Bug 315947

Summary:	akonadi handling ~/.config/akonadi/agent_config_akonadi_nepomuk_feeder_changes.dat causes heavy IO load
Product:	[Frameworks and Libraries] Akonadi	Reporter:	Ilya Hegai <ilya.hegai>
Component:	Nepomuk Feeder Agents	Assignee:	kdepim bugs <pim-bugs-null>
Status:	RESOLVED FIXED
Severity:	normal	CC:	dvratil, Martin, me, montel, vkrause
Priority:	NOR
Version First Reported In:	4.9
Target Milestone:	---
Platform:	Gentoo Packages
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:	4.11
Sentry Crash Report:

Description Ilya Hegai 2013-03-01 11:26:05 UTC

akonadi handling ~/.config/akonadi/agent_config_akonadi_nepomuk_feeder_changes.dat causes heavy IO load which leads to ~3Gb per day written according to iotop (I was forced to use anything-sync-daemon to link this dir to tmpfs), almost each kmail operation ended with that file is beeing rewritten (and judging by iotop completely rewritten)
As SSD user I've been worrying about it not because of SSD resource (which is quite decent nowadays) but because of disk is getting pretty warm (just like HDD under constant heavy load)

btw, nepomuk itself is disabled on my system

I've been receiving just about 50 e-mails per day

Reproducible: Always

Comment 1 Laurent Montel 2013-03-01 11:35:23 UTC

There is a

Comment 2 Laurent Montel 2013-03-01 11:35:51 UTC

there is a lot of improvement in 4.10.
Please update it.
We fixed it.

Comment 3 Martin Steigerwald 2013-05-01 10:24:35 UTC

I don´t think this is fixed, but it mine might be a different bug:

Bug 319157 -  Excessive I/O usage during mail import with KMailCVT

Comment 4 Daniel Vrátil 2013-07-31 19:38:29 UTC

Since 4.11, change recording is disabled in the Nepomuk Feeder agent, so it should not generate any more IO (related to this particular report).