[Bug 289475] [Akonadi Nepomuk Feeder] 100% CPU waste, if I try to index mail.

2011-12-22 Thread Christophe Giboudeaux
https://bugs.kde.org/show_bug.cgi?id=289475





--- Comment #2 from Christophe Giboudeaux cgiboudeaux gmx com  2011-12-22 
23:33:14 ---
 2. Please, speed up mail indexing.

There were several issues before:
- several nepomuk feeders,
- indexing was using a lot of cpu

For 4.8, Nepomuk received lots of fixes, so did Virtuoso 6.1.4 and on the
Akonadi side, there's only one feeder now.

The idle detection may be what you notice: when the machine is used, the
Akonadi feeder stops indexing and resumes later.

There's an option to disable the idle detection in 4.8 (but no kcm afaict):
stop the akonadi server (akonadictl stop)
open ~/.kde/share/config/akonadi_nepomuk_feederrc

change:
[akonadi_nepomuk_feeder]
DisableIdleDetection=false

to:
[akonadi_nepomuk_feeder]
DisableIdleDetection=true

then restart Akonadi

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[Bug 289475] [Akonadi Nepomuk Feeder] 100% CPU waste, if I try to index mail.

2011-12-21 Thread Alejandro Nova
https://bugs.kde.org/show_bug.cgi?id=289475





--- Comment #1 from Alejandro Nova alejandronova gmail com  2011-12-22 
01:46:15 ---
This improved A LOT after I deleted my Akonadi database and recreated it. Even
though there are bugs and mail indexing remains slow, points number 1 and 2 are
accomplished.

- Virtuoso gets a peak of 45% CPU usage, on both my cores (total: 90%). There
is a remaining 10% to 20% used by nepomukstorage. So, that's normal. 90% of the
time, however, CPU usage is less than 10%, and Akonadi eats no CPU.
- I don't need to strace; the behavior is radically different from what I saw
before.
- Indexing, however, remains super slow.

Conclusions:

1. You have to forcefully delete outdated databases, as part of an upgrade.
2. Please, speed up mail indexing.

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