[stunnel-users] tuning/multiple stunnel instance
Michal Trojnara
Michal.Trojnara at mirt.net
Thu Jun 13 22:16:14 CEST 2013
On 2013-06-12 19:53, William Kwan wrote:
>
> I would like to find out if there's anyway to tune stunnel or what's
> the best practice you would recommend.
>
> I have a bit more than 100 sessions defined in stunnel.conf. It
> appears that clients started to see latency increase.
>
I'm pretty sure latency increase has nothing to do with the number of
service sections in your stunnel.conf.
You should investigate:
- The number of concurrent sessions (with netstat);
- The number of new sessions negotiated per second (from stunnel logs);
- Network bandwidth utilization (with your favorite network monitoring
tool), and
- Your platform (some operating systems are weak server platforms).
Feel free to share your stunnel.conf. I may have some performance hints
for you.
BTW: Are you sure that stunnel is the bottleneck here and not the
application server?
Best regards,
Michal Trojnara
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