Re: org.prevayler.implementation.PersistenceTest#testDiskSyncPerformance

> This test fails now and then. I would very much like to fix it but don't
> understand what it's supposed to do. Can someone please help me out?

It is supposed to test that forcing sync to disk should be slower than
letting the O.S. buffer things. A few things might make the test stop
failing:

- Use System.nanotime() instead of currentTimeMillis() in lines 106
and 112 to get finer granularity.
- Call system.gc() before line 103 to avoid one run influencing the other.

Are you sure FD.sync() actually does something on your platform? Is
the HD cache disabled?

Klaus

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