Linux
JANUARY 2005
sinfo
Show an overview of the available computers an their current load
NAME
sinfod - a monitoring tool for networked computers
SYNOPSIS
sinfod [-F] [-q] [-V] [-b #.#.#.#] [-c] [-n card ] [ -N nicevalue ] [ -m marker ] [ -i processname ] [-s][-W]
DESCRIPTION
sinfod distributes system information to other sinfods on your local network.
These Information include the system load, memory utilization and the ‘TOP-5’ processes on every machine.
It’s main advantage is, that these informations are broadcasted using the udp(7) protocol.
If each node broadcasts it’s information in a cooperative manner, the network load is O(N), where N is the number of nodes in your network. Other systems to monitor your cluster load (e.g. rup(1) ) are using a polling scheme where every node has to ask every other node for the system information: In that case the network load is O(N**2).
OPTIONS
-F/--foreground | Unlike normal operation, sinfod will not detach from the terminal when given this option. Some debugging informations will be visible. |
-q/--quiet | Start quietly - for init scripts. |
-V/--version | Print the version number and exit. |
-b #.#.#.#/--bcastaddress=#.#.#.# | Set the broadcast address of the sinfod. Default is 255.255.255.255. In you want to run sinfod without a network card "-b 127.0.0.1" may be necessary. |
-c/--cmdline | Broadcast the full command line of a process instead of the command only. |
-m marker/--marker=marker | Mark the machine with a name. e.g. laboratory, pool or cluster. |
-i/--ignore <process> | Don’t broadcast any information on <process> ; --ignore may be set multiple times. |
-t/--top <count> | Broadcast information on the top <count> processes; default: 5 |
-n card/--networkcard=card | Set the name of the network card whose informations will be broadcasted. (e.g. eth0). Default is the network card that saw the most traffic at the start of sinfod. |
-N nicevalue/--nice=nicevalue | Set the priority of this demon to nicevalue. Default is 15. |
-s/--spymode | Deactivate the TCP interface and the collection of received packets. The demon starts in a broadcast-only mode. |
-W/--watchdog | Start with simple watchdog. |
AUTHOR
Juergen Rinas <jrinas>