[stunnel-users] Large performance difference: Solaris vs Linux

Cliffe, Stephen Stephen.Cliffe at andrew.com
Fri Sep 17 08:49:25 CEST 2010


I've just been comparing the performance of stunnel on Solaris 10 & Linux (Centos 5.5) and am seeing a big difference. I'm using stunnel 4.33 compiled with the same options on both platforms and the tcpstress benchmarking tool (http://stunnel.mirt.net/?page=perf).

On a Dell 780 running Solaris 10 I got 163.31 connections/second but on an older, slower Dell 620 running Linux I got 408.01 connections/second. Both machines were otherwise idle.

Does anyone know why there would be such a big difference between the two OS's?



Steve Cliffe
Senior Engineer - Development Infrastructure Team
Andrew Network Solutions Asia Pacific

[ Address : Andrew Corporation Building (39), Northfields Avenue, Wollongong University, NSW, Australia 2500 ]
[ Postal Address : PO Box U40, Wollongong University, NSW, Australia 2500 ]
[ Tel : +61 2 4221 2991] [ Fax : +61 2 4221 2901 ]
[ Email : Stephen.Cliffe at andrew.com]

Visit Andrew on the Web at www.andrew.com<http://www.andrew.com/>

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