Hi All,
Here is a nice article comparing OSea to run hardcore net apps:
http://www.sysadminmag.com/articles/2001/0107/0107a/0107a.htm
The article compares Linux (RH), FreeBSD, Solaris (Intel), and Windows 2000.
The tests were performed against the implementation TCP/IP Architecture
on these platforms with different system calls, file systems tests (EXT2 for Linux, UFS for FreeBSD
and Solaris, and NTFS for Windows 2000) for creating writing, and reading
10,000 files, so some apps like different DBMS or other networks apps
depending on heavy disk I/O would perform on the OSes, and test of various network
applications based on number of simultaneous connections, process-based vs. thread-based
and sync vs. async connection handling architectures.
Hope it might be helpful for you :)
Serguei