[stunnel-users] stunnel v5.32 (and older) strange session cache behavior on memory (de)allocation

Fri May 20 10:24:12 CEST 2016

Hi,
I've done some tests with stunnel v5.33b2 and I can confirm that this
version fixes the memory leak I reported (and after the session cache is
filled with entries, stunnel does not allocate more memory for next
sessions).

One more question: do you have any recommendation for session cache size?
On my systems I have set this to 30000. I have 32 GB of RAM so the memory
is not the problem. My concerns are about time spent to search for entries
in cache if I grow session cache size over 100000 entries.

Thank you for your response.

Best Regards,
Adrian Irimescu

On Mon, May 16, 2016 at 10:45 PM, Michał Trojnara <
Michal.Trojnara at stunnel.org> wrote:

> On 16.05.2016 09:42, Adrian Irimescu wrote:
> > Instead of this the stunnel allocates about 28K for any new session
> > which does not have a stored session in cache and does not free this
> > anymore.
>
> Please try:
> https://www.stunnel.org/downloads/beta/stunnel-5.33b2.tar.gz
> In my tests this fixes the memory leak you reported.
>
> Best regards,
>         Mike
>
>
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>
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