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minor fix of cpuusage.c in example 

git-svn-id: https://rt-thread.googlecode.com/svn/trunk@1632 bbd45198-f89e-11dd-88c7-29a3b14d5316
This commit is contained in:
mbbill@gmail.com 2011-07-15 14:45:08 +00:00
parent be5f855a44
commit c9a5379a0c
1 changed files with 2 additions and 3 deletions
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5
examples/kernel/cpuusage.c
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@ -15,26 +15,25 @@ static void cpu_usage_idle_hook()
if (total_count == 0) if (total_count == 0)
{ {
loop = 0;
/* get total count */ /* get total count */
rt_enter_critical(); rt_enter_critical();
tick = rt_tick_get(); tick = rt_tick_get();
while(rt_tick_get() - tick < CPU_USAGE_CALC_TICK) while(rt_tick_get() - tick < CPU_USAGE_CALC_TICK)
{ {
total_count ++; total_count ++;
loop = 0;
while (loop < CPU_USAGE_LOOP) loop ++; while (loop < CPU_USAGE_LOOP) loop ++;
} }
rt_exit_critical(); rt_exit_critical();
} }
count = 0; count = 0;
loop = 0;
/* get CPU usage */ /* get CPU usage */
tick = rt_tick_get(); tick = rt_tick_get();
while (rt_tick_get() - tick < CPU_USAGE_CALC_TICK) while (rt_tick_get() - tick < CPU_USAGE_CALC_TICK)
{ {
count ++; count ++;
loop = 0;
while (loop < CPU_USAGE_LOOP) loop ++; while (loop < CPU_USAGE_LOOP) loop ++;
} }