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Hi Quanah,
I have started doing tests with Gentoo Linux running openldap 2.4.35, glibc 2.16 and linux kernel 3.4, 3.8 and 3.9-rc5. I have tried ext2, ext4, reiserfs and jfs. Ldapadd is still very slow compared to BSD regardless of the openldap backend.
Also a correction to the initial report: using a memory based file system, ldapadd the whole database took 22 min.
Leo
On Fri, Apr 5, 2013 at 5:48 PM, Quanah Gibson-Mount quanah@zimbra.comwrote:
--On Friday, April 05, 2013 11:46 PM +0000 quanah@zimbra.com wrote:
--On Friday, April 05, 2013 11:36 PM +0000 lm5@ualberta.ca wrote:
Full_Name: Leo Mocofan
Version: 2.4.31 OS: Debian Testing URL: ftp://ftp.openldap.org/**incoming/ftp://ftp.openldap.org/incoming/ Submission from: (NULL) (129.128.11.107)
If you are going to test back-mdb, then you need to use a current OpenLDAP release (2.4.35).
In any case, I don't see a bug report here? It sounds more like you're asking for tuning advice? I would ask what filesystem you are using (ext2? ext4?) etc. For ext4, I had to modify dirty_bytes to keep the Debian/Ubuntu flush process from killing load performance.
Oh, one other note -- I advise avoiding the debian/ubuntu build versions of BDB, if that is what you are using. They do not build BDB with the correct configure options, seriously impacting performance.
--Quanah
--
Quanah Gibson-Mount Sr. Member of Technical Staff Zimbra, Inc A Division of VMware, Inc.
Zimbra :: the leader in open source messaging and collaboration
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<div dir=3D"ltr"><div><div>Hi Quanah,<br><br></div>I have started doing tes= ts with Gentoo Linux running openldap 2.4.35, glibc 2.16 and linux kernel 3= .4, 3.8 and 3.9-rc5. I have tried ext2, ext4, reiserfs and jfs. Ldapadd is = still very slow compared to BSD regardless of the openldap backend. <br> <br></div><div>Also a correction to the initial report: using a memory base= d file system, ldapadd the whole database took 22 min.<br></div><div><br></= div>Leo<br></div><div class=3D"gmail_extra"><br><br><div class=3D"gmail_quo= te"> On Fri, Apr 5, 2013 at 5:48 PM, Quanah Gibson-Mount <span dir=3D"ltr"><<= a href=3D"mailto:quanah@zimbra.com" target=3D"_blank">quanah@zimbra.com</a>= ></span> wrote:<br><blockquote class=3D"gmail_quote" style=3D"margin:0 0= 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> <div class=3D"im">--On Friday, April 05, 2013 11:46 PM +0000 <a href=3D"mai= lto:quanah@zimbra.com" target=3D"_blank">quanah@zimbra.com</a> wrote:<br> <br> </div><div class=3D"im"><blockquote class=3D"gmail_quote" style=3D"margin:0= 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> --On Friday, April 05, 2013 11:36 PM +0000 <a href=3D"mailto:lm5@ualberta.c= a" target=3D"_blank">lm5@ualberta.ca</a> wrote:<br> <br> <blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p= x #ccc solid;padding-left:1ex"> Full_Name: Leo Mocofan<br> Version: 2.4.31<br> OS: Debian Testing<br> URL: <a href=3D"ftp://ftp.openldap.org/incoming/" target=3D"_blank">ftp://f= tp.openldap.org/<u></u>incoming/</a><br> Submission from: (NULL) (129.128.11.107)<br> </blockquote> <br> If you are going to test back-mdb, then you need to use a current<br> OpenLDAP =A0release (2.4.35).<br> <br> In any case, I don't see a bug report here? =A0It sounds more like you&= #39;re<br> asking for tuning advice? =A0I would ask what filesystem you are using<br> (ext2? =A0ext4?) etc. =A0For ext4, I had to modify dirty_bytes to keep the<= br> Debian/Ubuntu flush process from killing load performance.<br> </blockquote> <br></div> Oh, one other note -- I advise avoiding the debian/ubuntu build versions of= BDB, if that is what you are using. =A0They do not build BDB with the corr= ect configure options, seriously impacting performance.<div class=3D"HOEnZb= "> <div class=3D"h5"><br> <br> --Quanah<br> <br> --<br> <br> Quanah Gibson-Mount<br> Sr. Member of Technical Staff<br> Zimbra, Inc<br> A Division of VMware, Inc.<br> --------------------<br> Zimbra :: =A0the leader in open source messaging and collaboration<br> <br> </div></div></blockquote></div><br></div>
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