FilterDNS load averages

[humm3r]

Hi Everyone,

I've been noticing insane load averages periodically on my box. After trying to look into logs and activity etc, I am noticing that whenever the filter reloads (say after updating PfBLockerNG or enabling/disabling actual firewall rules for the interfaces) I have a LOT of filterDNS processes going. See the paste below.
Does anyone have any suggestions on where to begin diagnosing this particular issue? I tried a reinstall to see if it made a difference but seems not.
I need to try keeping this on 2.3.2 as I only encountered this issue when updating 2.3.2 to 2.3.2_p1, so i'm not sure if something changed on this update? new bug?

last pid: 73230;  load averages: 129.85, 30.77, 11.11  up 0+13:48:35    10:03:30
1637 processes:22 running, 1596 sleeping, 17 waiting, 2 lock

Mem: 344M Active, 961M Inact, 756M Wired, 396M Buf, 1783M Free
Swap: 8192M Total, 8192M Free

PID USERNAME PRI NICE  SIZE    RES STATE  C  TIME    WCPU COMMAND
56018 unbound  74    0  114M 94860K RUN    0  0:02  7.37% /usr/local/sbin/unbound -c /var/unbound/un
67772 root      73    0 16868K  3888K RUN    1  0:00  3.56% /sbin/pfctl -o basic -f /tmp/rules.debug
39796 root      22    0  1209M  645M bpf    0  18:17  2.59% /usr/local/bin/snort -R 11578 -D -l /var/l
61715 root      25    0  270M 43784K piperd  0  0:00  0.98% php-fpm: pool nginx (php-fpm)
  11 root    155 ki31    0K    32K RUN    1 797:34  0.68% [idle{idle: cpu1}]
61122 root      22    0  1467M  138M uwait  1  0:00  0.68% /usr/local/sbin/filterdns -p /var/run/filt
61122 root      25    0  1467M  138M umtxn  1  0:00  0.68% /usr/local/sbin/filterdns -p /var/run/filt
  11 root    155 ki31    0K    32K RUN    0 785:18  0.59% [idle{idle: cpu0}]
61122 root      23    0  1467M  138M uwait  0  0:00  0.59% /usr/local/sbin/filterdns -p /var/run/filt
61122 root      20    0  1467M  138M uwait  0  0:00  0.59% /usr/local/sbin/filterdns -p /var/run/filt
61122 root      22    0  1467M  138M umtxn  1  0:00  0.59% /usr/local/sbin/filterdns -p /var/run/filt
61122 root      22    0  1467M  138M uwait  0  0:00  0.59% /usr/local/sbin/filterdns -p /var/run/filt
61122 root      22    0  1467M  138M uwait  0  0:00  0.59% /usr/local/sbin/filterdns -p /var/run/filt
61122 root      21    0  1467M  138M uwait  0  0:00  0.59% /usr/local/sbin/filterdns -p /var/run/filt
61122 root      24    0  1467M  138M uwait  1  0:00  0.59% /usr/local/sbin/filterdns -p /var/run/filt
61122 root      20    0  1467M  138M uwait  0  0:00  0.49% /usr/local/sbin/filterdns -p /var/run/filt
61122 root      20    0  1467M  138M uwait  1  0:00  0.49% /usr/local/sbin/filterdns -p /var/run/filt
61122 root      21    0  1467M  138M uwait  1  0:00  0.49% /usr/local/sbin/filterdns -p /var/run/filt