309 
310   // Get kstat cpu_stat counters for every CPU
311   // loop over kstat to find our cpu_stat(s)
312   int i = 0;
313   for (kstat_t* kstat = _counters.kstat_ctrl->kc_chain; kstat != NULL; kstat = kstat->ks_next) {
314     if (strncmp(kstat->ks_module, "cpu_stat", 8) == 0) {
315       if (kstat_read(_counters.kstat_ctrl, kstat, NULL) == OS_ERR) {
316         continue;
317       }
318       if (i == _counters.nProcs) {
319         // more cpu_stats than reported CPUs
320         break;
321       }
322       _counters.jvmTicks[i++].kstat = kstat;
323     }
324   }
325   return true;
326 }
327 
328 CPUPerformanceInterface::CPUPerformance::~CPUPerformance() {
329   if (_counters.jvmTicks != NULL) {
330     FREE_C_HEAP_ARRAY(char, _counters.jvmTicks);
331   }
332   if (_counters.kstat_ctrl != NULL) {
333     kstat_close(_counters.kstat_ctrl);
334   }
335 }
336 
337 int CPUPerformanceInterface::CPUPerformance::cpu_load(int which_logical_cpu, double* cpu_load) {
338   assert(cpu_load != NULL, "cpu_load pointer is NULL!");
339   double t = .0;
340   if (-1 == which_logical_cpu) {
341     for (int i = 0; i < _counters.nProcs; i++) {
342       t += get_cpu_load(i, &_counters);
343     }
344     // Cap total systemload to 1.0
345     t = MIN2<double>((t / _counters.nProcs), 1.0);
346   } else {
347     t = MIN2<double>(get_cpu_load(which_logical_cpu, &_counters), 1.0);
348   }
349 
350   *cpu_load = t;
351   return OS_OK;

309 
310   // Get kstat cpu_stat counters for every CPU
311   // loop over kstat to find our cpu_stat(s)
312   int i = 0;
313   for (kstat_t* kstat = _counters.kstat_ctrl->kc_chain; kstat != NULL; kstat = kstat->ks_next) {
314     if (strncmp(kstat->ks_module, "cpu_stat", 8) == 0) {
315       if (kstat_read(_counters.kstat_ctrl, kstat, NULL) == OS_ERR) {
316         continue;
317       }
318       if (i == _counters.nProcs) {
319         // more cpu_stats than reported CPUs
320         break;
321       }
322       _counters.jvmTicks[i++].kstat = kstat;
323     }
324   }
325   return true;
326 }
327 
328 CPUPerformanceInterface::CPUPerformance::~CPUPerformance() {
329   FREE_C_HEAP_ARRAY(char, _counters.jvmTicks);


330   if (_counters.kstat_ctrl != NULL) {
331     kstat_close(_counters.kstat_ctrl);
332   }
333 }
334 
335 int CPUPerformanceInterface::CPUPerformance::cpu_load(int which_logical_cpu, double* cpu_load) {
336   assert(cpu_load != NULL, "cpu_load pointer is NULL!");
337   double t = .0;
338   if (-1 == which_logical_cpu) {
339     for (int i = 0; i < _counters.nProcs; i++) {
340       t += get_cpu_load(i, &_counters);
341     }
342     // Cap total systemload to 1.0
343     t = MIN2<double>((t / _counters.nProcs), 1.0);
344   } else {
345     t = MIN2<double>(get_cpu_load(which_logical_cpu, &_counters), 1.0);
346   }
347 
348   *cpu_load = t;
349   return OS_OK;