Sequential File Improvement + Performance Tests

[nigro_franz <ni...@gmail.com>]

Hi to everyone!

I'm searching feedbacks about a new implementation of
org.apache.activemq.artemis.core.io.SequenceFile that provides (a lot)
faster performances of both the "plain" Nio and libaio implementations: in
"pure Java" (*libaio is not available for windows* AFAIK)!
This implementation could open the doors to other improvements, impossible (
aka hardly possible) with the other implementations (e.g. IPC tools to
receive/monitor/collect/visualize/transform the added journal entries with a
sub-microsecond latency and provides some kind of analytics on them).
The current implementation is a good proof-of-concept and anyone interested
could try the bench attached to it:

https://issues.apache.org/jira/browse/ARTEMIS-508
<https://issues.apache.org/jira/browse/ARTEMIS-508>  

As soon as I'll proceed with the implementation i'll post updates.
Anyone have comments, ideas, suggestions?

Regards





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