[jira] Updated: (COUCHDB-797) PATCH: couch_stats_aggregator should use queue instead of list

["Sean Bartell (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/COUCHDB-797?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sean Bartell updated COUCHDB-797:
---------------------------------

    Attachment: 0001-stats-use-queue-instead-of-list-for-speed.patch

Patch.

> PATCH: couch_stats_aggregator should use queue instead of list
> --------------------------------------------------------------
>
>                 Key: COUCHDB-797
>                 URL: https://issues.apache.org/jira/browse/COUCHDB-797
>             Project: CouchDB
>          Issue Type: Improvement
>          Components: Database Core
>            Reporter: Sean Bartell
>            Priority: Minor
>         Attachments: 0001-stats-use-queue-instead-of-list-for-speed.patch
>
>
> couch_stats_aggregator uses a list to store samples, but many times per second adds a value to the front or removes one from the end. This patch makes it use a queue instead. Statistics take up little CPU time, but there's a noticeable improvement when CouchDB is idle.

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