0018501: Manual Scan performance is unreasonabely slower when scanned from folders

ID	Project	Category	View Status	Date Submitted	Last Update

0018501	MMW 5	Track Browser	public	2021-11-02 23:10	2021-11-05 00:13

Reporter	peke	Assigned To
Priority	immediate	Severity	major	Reproducibility	always
Status	closed	Resolution	fixed
Target Version	5.0.2	Fixed in Version	5.0.2

Summary	0018501: Manual Scan performance is unreasonabely slower when scanned from folders
Description	Manually Scanning Library folder for updates takes <1s, while doing same on same folder but from Folders view Takes 3 minutes. Expected to be the same especially as Update on rescan is enabled only for Files with changed size and date.
Steps To Reproduce	1. right click on any track -> FMFS -> Folder Library 2. INS on any track from track browser -> Add rescan dialog shows -> OK -> Result of scan is within 1s (Pic Attached) 3. right click on any track -> FMFS -> Folder All 4. INS on any track from track browser -> Add rescan dialog shows -> OK -> Scan takes 3 minutes (Pic Attached) [EXPECTED to finish in 1s like in step 2] TEST NOTE: Result dialog from Step 4 state that MM5 updated 700 Files even nothing changed eg. easily replicated by repeating steps 3 and 4 after closing result dialog and it will take another 3 min to scan.
Tags	No tags attached.

Fixed in build	2515

peke 2021-11-02 23:19 developer ~0065657	Library location Folders node scan result.png (36,591 bytes) Library location Folders node scan result.png (36,591 bytes) Folders node scan result.png (37,205 bytes) Folders node scan result.png (37,205 bytes) Scan options.png (66,789 bytes) Scan options.png (66,789 bytes)

Ludek 2021-11-03 15:09 developer ~0065677	Good catch, the bug appears whenever the files are re-read to filelisting sub to the Folders node. There is one hour time discrepance between the file modified timestamp from the system/tag versus file modified value from the database. This time discrepance falsely considers the file as modified and re-reads the info from the file tag to the database.

Ludek 2021-11-03 16:30 developer ~0065678	Fixed in 2515

peke 2021-11-05 00:13 developer ~0065738	Verified 2515