kern_return_t
host_statistics(
host_t host,
host_flavor_t flavor,
host_info_t info,
mach_msg_type_number_t *count)
{
if (host == HOST_NULL)
return(KERN_INVALID_HOST);
switch(flavor) {
case HOST_LOAD_INFO: {
register host_load_info_t load_info;
extern integer_t avenrun[3], mach_factor[3];
if (*count < HOST_LOAD_INFO_COUNT)
return(KERN_FAILURE);
load_info = (host_load_info_t) info;
bcopy((char *) avenrun,
(char *) load_info->avenrun,
sizeof avenrun);
bcopy((char *) mach_factor,
(char *) load_info->mach_factor,
sizeof mach_factor);
*count = HOST_LOAD_INFO_COUNT;
return(KERN_SUCCESS);
}
case HOST_VM_INFO: {
register vm_statistics_t stat;
vm_statistics_data_t host_vm_stat;
extern int vm_page_free_count, vm_page_active_count,
vm_page_inactive_count, vm_page_wire_count;
if (*count < HOST_VM_INFO_COUNT)
return(KERN_FAILURE);
stat = &vm_stat[0];
host_vm_stat = *stat;
#if NCPUS > 1
{
register int i;
for (i = 1; i < NCPUS; i++) {
host_vm_stat.zero_fill_count +=
stat->zero_fill_count;
host_vm_stat.reactivations +=
stat->reactivations;
host_vm_stat.pageins += stat->pageins;
host_vm_stat.pageouts += stat->pageouts;
host_vm_stat.faults += stat->faults;
host_vm_stat.cow_faults += stat->cow_faults;
host_vm_stat.lookups += stat->lookups;
host_vm_stat.hits += stat->hits;
stat++;
}
}
#endif
stat = (vm_statistics_t) info;
stat->free_count = vm_page_free_count;
stat->active_count = vm_page_active_count;
stat->inactive_count = vm_page_inactive_count;
stat->wire_count = vm_page_wire_count;
stat->zero_fill_count = host_vm_stat.zero_fill_count;
stat->reactivations = host_vm_stat.reactivations;
stat->pageins = host_vm_stat.pageins;
stat->pageouts = host_vm_stat.pageouts;
stat->faults = host_vm_stat.faults;
stat->cow_faults = host_vm_stat.cow_faults;
stat->lookups = host_vm_stat.lookups;
stat->hits = host_vm_stat.hits;
*count = HOST_VM_INFO_COUNT;
return(KERN_SUCCESS);
}
case HOST_CPU_LOAD_INFO: {
host_cpu_load_info_t cpu_load_info;
unsigned long ticks_value1, ticks_value2;
int i;
#define GET_TICKS_VALUE(__cpu,__state) \
MACRO_BEGIN \
do { \
ticks_value1 = *(volatile integer_t *) \
(&machine_slot[(__cpu)].cpu_ticks[(__state)]); \
ticks_value2 = *(volatile integer_t *) \
(&machine_slot[(__cpu)].cpu_ticks[(__state)]); \
} while (ticks_value1 != ticks_value2); \
cpu_load_info->cpu_ticks[(__state)] += ticks_value1; \
MACRO_END
if (*count < HOST_CPU_LOAD_INFO_COUNT)
return KERN_FAILURE;
cpu_load_info = (host_cpu_load_info_t) info;
cpu_load_info->cpu_ticks[CPU_STATE_USER] = 0;
cpu_load_info->cpu_ticks[CPU_STATE_NICE] = 0;
cpu_load_info->cpu_ticks[CPU_STATE_SYSTEM] = 0;
cpu_load_info->cpu_ticks[CPU_STATE_IDLE] = 0;
for (i = 0; i < NCPUS; i++) {
if (!machine_slot[i].is_cpu ||
!machine_slot[i].running)
continue;
GET_TICKS_VALUE(i, CPU_STATE_USER);
GET_TICKS_VALUE(i, CPU_STATE_NICE);
GET_TICKS_VALUE(i, CPU_STATE_SYSTEM);
GET_TICKS_VALUE(i, CPU_STATE_IDLE);
}
