My kdb is behind haproxy; just using kdb's built-in HTTP/1.0 webserver for now. I am still experimenting with stored procedures and haproxy's regexp filtering/

My kdb is behind haproxy; just using kdb's built-in HTTP/1.0 webserver for now. I am still experimenting with stored procedures and haproxy's regexp filtering/rewriting. Has anyone ever compared the performance of kdb+ on Linux versus BSD? It works under compatibility mode under the latter but I have never benchmarked it against some other OS. Apparently there is Kx customer demand for a Solaris version but none for BSD?