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From "Matthieu Morel (JIRA)" <>
Subject [jira] [Commented] (S4-94) Update kryo to version 2
Date Mon, 10 Sep 2012 16:44:08 GMT


Matthieu Morel commented on S4-94:

I ran some benchmarks for evaluating the overhead of the platform when sending messages (see
S4-95 ) and profiling results clearly show that the bottleneck is currently the deserialization
of events with kryo1.

I also did some tests with kryo2 and speedup improvements were dramatic. I also noted that
we need to improve the injection of serializers by relying on the assisted injection pattern.
> Update kryo to version 2
> ------------------------
>                 Key: S4-94
>                 URL:
>             Project: Apache S4
>          Issue Type: Improvement
>    Affects Versions: 0.6
>            Reporter: Matthieu Morel
>              Labels: performance
> Kryo 2 provides performance improvements and can minimize some serialization constraints,
such as the need for default zero-arg constructors. It should be quite straightforward to
> From kryo's mailing list, it seems version 2 is now more stable, so now is a good time
for an update.

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