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IDProjectCategoryView StatusLast Update
0007992MMW v4DB/FileMonitorpublic2011-09-08 00:37
Reporterjiri Assigned To 
PriorityurgentSeverityminorReproducibilityN/A
Status closedResolutionfixed 
PlatformWindowsOS7OS Version-
Product Version4.0 
Target Version4.0Fixed in Version4.0 
Summary0007992: ANALYZE DB after major changes
DescriptionWhile testing 0007985 I found out that having the DB ANALYZEd is sometimes very important in order to get fast results. For example, expanding a Location node on a large unanalyzed DB took ~20sec, while after analyzation it's pretty much immediate. I think that we could do few things in order to make this working smoothly for users:

1. Document somewhere, that any performance problems should be fixed by running DB Maintenance (Quick is enough), which does that ANALYZE command.
2. Execute ANALYZE on DB update to 4.0.
3. Execute ANALYZE after any DB scan that added (really added, not only re-scanned) let's say >1000 tracks (or maybe better >10-30% of already existing tracks in DB?).
TagsNo tags attached.
Fixed in build1395

Relationships

related to 0007985 closedjiri Performance: Location node and Find more from same are less responsive than MM3 

Activities

petr

2011-06-22 19:57

developer   ~0026289

Fixed in 1395

peke

2011-09-08 00:37

developer   ~0027496

Already confirmed in later MM 4 builds and rest are added to new bugs related to 0007985