02-13-2020
Another thought I've had is this.
If you can afford to you could stop cron from the command line and see if the spikes go away.
If you can't do that (because you need the cron scheduled processes to run regularly) but you know the footprint of the spike, you could briefly stop the cron process from the command line and then watch for a spike when you issue that cron start. It won't prove anything but does it look similar.
At boot time all crontabs are read into and held in memory and that is CPU intensive. Last modified times of crontabs are also cached. The periodical wake up checks the last modified times between disk and memory. So if you break the rules and modify a crontab directly, a new job you insert won't run at all until an integrity check by cron runs. So, so, so, I guess if you write a ditty to run every 2 seconds that you can monitor and manually insert it into root's crontab, does it start running at the next spike???
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LEARN ABOUT SUSE
nwfsctrl
NWFSCTRL(1) nwfsctrl NWFSCTRL(1)
NAME
nwfsctrl - Perform server command
SYNOPSIS
nwfsctrl [ -h ] [ -S server ] [ -U user name ] [ -P password | -n ] [ -C ] [ -p ncpfs path ] -c | -o | -[f]d
nwfsctrl [ -h ] [ -S server ] [ -U user name ] [ -P password | -n ] [ -C ] [ -p ncpfs path ] server command
DESCRIPTION
nwfsctrl performs command on server.
OPTIONS
-h
With -h nwfsctrl prints a little help text.
-S server
is the name of the server you want to use.
-U user
user is the user name to use for login. To set the server's time, you need supervisor privileges.
-P password
password is the password to use for login. If neither -n nor -P are given, and the user has no open connection to the server, nwfstime
prompts for a password.
-n
-n should be given if no password is required for the login. As you need supervisor privileges for setting the date and time, this
option is probably not used very often.
-C
By default, passwords are converted to uppercase before they are sent to the server, because most servers require this. You can turn off
this conversion by -C.
-o
Open bindery.
-c
Close bindery.
-d
Down fileserver. This command will complain if there are open files on server.
-fd
Down fileserver, regardless of opened files.
load module options...
Load module module with options options... on server. Program will complain if module is already loaded.
unload module
Unload module module from server. Program will complain if module is not loaded.
mount volume
Mount volume volume.
dismount volume
Dismount volume volume. If there are open files on volume, server displays prompt on console. You must go to the server (or telnet/xcon-
sole) and hit Y or N to get beyond this point).
set variable = value
Set server settable variable variable to value value.
open bindery
Open bindery.
close bindery
Close bindery.
enable login
Enable login to file server.
disable login
Disable login to file server.
disable tts
Disable TTS. This probably does not work on Netware 4.11.
enable tts
Enable TTS. This probably does not work on Netware 4.11.
BUGS
Other commands are not written yet (volume, clear connection ...)
CREDITS
This utility was created by Petr Vandrovec (vandrove@vc.cvut.cz) and is part of ncpfs since 2.2.0.11.
nwfsctrl 2/12/1999 NWFSCTRL(1)