On 12/16/2010 14:48, Chuck Swiger wrote:
Hi, bind-users--
I'd recently updated a machine to FreeBSD 7-STABLE, and I've noticed
that named from the base system (which claims to be BIND 9.4-ESV-R4)
is using more than twice as much memory as it used to:
Hey Chuck, sorry I didn't respond to this on the FreeBSD list. In
FreeBSD 6.x we had BIND 9.3.x. BIND 9.4.x definitely uses more memory,
this is a feature. :)
PID USERNAME THR PRI NICE SIZE RES STATE TIME WCPU
COMMAND 706 bind 4 4 0 69424K 57292K kqread 0:09
0.00% named
It's serving about 20 zones with total record size of less than 100K,
and has the following option block set:
options { directory "/var/named"; recursive-clients 400;
clients-per-query 210; max-clients-per-query 220; max-cache-size
10m; };
This box was previously running FreeBSD-6.4 and dns/bind94 port,
Doubtful, as the code for BIND 9.4 in the base in FreeBSD 7.x is
identical to that in the port. It's possible of course, but I can't see
any reason off hand that the same BIND code running on FreeBSD 6 would
use twice as much memory on 7.
and
named never crept above 30M VSIZE/RES even under heavy load (ie,
"adnslogres -c 100" against a million line httpd-access.log file);
the size above is from named running for about a day, *without*
putting any significant load upon the nameserver....
That must have been a very high percentage of the same hostnames showing
up in those million lines if all of them fit into a 10 meg cache.
hth,
Doug
--
Nothin' ever doesn't change, but nothin' changes much.
-- OK Go
Breadth of IT experience, and depth of knowledge in the DNS.
Yours for the right price. :) http://SupersetSolutions.com/
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