I've filed a feature request with upstream. In 5.1/5.5 the InnoDB
storage engine will have a background thread that wakes up every one
second.
In future versions there will be more threads for background work (as
this is required for multi-core scalability), so it is an interesting
question how
Moving to 5.5 as wishlist bugs won't be backported to prior releases.
** Package changed: mysql-5.1 (Ubuntu) = mysql-5.5 (Ubuntu)
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Wrong package.
** Tags added: apport-collected
** Description changed:
mysqld-akonadi consistently causes 2 to 3 wakeups per second on idle on my
machine. This makes it the highest cause of wakeups coming from a user source
for me. By comparison, virtuoso-t, used by nepomuk causes 0.5
Here is the log powertop generated.
** Attachment added: powertop.txt
https://bugs.launchpad.net/ubuntu/+source/mysql-5.1/+bug/640472/+attachment/1593549/+files/powertop.txt
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mysqld causes 2-3 wakeups per second on idle
https://bugs.launchpad.net/bugs/640472
You received this bug
** Changed in: mysql-5.1 (Ubuntu)
Importance: Undecided = Wishlist
** Changed in: mysql-5.1 (Ubuntu)
Status: New = Confirmed
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mysqld causes 2-3 wakeups per second on idle
https://bugs.launchpad.net/bugs/640472
You received this bug notification because you are a member of Ubuntu
