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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