Corestat : Core Utilization reporting tool for UltraSPARC T1

Its been a while since I last talked to you. Last time we saw what is meant by core utilization of UltraSPARC T1 and why it is important to understand it separately from processor utilization reported by conventional tools like vmstat and mpstat. I had promised to make Corestat, the tool I developed for monitoring core utilization, available to you. Corestat is now released and can be downloaded from here .

    Usage :
       $ corestat
         corestat : Permission denied. Needs root privilege...

         Usage : corestat [-v] [-f <infile>] [-i <interval>] [-r <freq>]

                           -v               : Report version number
                          -f infile        : Filename containing sampled cpustat data
                          -i interval   : Reporting interval in sec (default = 10 sec)
                          -r freq         : CPU frequency in MHz (default = 1200 MHz)
                                        
  # corestat
                 Core Utilization
         CoreId     %Usr     %Sys     %Total
         ------        -----       -----       ------
         0               16.23     18.56     34.80
         1               26.09     13.42     39.52
         2               28.97     11.47     40.44
         3               28.63     11.74     40.38
         4               29.18     12.95     42.13
         5               29.25     11.31     40.56
         6               29.10     15.96     45.06
         7               23.97     12.55     36.51
         ------         -----       -----       ------
         Avg          26.43     13.50     39.92

Posted at 02:20PM Jun 09, 2006 by travi in Sun  |  Comments[8]