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Posted to oak-issues@jackrabbit.apache.org by "Michael Dürig (JIRA)" <ji...@apache.org> on 2013/06/19 15:59:19 UTC
[jira] [Comment Edited] (OAK-877) Generating observation events
takes too long when intermediate save calls are involved
[ https://issues.apache.org/jira/browse/OAK-877?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13688010#comment-13688010 ]
Michael Dürig edited comment on OAK-877 at 6/19/13 1:59 PM:
------------------------------------------------------------
These graphs show how long it takes to deliver the observation events generated from 1000 added nodes. The vertical axis shows the number of pending events at a given time. The horizontal axis shows the time elapsed in milliseconds.
In "1 transaction" all nodes are persisted with a single save call whereas in "10 transaction" the nodes are persisted with a total of 10 intermediate save calls.
The raw data is here: https://docs.google.com/spreadsheet/pub?key=0AqWOLyLNdfKedDk4a01OSU5mUmxNT1BVRERGcTdBUkE&output=html
was (Author: mduerig):
These graphs show how long it takes to deliver the observation events generated from 1000 added nodes. The vertical axis shows the number of pending events at a given time. The horizontal axis shows the time elapsed in milliseconds.
In "1 transaction" all nodes are persisted with a single save call whereas in "10 transaction" the nodes are persisted with a total of 10 intermediate save calls.
> Generating observation events takes too long when intermediate save calls are involved
> --------------------------------------------------------------------------------------
>
> Key: OAK-877
> URL: https://issues.apache.org/jira/browse/OAK-877
> Project: Jackrabbit Oak
> Issue Type: Improvement
> Components: core
> Reporter: Michael Dürig
> Attachments: 1_save.png, 2.save.png
>
>
> Creating observation events is much more expensive when a transaction is broken down through intermediate save calls compared to only having a single save call.
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