dccd memory usage

Krzysztof Snopek ksnopek@ely.pg.gda.pl
Wed Nov 3 09:57:25 UTC 2004

On Tue, 5 Oct 2004, Vernon Schryver wrote:

> > 	The real issue is that this server isn't just a dcc server. If it
> > was, I don't think there'd be a problem. If it was required, I could
> > increase the memory to 3G, but if this triggers dccd to use 2.5G, then I get
> > no overall benefit (other than dccd having more memory - which I don't know
> > enough about to judge) - the other processes are still limited to 500M.
> Increasing physical memory to 3 GByte should increase the window, but
> unless the database wants to be bigger than it is given the default
> expiration times, it won't use more memory.

Maybe this will be of some interest for you:
 Just recently I've increased RAM from 1 GB to 3 GB on public DCC server
dcc1.ely.pg.gda.pl (Solaris 9, Intel).
 Previously 'cdcc stats' showed about 400 MB as 'used ... DB bytes', now
it shows 1.2 GB.
 'Top' shows: Memory: 3072M real, 1598M free
and ls -l /var/dcc :
-rw-r--r-- 1 root other 1275015168 Nov 3 10:43 dcc_db
-rw-r--r-- 1 root other 1358622720 Nov 3 02:18 dcc_db-old
-rw-r--r-- 1 root other 647958528 Nov 3 02:20 dcc_db.hash

       Krzysztof Snopek

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