slow modify speed when updating a non-indexed field

["Hulsteijn, HR (Robert)" <H.R.Hulsteijn@rf.rabobank.nl>]

> LS,
> 
> I have a question about the speed of write actions on a openldap system.
> 
> We have 10 indexes on our system. 
> 
> I try to modify a non-indexed field in two different records: the first
> record has a small number of indexed fields; the second record has a large
> number of indexed field.
> 
> I think there is no difference in write-speed because i modify a
> non-indexed field, but in our tests the modify on the second record is
> more than 10 times slower!
> 
> Is there an explanation for this? 
> 
> I think openldap performs an update on the complete record and not only on
> the (non-indexed) field; When this is true, openldap must check all the
> indexes of the record; even if the updated field is a non-indexed field.
> Is this true?
> 
> Gerrit van den Hul
> 
> **************************************
> Gerrit van den Hul
> Senior Software Designer
> Altium - Think it, Design it, Build it
> Phone Rabobank: +31 30 21 51 390
> Phone Altium: +31 33 455 8584
> Fax Altium: +31 33 455 5503
> mobile: +31 6 1464 9859
> E-Mail Rabobank: G.Hul@rf.rabobank.nl
> E-Mail Altium: gerrit.van.den.hul@altium.nl
> Private E-mail: G.vandenHul@inter.nl.net
> URL: http://www.altium.com
> **************************************
> 


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