24

I'm using munin as a tool for monitoring my servers. On some of the graphs, the units are marked with a 'm'. For instance, my apache accesses graph is labeled 100m, 200m, 300m, along the y-axis. What does the 'm' mean? I understand 'M' (caps) is mega as in megabytes, the 'k' is kilo, the 'G' is giga, but what about 'm'? At first I thought it was million, but there's no way apache is serving 100 million accesses even per decade.

chicks
  • 3,639
  • 10
  • 26
  • 36
nbv4
  • 593
  • 3
  • 9
  • 18
  • See also [this question on the same topic, with a sample graph and comments that line up with comments here](http://serverfault.com/questions/326281/how-to-read-the-scale-of-the-munin-monitoring-system-tomcat-accesses-by-day-gra). Also I second [Edward Ross's comments](http://serverfault.com/questions/123761/what-does-the-m-unit-in-munin-mean#comment318794_123766) about changing time units to deal with this very unclear way of handling fractional data values. – Alan Carwile Sep 11 '13 at 16:59

2 Answers2

31

The 'm' stands for milli, meaning 10^(-3) or 1/1000th of the unit.

joschi
  • 20,747
  • 3
  • 46
  • 50
  • 4
    The confusing thing with munin here appears to be using the "m" on accesses per second axis, to indicate a fractional access, which is a slightly strange concept. It might be more intuitive for munin to switch the time period, to say accesses per minute or accesses per hour. – Edward Ross Oct 31 '11 at 11:25
0

I don't know what exactly you are graphing there but it could be the average processing time per request. So it would be milliseconds.

Raffael Luthiger
  • 2,011
  • 2
  • 17
  • 26