BTW, there's no out of the box map implementation that would provide
both concurrent non-blocking access and LRU tracking. Need to
investigate whether we can borrow something from OSCache (IIRC it has
a similar data structure for its main cache).
Andrus
On Dec 12, 2009, at 10:21 AM, Andrus Adamchik wrote:
On Dec 12, 2009, at 2:03 AM, [email protected] wrote:
http://spreadsheets.google.com/pub?key=tNytbSdt5wYIRTmTl4L-cCA&output=html
If the differences are not in the database, my best guess would be
that
you are hitting the ugly synchronization on the DataRowStore since
the
problem seem to be with concurrent commits.
It would be very interesting to see the same test with a quickfix on
DataRowStore that removes all of the synchronization and uses stuff
from
java.util.concurrent instead.
Regards,
- Tore.
Yeah, very likely. Also using a profiler, like YourKit should help
to tell why it is slowing down so much after the initial period of
fast operation.
Also what's a database channel? You mean a JDBC connection?
Andrus
