Benchmark from home/X201 (2 cores, 4 threads):

   ikq (1): 72.192397 
   ikq (2): INFO: Total processing time for 2 hosts: 74.1845
   ikq* (6): INFO: Total processing time: 117.572312
   ikq* + ikr3 (9): INFO: Total processing time: 120.307662
   ikq* + ikr (14): INFO: Total processing time: 139.769807
   ikq* + ikr (18): INFO: Total processing time: 186.354398
   ikq* + ikr (22): INFO: Total processing time: 225.793533
   ikq* + ikr (26): INFO: Total processing time: 237.06687
   ikq* + ikr (31): INFO: Total processing time: 276.912414


ikr07.ethz.ch ikr09.ethz.ch ikr10.ethz.ch ikr11.ethz.ch
ikr13.ethz.ch ikr14.ethz.ch ikr15.ethz.ch ikr16.ethz.ch
ikr17.ethz.ch ikr19.ethz.ch ikr20.ethz.ch ikr21.ethz.ch
ikr23.ethz.ch ikr24.ethz.ch ikr25.ethz.ch ikr26.ethz.ch
ikr27.ethz.ch ikr28.ethz.ch ikr29.ethz.ch ikr30.ethz.ch
ikr31.ethz.ch

cdist -c ~/p/cdist-nutzung -p ikq02.ethz.ch ikq03.ethz.ch ikq04.ethz.ch ikq05.ethz.ch ikq06.ethz.ch ikq07.ethz.ch ikr01.ethz.ch ikr02.ethz.ch ikr03.ethz.ch ikr05.ethz.ch ikr07.ethz.ch ikr09.ethz.ch ikr10.ethz.ch ikr11.ethz.ch ikr13.ethz.ch ikr14.ethz.ch ikr15.ethz.ch ikr16.ethz.ch ikr17.ethz.ch ikr19.ethz.ch ikr20.ethz.ch ikr21.ethz.ch


--------------------------------------------------------------------------------
INFO: Total processing time for 1 hosts: 72.166661
INFO: Total processing time for 2 hosts: 76.633228
INFO: Total processing time for 3 host(s): 77.199817
INFO: Total processing time for 4 host(s): 94.045175
INFO: Total processing time for 5 host(s): 103.226354
INFO: Total processing time for 6 host(s): 107.76097
INFO: Total processing time for 7 host(s): 101.571705
INFO: Total processing time for 8 host(s): 107.600093
INFO: Total processing time for 9 host(s): 116.500371
INFO: Total processing time for 10 host(s): 119.445805
INFO: Total processing time for 11 host(s): 123.944385
INFO: Total processing time for 12 host(s): 130.499098
INFO: Total processing time for 13 host(s): 137.250861
INFO: Total processing time for 14 host(s): 154.9841
INFO: Total processing time for 15 host(s): 139.659637
INFO: Total processing time for 16 host(s): 142.70005
INFO: Total processing time for 17 host(s): 148.541452
INFO: Total processing time for 18 host(s): 159.360809
INFO: Total processing time for 19 host(s): 171.907864
INFO: Total processing time for 20 host(s): 178.76695
INFO: Total processing time for 21 host(s): 183.856671
INFO: Total processing time for 22 host(s): 194.504221
INFO: Total processing time for 23 host(s): 207.314842
INFO: Total processing time for 24 host(s): 215.846502
INFO: Total processing time for 25 host(s): 217.223581
INFO: Total processing time for 26 host(s): 238.591705
INFO: Total processing time for 27 host(s): 238.478493
INFO: Total processing time for 28 host(s): 246.058718
INFO: Total processing time for 29 host(s): 264.208372
INFO: Total processing time for 30 host(s): 265.560685
INFO: Total processing time for 31 host(s): 282.264488

--------------------------------------------------------------------------------
Use:
   grep "^INFO: Total processing time" doc/dev/logs/2011-09-12 | sed 's/.*: //'
   octave
      times = [ /* paste here ]
      plot(times)
      # keep the graph
      hold on
      # Scale linearly with the single host value
      plot((1:31)*times(1))