10:48 a.m.
Yes, I know:
Set-based ACLs are slow even if one properly sets index configuration.
But I'd like to raise a discussion here whether it would be possible to improve
the performance within slapd.
Any thoughts?
Ciao, Michael.
11:22 a.m.
On 02/03/2014 07:48 PM, Michael Ströder wrote:
Yes, I know:
Set-based ACLs are slow even if one properly sets index configuration.
But I'd like to raise a discussion here whether it would be possible to improve
the performance within slapd.
Any thoughts?
What about profiling some use cases of interest?
p.
--
Pierangelo Masarati
Associate Professor
Dipartimento di Scienze e Tecnologie Aerospaziali
Politecnico di Milano
11:39 a.m.
Our public ldap server - ldap.surevoip.co.uk makes heavy use of set so
I'd be interested in sponsoring any work.
Thanks.
On 3 February 2014 19:22, Pierangelo Masarati
<pierangelo.masarati(a)polimi.it> wrote:
On 02/03/2014 07:48 PM, Michael Ströder wrote:
>
> Yes, I know:
> Set-based ACLs are slow even if one properly sets index configuration.
>
> But I'd like to raise a discussion here whether it would be possible to
> improve
> the performance within slapd.
>
> Any thoughts?
What about profiling some use cases of interest?
p.
--
Pierangelo Masarati
Associate Professor
Dipartimento di Scienze e Tecnologie Aerospaziali
Politecnico di Milano
--
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1:12 p.m.
Pierangelo Masarati wrote:
On 02/03/2014 07:48 PM, Michael Ströder wrote:
> Yes, I know:
> Set-based ACLs are slow even if one properly sets index configuration.
>
> But I'd like to raise a discussion here whether it would be possible to improve
> the performance within slapd.
>
> Any thoughts?
What about profiling some use cases of interest?
I'm not sure what exactly you mean. Be assured that I'm already trying to
re-arrange the ACLs to make things faster. IMO I also defined decent indexing
configuration.
Or do you want to see some use-cases I've implemented?
Ciao, Michael.
1:30 p.m.
On 02/03/2014 10:12 PM, Michael Ströder wrote:
Pierangelo Masarati wrote:
> On 02/03/2014 07:48 PM, Michael Ströder wrote:
>> Yes, I know:
>> Set-based ACLs are slow even if one properly sets index configuration.
>>
>> But I'd like to raise a discussion here whether it would be possible to
improve
>> the performance within slapd.
>>
>> Any thoughts?
> What about profiling some use cases of interest?
I'm not sure what exactly you mean. Be assured that I'm already trying to
re-arrange the ACLs to make things faster. IMO I also defined decent indexing
configuration.
Or do you want to see some use-cases I've implemented?
I mean apply realistic
load to realistic set-based ACLs and profile the
execution, to track possible bottlenecks, to avoid spending time in
optimizing code that doesn't get used.
p.
--
Pierangelo Masarati
Associate Professor
Dipartimento di Scienze e Tecnologie Aerospaziali
Politecnico di Milano
2:28 p.m.
--On Monday, February 03, 2014 10:30 PM +0100 Pierangelo Masarati
<pierangelo.masarati(a)polimi.it> wrote:
> Or do you want to see some use-cases I've implemented?
I mean apply realistic load to realistic set-based ACLs and profile the
execution, to track possible bottlenecks, to avoid spending time in
optimizing code that doesn't get used.
i.e, use something like oprofile for profiling the actual code execution of
your set ACLs.
--Quanah
--
Quanah Gibson-Mount
Architect - Server
Zimbra, Inc.
--------------------
Zimbra :: the leader in open source messaging and collaboration
12:05 a.m.
Quanah Gibson-Mount wrote:
--On Monday, February 03, 2014 10:30 PM +0100 Pierangelo Masarati
<pierangelo.masarati(a)polimi.it> wrote:
>> Or do you want to see some use-cases I've implemented?
> I mean apply realistic load to realistic set-based ACLs and profile the
> execution, to track possible bottlenecks, to avoid spending time in
> optimizing code that doesn't get used.
i.e, use something like oprofile for profiling the actual code execution of
your set ACLs.
One thing that definitely strikes me is that there are so many "not indexed"
messages logged.
In my setup there are ~40..60 stupid index warning messages sent to syslog for
a single search!
=> ITS#7796
Ciao, Michael.
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6 comments
4 participants
participants (4)
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Gavin Henry -
Michael Ströder -
Pierangelo Masarati -
Quanah Gibson-Mount