- Requirements
To build xload-snmp you need to have the headers and libs for Net (UCD) SNMP as well as the regular X11 stuff. Net SNMP is available at http://net-snmp.sourceforge.net
- Installation
Is straightforward. Do:
~$ xmkmf -a
~$ make
~# make install install.man
- USAGE
The new executable will do everything the old xload did, plus some new SNMP-related flags. A typical invocation to monitor the load of the host systhug would look like:
~$ xload -peername 'systhug' -community ~/.server-load -oid 'laLoadFloat.1'
Or an alternative with the -factor option:
~$ xload -peername 'systhug' -community ~/.server-load -oid 'laLoadInt.1' \
-factor 100
Read the manpage for more details.
- TODO
I'm not really experienced with SNMP, or Xt, so there should probably be lots of crossbar testing with various SNMP servers to make sure it works like it should.
We don't yet deal with return values which might be strings. i.e. a string result of "1.000" should be acceptable. If we get a string that's not a number we should gracefully... exit? not plot?
64 bit integer return values are also not tested. The value into which we are storing the returned SNMP data is a double, I'm just not sure how it will react to a 64 bit return value.
Binary packages.
I've found a GtkStripChart widget. If it's any good I might try switching to Gtk. Why? I think it would be neat if you could mouse over a point on the histogram and a tool tip would tell you what time that point was plotted. This would probably be easier to do by adding to or subclassing GtkStripChart than by staying with Athena. Gtk would allow me an escape from Athena and Xt lossage in general.