Bug 138106

Summary:	Rebuild thumbnails should be multithreaded
Product:	[Applications] digikam	Reporter:	Paul Waldo <paul>
Component:	Database-Thumbs	Assignee:	Digikam Developers <digikam-bugs-null>
Status:	RESOLVED FIXED
Severity:	wishlist	CC:	caulier.gilles
Priority:	NOR
Version:	unspecified
Target Milestone:	---
Platform:	unspecified
OS:	Linux
Latest Commit:		Version Fixed In:	5.7.0
Sentry Crash Report:

Description Paul Waldo 2006-11-29 21:22:07 UTC

Version:           0.9.0-rc1 (using KDE 3.5.5, Kubuntu (dapper) 4:3.5.5-0ubuntu1~dapper2)
Compiler:          Target: i486-linux-gnu
OS:                Linux (i686) release 2.6.15-27-686

It would be nice to use multiple CPUs (if available) for rebuilding thumbnails.  Maybe allowing the user to specify how many threads he wants for rebuilding?

Comment 1 caulier.gilles 2006-11-30 07:34:36 UTC

Paul,

Thumbnails are generated by a separate process using KIO-slave.

Gilles

Comment 2 Fabien 2006-12-13 15:27:20 UTC

I rebuilded thumbnails on a 2xdual-core CPU PC, and it's true that only one processor is used at the same time. 
I can only see one kio_digikamthumbnail process (not multi-threaded) to do the job. So, it doesn't use multiple processors...
But maybe kio-slave can't handle multi-threaded jobs ?

Comment 3 caulier.gilles 2017-07-24 14:59:26 UTC

The KIO slave dedicated to generate thumbnails is now replaced by a multi-threaded interface since 5.0.0.