[jira] Commented: (DERBY-3805) Create a simple Blob performance regression test

["Kristian Waagan (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/DERBY-3805?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12636610#action_12636610 ] 

Kristian Waagan commented on DERBY-3805:
----------------------------------------

Committed patch 1b to trunk with revision 701351.
I expect  a number of changes will be made later, for instance tuning the run parameters (iterations/repetitions) and adding/removing tests.

> Create a simple Blob performance regression test
> ------------------------------------------------
>
>                 Key: DERBY-3805
>                 URL: https://issues.apache.org/jira/browse/DERBY-3805
>             Project: Derby
>          Issue Type: Test
>          Components: Test
>    Affects Versions: 10.5.0.0
>            Reporter: Kristian Waagan
>            Assignee: Kristian Waagan
>         Attachments: derby-3805-1a-blobaccesstest.diff, derby-3805-1b-blobaccesstest.diff
>
>
> A simple Blob performance regression test should exist to make it easier to detect performance degradations.
> The test should be reasonably quick to complete.
> My plan is to focus on embedded first, then continue and enable all tests for client/server if possible.
> Depending on the relative performance of embedded and client/server, the parameters might have to be tweaked to achieve an acceptable test duration.
> Note that the test results will only be valid for runs performed on the same machine. The intended purpose is to run the test against a clean trunk first, followed by a run with the patch possibly affecting the Blob performance.
> Also note that the compared builds must have been built with the same sanity mode.

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