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MON(M1) MOSIX Commands MON(M1)
NAME
mon - MOSIX monitor
SYNOPSIS
mon [-v | -V | -w] [-t] [-d] [-s | -m | -m -m | -u | -f | -l]
DESCRIPTION
Mon displays useful current information about MOSIX nodes. The informa-
tion is represented as a bar-chart, which allows a comparison between
different nodes.
The display shows nodes that are assigned node numbers in
/etc/mosix/userview.map (see mosix(7)).
The following options are available:
-w Select horizontal numbering: better display - but less nodes are
visible.
-v Select vertical numbering: more nodes are visible - but denser
display.
-V Select tight vertical numbering: maximal number of nodes are visi-
ble - but even denser display.
-t Display the number of operational nodes and number of CPUs.
-d Display also dead (not responding) nodes.
-s Display the CPU-speeds.
-m Display the used vs. total memory.
-m -m Display the used vs. total swap space.
-u Display the "utilizability" (see below).
-f Display the number of frozen processes.
-l Display the load (default).
While in mon, the following keys may be used:
v Select vertical numbering.
V Select tight vertical numbering.
w Select horizontal numbering.
a Select automatic numbering (vertical numbering will be selected if
it would make the difference between viewing all nodes or not -
otherwise, horizontal numbering is selected).
s Display CPU-speeds and number of nodes (if more than 1).
10000 units represent a standard processor (currently Pentium-IV
CPU at 3GHz).
m Display used memory vs. total memory: the used memory is displayed
as a solid bar while the total memory is extended with '+' signs.
The memory is shown in Megabytes.
m m (pressing m twice) Display used swap-space vs. total swap-space:
the used swap-space is displayed as a solid bar while the total
swap-space is extended with '+' signs. Swap-space is shown in
Gigabytes and is accurate to 0.1GB.
u Display the percentage of the CPU "utilizability". A node is con-
sidered utilizable when all its CPUs are either running a process,
or when no processes wish to run: this excludes the situation when
there are processes that wish to run but cannot because they wait
for a swap-page. Utilizability should normally be 100% - other-
wise, it means that memory shortage causes the node to slow down.
f Display the number of frozen processes.
l Display loads. The load represents one CPU-bound process that
runs on a node with a single CPU under normal conditions. The
load increases proportionally on slower CPUs, and decreases pro-
portionally on faster CPUs and on nodes with more than one CPU.
The load also increases when the utilizability is below 100%.
d Display also dead (not-responding) nodes.
D Stop displaying dead nodes.
t Toggle displaying the count of operational nodes.
Right-Arrow
Move one node to the right (when not all nodes fit on the screen).
Left-Arrow
Move one node to the left (when not all nodes fit on the screen).
n Move one screen to the right (when not all nodes fit on one
screen).
p Move one screen to the left (when not all nodes fit on one
screen).
h Bring up a help screen.
Enter Redraw the screen.
q Quit Mon.
SEE ALSO
mosix(7).
MOSIX May 2006 MOSIX
Copyright © 1999-2008 Amnon Barak. All rights reserved.