Yes, 2.6.9-67.ELsmp #1 SMP Wed Nov 7 13:56:44 EST 2007 x86_64 x86_64 x86_64 GNU/Linux.
Anyway i tried to write console Java application that just does CPU intensive calculations in multiple thread and it loaded all CPUs ok. So my guess is some kind of Glassfish settings, or mapping of Glassfish thread pool to system threads (processes).
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