Re: restricting slapd memory consumption

[Quanah Gibson-Mount <quanah@zimbra.com>]

--On April 14, 2008 5:04:24 PM +0200 Ralf Narozny <rnarozny@web.de> wrote:

> > Roughly ... assuming that you are using a decent memory allocator, and
> > that you have applied the memory leak patches for Berkeley DB (I don't
> > see that you provide your Berkeley DB version). The glibc memory
> > allocator is probably going to do quite badly in this specific
> > scenario (bulk add over the wire), using one of the better allocators
> > (e.g. hoard, tcalloc), would probably reduce this value considerably.
> > Howard has published extensive benchmarks on this ...
>
> It is hard to know what info to provide for you to be able to help:
>
> BDB 4.4.20 with no patches.
> Linux Kernel 2.6.21.5 SMP
> glibc-2.7-1
> libc6 2.7-6
>
> I'm not the one compiling the packet so I mainly have no idea of how to
> change anything like that.

One problem is that glibc is a terrible memory allocator.  You really 
should use an alternative like tcmalloc or hoard.

--Quanah

--

Quanah Gibson-Mount
Principal Software Engineer
Zimbra, Inc
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