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https://issues.apache.org/jira/browse/OAK-1757?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13979537#comment-13979537
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Michael Dürig commented on OAK-1757:
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Based on that assumption the errors average out over sufficient long time
intervals. However, these intervals are 1s as e.g. the
{{SESSION_WRITE_DURATION}} is reset each second, which might be too short for
sufficient accuracy.
> Oak eats too many CPU cycles when idle
> --------------------------------------
>
> Key: OAK-1757
> URL: https://issues.apache.org/jira/browse/OAK-1757
> Project: Jackrabbit Oak
> Issue Type: Bug
> Components: jcr
> Reporter: Michael Dürig
> Fix For: 1.0
>
>
> An idle Oak eats roughly 5% of my CPU cycles.
> This is caused by the {{Clock}} implementations introduced at
> http://svn.apache.org/viewvc?view=revision&revision=1575050. Scheduling the
> fast clock to update its time every millisecond is quite expensive.
> Substituting for the simple clock reduces idle CPU usage to below 1%.
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