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pgsql-jellyfin/database_report.txt
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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

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Timing is on.
Expanded display is used automatically.
=========================================
Jellyfin PostgreSQL Performance Report
=========================================
1. CONNECTION POOL STATUS
-----------------------------------------
total_connections | active | idle | idle_in_transaction | aborted | waiting
-------------------+--------+------+---------------------+---------+---------
0 | 0 | 0 | 0 | 0 | 0
(1 row)
Time: 14.923 ms
2. LONG-RUNNING QUERIES (>1 second)
-----------------------------------------
pid | usename | application_name | duration | state | wait_event_type | wait_event | query_preview
-----+---------+------------------+----------+-------+-----------------+------------+---------------
(0 rows)
Time: 10.143 ms
3. TABLE SIZES (Top 10)
-----------------------------------------
Time: 17.735 ms
4. INDEX USAGE (Tables with low index usage)
-----------------------------------------
schemaname | tablename | seq_scan | idx_scan | rows | index_usage_percent
------------+-----------------------+----------+----------+--------+---------------------
library | ItemValues | 239123 | 262958 | 8802 | 52.37
library | Peoples | 20780 | 331963 | 84061 | 94.11
library | AttachmentStreamInfos | 533 | 19267 | 5085 | 97.31
library | Chapters | 369 | 19220 | 18865 | 98.12
library | BaseItems | 10683 | 2776087 | 112093 | 99.62
library | MediaStreamInfos | 126 | 39129 | 60298 | 99.68
library | BaseItemProviders | 2680 | 900431 | 155030 | 99.70
library | ItemValuesMap | 431 | 237893 | 263683 | 99.82
library | PeopleBaseItemMap | 15 | 127908 | 246523 | 99.99
library | BaseItemImageInfos | 87 | 1025614 | 65607 | 99.99
(10 rows)
Time: 8.349 ms
5. TABLES WITH HIGH SEQUENTIAL SCANS
-----------------------------------------
schemaname | tablename | seq_scan | seq_tup_read | idx_scan | n_live_tup | avg_rows_per_seq_scan
------------+-----------------------+----------+--------------+----------+------------+-----------------------
library | ItemValues | 239123 | 1426740382 | 262958 | 8802 | 5966
library | Peoples | 20780 | 1038286642 | 331963 | 84061 | 49965
library | BaseItems | 10683 | 379674076 | 2776087 | 112093 | 35540
library | BaseItemProviders | 2680 | 1370592 | 900431 | 155030 | 511
library | UserData | 15853658 | 458427 | 1 | 3 | 0
library | ItemValuesMap | 431 | 96582 | 237893 | 263683 | 224
library | AttachmentStreamInfos | 533 | 77460 | 19267 | 5085 | 145
library | Chapters | 369 | 71596 | 19220 | 18865 | 194
library | MediaStreamInfos | 126 | 11295 | 39129 | 60298 | 89
(9 rows)
Time: 9.443 ms
6. TABLE BLOAT (Dead Tuples)
-----------------------------------------
schemaname | tablename | dead_tuples | live_tuples | dead_tuple_percent | last_vacuum | last_autovacuum | last_analyze | last_autoanalyze
------------+--------------------+-------------+-------------+--------------------+-------------+-------------------------------+-------------------------------+-------------------------------
library | BaseItems | 9743 | 112093 | 8.69 | | 2026-02-28 15:26:15.491132-05 | 2026-02-28 15:53:05.714737-05 | 2026-02-28 15:46:14.039634-05
library | BaseItemImageInfos | 4933 | 65607 | 7.52 | | 2026-02-28 15:51:10.816013-05 | 2026-02-28 15:53:06.902228-05 | 2026-02-28 15:52:11.608171-05
library | BaseItemProviders | 2468 | 155030 | 1.59 | | 2026-02-28 15:46:15.528943-05 | 2026-02-28 15:53:07.082623-05 | 2026-02-28 15:50:10.879895-05
(3 rows)
Time: 3.804 ms
7. CACHE HIT RATIO (Should be >95%)
-----------------------------------------
metric | hit_ratio_percent
------------------------+-------------------
Buffer Cache Hit Ratio |
(1 row)
Time: 3.750 ms
8. UNUSED OR RARELY USED INDEXES
-----------------------------------------
schemaname | tablename | indexname | index_size | times_used | idx_tup_read | idx_tup_fetch
------------+-------------------+-----------------------------------------------------------------+------------+------------+--------------+---------------
library | PeopleBaseItemMap | PK_PeopleBaseItemMap | 23 MB | 0 | 0 | 0
library | ItemValuesMap | idx_itemvaluesmap_itemvalueid_itemid | 17 MB | 10 | 108 | 10
library | ItemValuesMap | PK_ItemValuesMap | 17 MB | 0 | 0 | 0
library | BaseItems | IX_BaseItems_Type_TopParentId_IsVirtualItem_PresentationUnique~ | 16 MB | 6 | 57709 | 4974
library | BaseItems | IX_BaseItems_Path | 15 MB | 0 | 0 | 0
library | BaseItems | IX_BaseItems_Type_TopParentId_Id | 13 MB | 0 | 0 | 0
library | PeopleBaseItemMap | IX_PeopleBaseItemMap_ItemId_ListOrder | 13 MB | 0 | 0 | 0
library | BaseItems | idx_baseitems_datecreated_filtered | 11 MB | 0 | 0 | 0
library | BaseItemProviders | IX_BaseItemProviders_ProviderId_ProviderValue_ItemId | 10 MB | 0 | 0 | 0
library | BaseItemProviders | baseitemproviders_providerid_idx | 8216 kB | 0 | 0 | 0
(10 rows)
Time: 16.869 ms
9. CURRENT LOCKS (Blocked queries)
-----------------------------------------
blocked_pid | blocked_user | blocking_query | blocking_duration | blocked_query
-------------+--------------+----------------+-------------------+---------------
(0 rows)
Time: 10.333 ms
10. SLOWEST QUERIES (Requires pg_stat_statements extension)
-----------------------------------------
DO
Time: 10.465 ms
DO
Time: 144.695 ms
11. KEY POSTGRESQL SETTINGS
-----------------------------------------
name | setting | unit | short_desc
------------------------------+---------+------+------------------------------------------------------------------------------------------
autovacuum | on | | Starts the autovacuum subprocess.
checkpoint_completion_target | 0.9 | | Time spent flushing dirty buffers during checkpoint, as fraction of checkpoint interval.
default_statistics_target | 100 | | Sets the default statistics target.
effective_cache_size | 524288 | 8kB | Sets the planner's assumption about the total size of the data caches.
effective_io_concurrency | 16 | | Number of simultaneous requests that can be handled efficiently by the disk subsystem.
maintenance_work_mem | 131072 | kB | Sets the maximum memory to be used for maintenance operations.
max_connections | 100 | | Sets the maximum number of concurrent connections.
random_page_cost | 4 | | Sets the planner's estimate of the cost of a nonsequentially fetched disk page.
shared_buffers | 262144 | 8kB | Sets the number of shared memory buffers used by the server.
wal_buffers | 2048 | 8kB | Sets the number of disk-page buffers in shared memory for WAL.
work_mem | 1048576 | kB | Sets the maximum memory to be used for query workspaces.
(11 rows)
Time: 6.588 ms
12. RECOMMENDATIONS
-----------------------------------------
Time: 8.404 ms
=========================================
Run sql/performance_indexes.sql to add missing indexes
See PERFORMANCE_TROUBLESHOOTING.md for detailed fixes
=========================================
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