Bug 251492

Summary:	Background tasks should run with idle IO scheduling priority
Product:	[I don't know] kde	Reporter:	Michael Schuerig <michael>
Component:	general	Assignee:	Unassigned bugs mailing-list <unassigned-bugs>
Status:	RESOLVED DUPLICATE
Severity:	normal
Priority:	NOR
Version:	unspecified
Target Milestone:	---
Platform:	Debian unstable
OS:	Linux
Latest Commit:		Version Fixed In:

Description Michael Schuerig 2010-09-16 21:06:06 UTC

Version:           unspecified (using KDE 4.4.5) 
OS:                Linux

KDE runs several background tasks that are not related to actions a user might trigger and for whose completion they wait. Still, these tasks can take up considerable resources and thereby even delay other tasks.

Notable offenders are http_cache_cleaner and virtuoso. Particularly after login these task can drive the load so high that the system becomes effectively unusable for a couple of minutes.

I consider this not just a desirable enhancement, but a downright performance bug.

The cure? Setting the IO scheduling priority of these tasks to idle results in a considerable improvement.

Reproducible: Didn't try

Comment 1 Christoph Feck 2010-09-16 21:28:55 UTC


*** This bug has been marked as a duplicate of bug 183272 ***