nagios speed to refresh

[Dave Stern]

I have a nagios 2.3.1 install that is acting laggy. Updates can be as
old as a half hour for the ~2200 services I monitor. I'm currently
using active and passive checks, generally with 10 minute check 
intervals altho some have intervals of 30 minutes so as not to
kill these hosts. I intend to reduce the check interval and am 
considering changing inter_check_delay_method from smart to something 
else. By default, inter_check_delay_method=s is commented out of
nagios.cfg and just uncommenting makes it complain when I run
nagios -v  saying UNKNOWN VARIABLE so I can't even change it to 
"n" or "d" or some small number of seconds.  I'm guessing the
config I have may need to be converted(?)

I'm looking to get information no older than 10 minute (assuming 
the nagios server can handle it)

Has anyone had any experience with this?  Here are some values of 
interest:
command_check_interval=-1
freshness_check_interval=60
status_update_interval=30

% nagios -s nagios.cfg
...
HOST SCHEDULING INFORMATION
---------------------------
Total hosts:                     700
Total scheduled hosts:           0
Host inter-check delay method:   SMART
Average host check interval:     0.00 sec
Host inter-check delay:          0.00 sec
Max host check spread:           30 min
First scheduled check:           N/A
Last scheduled check:            N/A


SERVICE SCHEDULING INFORMATION
-------------------------------
Total services:                     2244
Total scheduled services:           2244
Service inter-check delay method:   SMART
Average service check interval:     1782.35 sec
Inter-check delay:                  0.79 sec
Interleave factor method:           SMART
Average services per host:          3.21
Service interleave factor:          4
Max service check spread:           30 min
...
CHECK PROCESSING INFORMATION
----------------------------
Service check reaper interval:      10 sec
Max concurrent service checks:      Unlimited

TIA


  =-=-=-=-=-=-=-=-=-=-  generated by /dev/dave -=-=-=-=-=-=-=-=-=-=-=-=
  David Stern                                    University of Maryland
            Institute for Advanced Computer Studies

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