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Linux arm 3.8.13-bone18 #1 SMP Wed May 15 13:48:09 MST 2013 armv7l

The programs included with the Debian GNU/Linux system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.

Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
Last login: Thu Jan  6 15:34:30 2000 from 192.168.254.165
root@arm:~# top
top - 03:17:57 up 6 days, 10:17,  3 users,  load average: 0.51, 0.60, 0.58
Tasks:  73 total,   1 running,  72 sleeping,   0 stopped,   0 zombie
%Cpu(s): 59.9 us,  2.7 sy,  0.0 ni, 37.0 id,  0.0 wa,  0.0 hi,  0.3 si,  0.0 st
KiB Mem:    507832 total,    98624 used,   409208 free,    10704 buffers
KiB Swap:        0 total,        0 used,        0 free,    61756 cached

  PID USER      PR  NI  VIRT  RES  SHR S  %CPU %MEM    TIME+  COMMAND
 3748 xxxxxxx   20   0  1168  264  212 S  59.9  0.1  18:41.04 load-test
 3609 root      20   0  2664 1108  784 R   1.6  0.2   5:34.29 top
    3 root      20   0     0    0    0 S   0.3  0.0   0:03.17 ksoftirqd/0
    1 root      20   0  1684  644  540 S   0.0  0.1   0:25.24 init
    2 root      20   0     0    0    0 S   0.0  0.0   0:00.36 kthreadd
    5 root       0 -20     0    0    0 S   0.0  0.0   0:00.00 kworker/0:0H
    7 root       0 -20     0    0    0 S   0.0  0.0   0:00.00 kworker/u:0H
    8 root      rt   0     0    0    0 S   0.0  0.0   0:00.00 migration/0
    9 root      20   0     0    0    0 S   0.0  0.0   0:00.00 rcu_bh
   10 root      20   0     0    0    0 S   0.0  0.0   0:18.14 rcu_sched
   11 root      rt   0     0    0    0 S   0.0  0.0   0:11.55 watchdog/0
   12 root       0 -20     0    0    0 S   0.0  0.0   0:00.00 khelper
   13 root      20   0     0    0    0 S   0.0  0.0   0:00.00 kdevtmpfs
   14 root       0 -20     0    0    0 S   0.0  0.0   0:00.00 netns
   16 root      20   0     0    0    0 S   0.0  0.0   0:00.26 bdi-default
   17 root       0 -20     0    0    0 S   0.0  0.0   0:00.00 kintegrityd
   18 root       0 -20     0    0    0 S   0.0  0.0   0:00.00 kblockd
root@arm:~# cpufreq-info
cpufrequtils 008: cpufreq-info (C) Dominik Brodowski 2004-2009
Report errors and bugs to cpufreq@vger.kernel.org, please.
analyzing CPU 0:
  driver: generic_cpu0
  CPUs which run at the same hardware frequency: 0
  CPUs which need to have their frequency coordinated by software: 0
  maximum transition latency: 300 us.
  hardware limits: 300 MHz - 1000 MHz
  available frequency steps: 300 MHz, 600 MHz, 800 MHz, 1000 MHz
  available cpufreq governors: conservative, ondemand, userspace, powersave, performance
  current policy: frequency should be within 300 MHz and 1000 MHz.
                  The governor "ondemand" may decide which speed to use
                  within this range.
  current CPU frequency is 300 MHz (asserted by call to hardware).
  cpufreq stats: 300 MHz:nan%, 600 MHz:nan%, 800 MHz:nan%, 1000 MHz:nan%


load-test code:

#include <stdio.h>
#include  <unistd.h>

int main(int argc, char **argv)
{
    unsigned int index = 0;
    unsigned   int  mSeconds = 500;
    int  returnCode;

    while(1)
    {
        if((++index % 10240) == 0 ){
            returnCode = usleep(mSeconds);
            index = 0;
        }
    }

    return 0;
}