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List: kde-bugs-dist
Subject: [Bug 251492] New: Background tasks should run with idle IO
From: Michael Schuerig <michael () schuerig ! de>
Date: 2010-09-16 19:06:07
Message-ID: bug-251492-17878 () http ! bugs ! kde ! org/
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https://bugs.kde.org/show_bug.cgi?id=251492
Summary: Background tasks should run with idle IO scheduling
priority
Product: kde
Version: unspecified
Platform: Debian unstable
OS/Version: Linux
Status: UNCONFIRMED
Severity: normal
Priority: NOR
Component: general
AssignedTo: unassigned-bugs@kde.org
ReportedBy: michael@schuerig.de
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
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