flooding speed

Jeff A. Earickson jaearick@colby.edu
Thu Jan 12 03:01:38 UTC 2006

When nscd first appeared (Solaris 8 I think), it *really* crippled our
web server performance.  It also really gets underfoot if you are running
named.  I nuke this daemon on every Sun box I've got, useless IMHO...

Jeff Earickson
Colby College

On Wed, 11 Jan 2006, Vernon Schryver wrote:

> Date: Wed, 11 Jan 2006 16:34:55 -0700 (MST)
> From: Vernon Schryver <vjs@calcite.rhyolite.com>
> To: dcc@calcite.rhyolite.com
> Subject: flooding speed
> I've seen something interesting on a site that uses sendmail+dccm+MAPS+SBL
> and runs a DCC server on Solaris.  The DCC hit rate had dropped
> significantly.  Flooding from its peers was always a day or two behind.
> Nscd had grown to more than 3 GBytes and a resident set of more than 1 GByte.
> After nscd was bounced, ncsd was about 1000 times smaller, and dccd
> started keeping up with the incoming floods.
> More interesting (to me), the DCC hit rate increased by more than 3 times,
> which shows the value of up-to-the-second DCC data.
> Vernon Schryver    vjs@rhyolite.com
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