Identical Hardware was used to make the tests.

• Intel Core2Duo 2.4 GHz
• 2 GB DDR2 RAM
• 160 GB SATA 7200 RPM
• Windows Server 2003/Ubuntu

PHP on Linux Versus PHP on Windows

• RAW statement execution is faster on Windows.
• Function Calls are faster on Windows
• Object Creation & Access are faster on Linux with PHP 5.2 but faster on Windows with PHP 5.3
• Library calls are faster on Linux. (Example: Encryption process is 3-5 times faster on Ubuntu.)
• File Access is faster on Linux by a small percentage, except for file copy operations which is as much as 60% slower on Windows probably due to the ACL advanced security.
• MySQL access with Linux is faster by more than a little and on Windows, MySQL access deteriorates in version 5.3
• PostgreSQL performance is very close on both platforms (within 6/100 of a second for 1000 Operations) – It’s faster on Windows and faster still on Windows with PHP 5.3
• MS SQL Server access from PHP 5.2 on Windows is marginally slower than MySQL access on Linux.

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