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Re: Poor performance on Solaris
- To: Quanah Gibson-Mount <firstname.lastname@example.org>
- Subject: Re: Poor performance on Solaris
- From: Omer Faruk SEN <email@example.com>
- Date: Thu, 24 Feb 2011 23:41:55 +0200
- Cc: Juergen.Sprenger@swisscom.com, firstname.lastname@example.org
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I totally agree with you about Solaris + OpenLdap issues. Just use
Linux if you will use openldap if possible of course ..
On Thu, Feb 24, 2011 at 8:28 PM, Quanah Gibson-Mount <email@example.com> wrote:
> --On Thursday, February 24, 2011 3:53 PM +0100 Juergen.Sprenger@swisscom.com
>> we had some performance issues on our ldap servers running Solaris 10
>> I did some tests using slamd http://www.slamd.com/ and got disturbing
>> ldap-service: OpenLDAP 2.4.23, setup identical on both boxes, threads=64,
>> identical content.
>> hardware: Sun Microsystems sun4v SPARC Enterprise T5120
>> memory:32 GB RAM
>> os: Solaris 10 s10s_u9wos_14a
>> searches (avg/second): 1521
> Slowaris is always tedious with OpenLDAP. At a previous job, I was able to
> replace 9 slowaris boxes with 4 linux boxes, and even then, just one of the
> Linux boxes could handle the complete load it took the 9 slowaris boxes to
> I will note that if you are going to use slowaris, I highly advise you set a
> memory key rather than using on disk cache for BDB if your DB is any size
> over about 4 GB. Other than that, you'll generally just have to deal with
> the fact it will be significantly slower than Linux.
> Some time ago, I did benchmarks of Linux 2.6 vs Slowaris-x86 on identical
> hardware, and it still was noticeably slower, although not as bad as when
> using the sparc architecture.
> Quanah Gibson-Mount
> Sr. Member of Technical Staff
> Zimbra, Inc
> A Division of VMware, Inc.
> Zimbra :: the leader in open source messaging and collaboration