Samba4: 2.9 seconds to set a password???

Andrew Bartlett abartlet at samba.org
Tue Dec 2 04:42:11 GMT 2008


On Mon, 2008-12-01 at 23:34 -0500, simo wrote:
> On Tue, 2008-12-02 at 14:18 +1100, Andrew Bartlett wrote:
> > On Mon, 2008-11-24 at 09:08 +0100, Stefan (metze) Metzmacher wrote:
> > > Volker Lendecke schrieb:
> > > > Hi!
> > > > 
> > > > Just did a setpassword on my old, poor 1.6GHz dual-core
> > > > laptop:
> > > > 
> > > > vlendec at delphin:~/git/s4-work/source4> time setup/setpassword vl --newpassword=foo
> > > > 
> > > > real    0m2.941s
> > > > user    0m2.552s
> > > > sys     0m0.020s
> > > 
> > > I think loading the schema is what makes it so slow.
> > 
> > Correct.  I hope to look into this, and tridge was similarly interested
> > in chasing this down.  Perhaps we might store a linearised copy of the
> > in-memory schema as a cache. 
> 
> Wouldn't it be simpler to require the server to run and use samr/ldap
> operations ?

No, we have to look into the startup cost issue regardless, it's just
inefficient at present.   

The script could be modified to also work against remote LDAP - but
other tools (net) do this operations over SAMR already, so there is
little need.

Andrew Bartlett

-- 
Andrew Bartlett                                http://samba.org/~abartlet/
Authentication Developer, Samba Team           http://samba.org
Samba Developer, Red Hat Inc.                  http://redhat.com




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