FULL PRODUCT VERSION :
Java HotSpot(TM) Server VM (build 1.6.0-beta2-b81, mixed mode)

ADDITIONAL OS VERSION INFORMATION :
CPU : Intel(R) Pentium(R) 4 CPU 2.80GHz Northwood 130nm
cache : 512kB ECC Sync., ATC, 8-way set, 64 byte
Memory : 2GB DDR-SDRAM (2700)
Motherboard : Intel Corporation D865GBF
OS: (Win32 x86) 5.01.2600 (Service Pack 2)

A DESCRIPTION OF THE PROBLEM :
Performance Regression from Jre 1.5.0_06 running code
listed for Bug ID 4755752 "Slow and erratic behaviour of hotspot server VM".

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -

PSUM: 3.276800000000021E9
 MFLOPS: 219.5793749667873
PSUM: 3.276800000000021E9
 MFLOPS: 340.7872 <<<<<<<<<<<<<< OK
ACTUAL -
PSUM: 3.276800000000021E9
 MFLOPS: 161.15410184917212
PSUM: 3.276800000000021E9
 MFLOPS: 257.65161711408 <<<<<<<<< slower



REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
See Shallow class for Bug ID 4755752
---------- END SOURCE ----------

Release Regression From : 5.0u6
The above release value was the last known release where this
bug was known to work. Since then there has been a regression.