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From Jukka Zitting <jukka.zitt...@gmail.com>
Subject Re: Some more benchmarks
Date Sun, 29 Sep 2013 01:24:26 GMT
Hi,

On Tue, Sep 24, 2013 at 11:19 PM, Jukka Zitting <jukka.zitting@gmail.com> wrote:
> On Tue, Sep 24, 2013 at 10:47 PM, Jukka Zitting <jukka.zitting@gmail.com> wrote:
>> The concurrent read and read/write test cases look like more attention
>> is needed on the test code, as it's currently hard to interpret the
>> results. I'll see what I can do there.
>
> It turns out most of the reported time was going to login() calls (see
> OAK-634). I refactored the tests in revision 1526092 so that the login
> calls won't affect the performance measurements.

There were a few other systemic issues with the concurrency benchmarks
(like the background threads running at lower priority and doing less
work). I made some further improvements, and the numbers now look like
this:

    # ConcurrentReadTest             90%
    Jackrabbit                      4132
    Oak-Default                     2031
    Oak-Mongo                       2116
    Oak-Segment                     2258
    Oak-Tar                         2580

    # ConcurrentReadWriteTest        90%
    Jackrabbit                      3192
    Oak-Default                     3600
    Oak-Mongo                       4596
    Oak-Segment                     2605
    Oak-Tar                         2876

    # ConcurrentWriteReadTest        90%
    Jackrabbit                      2770
    Oak-Default                      875
    Oak-Mongo                       1243
    Oak-Segment                      565
    Oak-Tar                          405

    # ConcurrentWriteTest            90%
    Jackrabbit                       597
    Oak-Default                     2141
    Oak-Mongo                       1166
    Oak-Segment                      558
    Oak-Tar                          348

Full details in https://gist.github.com/jukka/6748243.

BR,

Jukka Zitting

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