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https://issues.apache.org/jira/browse/COUCHDB-316?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Adam Kocoloski resolved COUCHDB-316.
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Resolution: Fixed
fixed in r762019
> statistics(runtime) doesn't do what we think it does
> ----------------------------------------------------
>
> Key: COUCHDB-316
> URL: https://issues.apache.org/jira/browse/COUCHDB-316
> Project: CouchDB
> Issue Type: Bug
> Components: Database Core
> Reporter: Adam Kocoloski
>
> I was looking at the runtime statistics and finding that {couchdb,
> request_time} was reporting values that seemed to be too small. On further
> investigation I'm fairly certain that the delta returned by
> statistics(runtime) is the time since that function was last called in *any*
> process. That's not at all what we want -- in a highly concurrent system the
> values reported actually converge to zero!
> We could replace it with timer:now_diff. That'll be a measure of wallclock
> time, not CPU, but I think wallclock may be the better metric anyway.
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