RE: How to improve performance with MDB backend?

[Chris Card <ctcard@hotmail.com>]

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> Date: Fri, 19 Apr 2013 00:03:30 -0700
> From: hyc@symas.com
> To: quanah@zimbra.com; ctcard@hotmail.com; openldap-technical@openldap.org
> Subject: Re: How to improve performance with MDB backend?
>
> Quanah Gibson-Mount wrote:
> > --On Thursday, April 18, 2013 8:18 PM +0000 Chris Card <ctcard@hotmail.com>
> > wrote:
> >
> >> I'll give that a try. I had perhaps been taking the advice given in the
> >> slapd-mdb man page too seriously:
> >
> > Heh, yes, it seems so. ;) With writemap, you definitely do not want to
> > exceed actual RAM.
>
> Nonsense. Set the size to as large as you need to allow the DB to grow.
> Period. Writemap has no bearing on this.
>
I tried reducing the maxsize, but it made no difference to the performance.
So I'm still at the point where writes to BDB are roughly 4 times faster than writes to MDB.
Any more suggestions?

Chris