how long does a check_tcp service check take?

[Bishop, Dean]

Good morning,

	i am in the process of trying to squeeze as much out of my box as
possible and have some problems understanding what is happening.

	i started out on a P-II 350 with 384M RAM.  i added about 1400
services most of which are check_tcp checks.  These checks report that the
response came in 0 seconds.  i know that this isn't a true reading but it at
least tells me that it took less than 1 second.

	It actually takes about 17 minutes to complete these checks.  Doing
the math 1400/(17*50) it is taking about 3/4 seconds per check.

	i moved this installation (physically moved the hdd) to a P-4 800
(Non-Celeron).  i was hoping for an improvement.  i didn't see one.  It
still takes 17 minutes.


	Is there any way of speeding this up or am i now at the mercy of the
network?

	What would happen if i add another NIC?  Would the load be balanced?

	i have diddled with varios settings in my nagios.cfg but nothing
seems to help.

thanks in advance,
dean


nagios.cfg
----------
log_file=/usr/local/nagios/var/nagios.log
cfg_file=/usr/local/nagios/etc/checkcommands.cfg
cfg_file=/usr/local/nagios/etc/misccommands.cfg
cfg_file=/usr/local/nagios/etc/contactgroups.cfg
cfg_file=/usr/local/nagios/etc/contacts.cfg
cfg_file=/usr/local/nagios/etc/dependencies.cfg
cfg_file=/usr/local/nagios/etc/escalations.cfg
cfg_file=/usr/local/nagios/etc/hostgroups.cfg
cfg_file=/usr/local/nagios/etc/hosts.cfg
cfg_file=/usr/local/nagios/etc/services.cfg
cfg_file=/usr/local/nagios/etc/timeperiods.cfg
resource_file=/usr/local/nagios/etc/resource.cfg
status_file=/usr/local/nagios/var/status.log
nagios_user=nagios
nagios_group=nagios
check_external_commands=1
command_check_interval=-1
command_file=/usr/local/nagios/var/rw/nagios.cmd
comment_file=/usr/local/nagios/var/comment.log
downtime_file=/usr/local/nagios/var/downtime.log
lock_file=/usr/local/nagios/var/nagios.lock
temp_file=/usr/local/nagios/var/nagios.tmp
log_rotation_method=d
log_archive_path=/usr/local/nagios/var/archives
use_syslog=0
log_notifications=1
log_service_retries=1
log_host_retries=1
log_event_handlers=1
log_initial_states=1
log_external_commands=1
log_passive_service_checks=1
#global_host_event_handler=somecommand
#global_service_event_handler=somecommand
inter_check_delay_method=s
service_interleave_factor=s
max_concurrent_checks=0
service_reaper_frequency=2
sleep_time=1
service_check_timeout=60
host_check_timeout=30
event_handler_timeout=30
notification_timeout=30
ocsp_timeout=5
perfdata_timeout=5
retain_state_information=1
state_retention_file=/usr/local/nagios/var/status.sav
retention_update_interval=60
use_retained_program_state=1
interval_length=60
use_agressive_host_checking=0
execute_service_checks=1
accept_passive_service_checks=1
enable_notifications=1
enable_event_handlers=1
process_performance_data=1
host_perfdata_command=process-host-perfdata
service_perfdata_command=process-service-perfdata
obsess_over_services=0
#ocsp_command=somecommand
check_for_orphaned_services=0
check_service_freshness=1
freshness_check_interval=60
aggregate_status_updates=1
status_update_interval=15
enable_flap_detection=0
low_service_flap_threshold=5.0
high_service_flap_threshold=20.0
low_host_flap_threshold=5.0
high_host_flap_threshold=20.0
date_format=euro
admin_email=nagios
admin_pager=pagenagios


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