Unexepected RadarGun Result Infini Repl Vs. Infini Dist

[cbo_]

Hi

I created a Radargun head-to-head using Infinsipan 5.1.8Final against the same version with the following configs:

- Async Replication (asyncmarshalling false)

- Async Replication (asyncmarshalling true) plus replicationqueue

- Sync Distribution with L1

- Async Distribiton with L1

This was a ramped up test from 2 nodes to 10....all were performed on a single 24 core machine.

Write performance was more inline with what I was anticipating.  However, read performance was not at all as I expected.  Ahead of the test I was thinking any Distribution (even with L1) at best might come close to Replication -- after all, in Replication all cache entries are local.  But the test showed a rather significant winner by a 3 fold margin by the Async Distribtution config.

Can one of the Infinsipan wizards please give me some insight why a Distribution mode config (even with the L1) would handily beat a Replication mode config on reads?

Thank you

Craig