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

Jeremie Le Hen jeremie at le-hen.org
Fri Sep 17 11:45:35 CEST 2010

On Fri, Sep 17, 2010 at 02:49:25PM +0800, Cliffe, Stephen wrote:
> Hi,
> 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.

How is your CPU usage?  Can you post the output of the following

% psrinfo | wc -l

% vmstat 1 10	    (during the stress test)

% netstat -s	    (before and after the test)

Jeremie Le Hen

Humans are born free and equal.  But some are more equal than others.

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