I've put together a persistence plugin that uses spray-json and flat files, the motivation being that I'm writing a simulation and using JSON flat files it makes it easy to post-process the persistence logs.

I've used the simple TCK JournalPerfSpec benchmark class and discarded the first 25% of the results to allow for warmup. The numbers I'm getting are:

PersistAsync - ~62k records/second
Persist      - ~25k records/second
Recover      - ~73k records/second

That's more than adequate for my needs but I'm wondering how that stacks up against other persistence options - the HW I'm using is nothing special, 2Ghz i5 laptop, laptop HDD for storage.

Alan Burlison

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