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Re: [OT] CDB performance

From: Victor Duchovni (Victor.DuchovniMorganStanley.com)
Date: Thu Jul 07 2005 - 16:37:11 CDT


On Thu, Jul 07, 2005 at 11:28:46PM +0200, Andrzej Kuku?a wrote:

> On 7/7/05, Victor Duchovni <Victor.Duchovnimorganstanley.com> wrote:
> > On Thu, Jul 07, 2005 at 10:34:35PM +0200, Andrzej Kuku?a wrote:
> >
> >
> > The recommended CDB implemented for Postfix is Michael Tokarev's tinycdb.
> > The code in dict_cdb_lookup() does not remap the file on every lookup.
>
> True, but the underlying tinycdb's cdb_init() calls mmap(2).
> Not a problem with Postfix ;)

This is not and cannot be a problem for Postfix, cdb_init() is called
in dict_cdb_open() not dict_cdb_lookup().

--
        Viktor.

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