

Weekend

Date: ___________

Jellyfin Usage:

  • Browsed Recently Added
  • Filtered by Genre
  • Searched for actors/directors
  • Navigated library folders
  • Watched content

Notes:


End of Week Analysis

Date: ___________

Run Full Diagnostics:

& "C:\Program Files\PostgreSQL\18\bin\psql.exe" -U jellyfin -d jellyfin -f sql\diagnostics.sql > diagnostics_week1.txt

Compare to Baseline (2026-02-28):

Metric Baseline Week 1 Change
idx_baseitems_datecreated_filtered uses 0 _____ _____
idx_itemvaluesmap_itemvalueid_itemid uses 10 _____ _____
ItemValues seq_scan 226,121 _____ _____
ItemValues seq_tup_read 1,313,356,213 _____ _____

Observations:

Questions:

  1. Which indexes showed increased usage?

  2. Are there still tables with high sequential scans?

  3. Any new slow queries?

  4. Did you notice performance improvements in Jellyfin?


Recommendations for Week 2:

Based on Week 1 results:

  • Keep indexes that show good usage (>100 uses)
  • Monitor indexes with moderate usage (10-100 uses)
  • Consider removing indexes with 0-10 uses
  • Create new indexes for remaining bottlenecks

Week 2: Optimization (Starting ___________)

Actions Taken:

Monday-Friday:

(Repeat tracking format from Week 1)


Week 3-4: Long-term Monitoring

Weekly Summary Format:

Week 3 (Date: ___________)

  • Diagnostics run: [ ]
  • Index usage: _____
  • Performance notes: _____

Week 4 (Date: ___________)

  • Diagnostics run: [ ]
  • Index usage: _____
  • Performance notes: _____

30-Day Review

Date: ___________

Final Index Status:

Index Name Total Uses Keep/Remove Reason
idx_baseitems_datecreated_filtered _____ [ ] Keep [ ] Remove _____
idx_baseitems_topparentid_isfolder _____ [ ] Keep [ ] Remove _____
idx_baseitems_type_isvirtualitem_topparentid _____ [ ] Keep [ ] Remove _____
idx_itemvaluesmap_itemvalueid_itemid _____ [ ] Keep [ ] Remove _____
idx_activitylogs_userid_datecreated _____ [ ] Keep [ ] Remove _____

Overall Performance Improvement:

  • Significantly faster (50%+)
  • Moderately faster (20-50%)
  • Slightly faster (10-20%)
  • No noticeable change

Next Steps:


Notes & Observations

Use this space for any additional observations, weird behaviors, or questions: