Anu Chawla's blog
Recently Performance Tuning compared Oracle 10gR2 RAC on Windows Server 2003 x64 vs. RHEL. You can download the paper from microsoft-oracle.com
The following behavior was observed during testing of the Oracle RAC databases on Red
Hat Enterprise Linux x86_64 and Microsoft Windows Server 2003 Enter:
Oracle RAC Stress Test
o Transactions Per Minute were roughly equivalent for 2 - 150 user sessions.
o Transactions Per Minute were up to 16% higher for MS Windows for 150
- 250 users.
o CPU usage was above 90% for all of these tests for both Linux and MS
o The response times for the “New Company Registration” test component
Oracle has been available on Windows Server since Windows NT shipped in 1994. In that time there have been many changes to Oracle as features have been added and improved. One of the most significant improvement to Oracle on Windows has just been introduced (this was a year ago they supported 64 bit AMD/EM64T) without much fanfare or publicity. This is the introduction of Oracle 10g on Microsoft Windows Server x64.