[Kolab-devel] Re: OpenLDAP performance issues

[Martin Konold]

Am Donnerstag, 26. Mai 2005 11:14 schrieb Bernhard Reiter:

Hi,

> BTW: Why are you using libdb-4.3 here?

Because it is an experiment and the version does not matter for that purpose.

> > Bernhard: Do you remember when I mentioned the LD_ASSUME_KERNEL
> > environment variable at the "Mailserver Konferenz" in Magdeburg last
> > week?
>
> Of course, as you can see from the issue707, I also entered it there
> as result of our chat.
> Steffen replied though, that this did not make a difference for him.

Of course it made no difference in his tests because LD_ASSUME_KERNEL affects 
how the dynamic linker resolves the system/glibc thread library. 

BUT as mentioned before Steffen uses the GNU pth statically. Of course the 
dynamic linker cannot influence its behaviour.

In the meantime I looked closer into pth and came to the conclusion that most 
probably it is really a bad idea together with libbdb due to the design of 
bdb which depends on effective resolution of built in deadlocks.

> > Steffen: I propose to remove "--with-threads=pth" as a first step.

Regards,
-- martin

-- 
"I am committed to helping Ohio deliver its electoral votes to the
President next year."  -- 2004, Wally O'Dell - CEO of Diebold, Inc. 
e r f r a k o n - Stuttgart, Germany
Erlewein, Frank, Konold & Partner - Beratende Ingenieure und Physiker