*count = HOST_CPU_LOAD_INFO_COUNT;
return KERN_SUCCESS;
}
default:
return(KERN_INVALID_ARGUMENT);
}
}
kern_return_t
host_statistics(
host_t host,
host_flavor_t flavor,
host_info_t info,
mach_msg_type_number_t *count)
{
uint32_t i;
if (host == HOST_NULL)
return (KERN_INVALID_HOST);
switch(flavor) {
case HOST_LOAD_INFO:
{
host_load_info_t load_info;
if (*count < HOST_LOAD_INFO_COUNT)
return (KERN_FAILURE);
load_info = (host_load_info_t) info;
bcopy((char *) avenrun,
(char *) load_info->avenrun, sizeof avenrun);
bcopy((char *) mach_factor,
(char *) load_info->mach_factor, sizeof mach_factor);
*count = HOST_LOAD_INFO_COUNT;
return (KERN_SUCCESS);
}
case HOST_VM_INFO:
{
register processor_t processor;
register vm_statistics64_t stat;
vm_statistics64_data_t host_vm_stat;
vm_statistics_t stat32;
mach_msg_type_number_t original_count;
if (*count < HOST_VM_INFO_REV0_COUNT)
return (KERN_FAILURE);
processor = processor_list;
stat = &PROCESSOR_DATA(processor, vm_stat);
host_vm_stat = *stat;
if (processor_count > 1) {
simple_lock(&processor_list_lock);
while ((processor = processor->processor_list) != NULL) {
stat = &PROCESSOR_DATA(processor, vm_stat);
host_vm_stat.zero_fill_count += stat->zero_fill_count;
host_vm_stat.reactivations += stat->reactivations;
host_vm_stat.pageins += stat->pageins;
host_vm_stat.pageouts += stat->pageouts;
host_vm_stat.faults += stat->faults;
host_vm_stat.cow_faults += stat->cow_faults;
host_vm_stat.lookups += stat->lookups;
host_vm_stat.hits += stat->hits;
}
simple_unlock(&processor_list_lock);
}
stat32 = (vm_statistics_t) info;
stat32->free_count = VM_STATISTICS_TRUNCATE_TO_32_BIT(vm_page_free_count + vm_page_speculative_count);
stat32->active_count = VM_STATISTICS_TRUNCATE_TO_32_BIT(vm_page_active_count);
if (vm_page_local_q) {
for (i = 0; i < vm_page_local_q_count; i++) {
struct vpl *lq;
lq = &vm_page_local_q[i].vpl_un.vpl;
stat32->active_count += VM_STATISTICS_TRUNCATE_TO_32_BIT(lq->vpl_count);
}
}
stat32->inactive_count = VM_STATISTICS_TRUNCATE_TO_32_BIT(vm_page_inactive_count);
#if CONFIG_EMBEDDED
stat32->wire_count = VM_STATISTICS_TRUNCATE_TO_32_BIT(vm_page_wire_count);
#else
stat32->wire_count = VM_STATISTICS_TRUNCATE_TO_32_BIT(vm_page_wire_count + vm_page_throttled_count + vm_lopage_free_count);
#endif
stat32->zero_fill_count = VM_STATISTICS_TRUNCATE_TO_32_BIT(host_vm_stat.zero_fill_count);
stat32->reactivations = VM_STATISTICS_TRUNCATE_TO_32_BIT(host_vm_stat.reactivations);
stat32->pageins = VM_STATISTICS_TRUNCATE_TO_32_BIT(host_vm_stat.pageins);
stat32->pageouts = VM_STATISTICS_TRUNCATE_TO_32_BIT(host_vm_stat.pageouts);
stat32->faults = VM_STATISTICS_TRUNCATE_TO_32_BIT(host_vm_stat.faults);
stat32->cow_faults = VM_STATISTICS_TRUNCATE_TO_32_BIT(host_vm_stat.cow_faults);
stat32->lookups = VM_STATISTICS_TRUNCATE_TO_32_BIT(host_vm_stat.lookups);
stat32->hits = VM_STATISTICS_TRUNCATE_TO_32_BIT(host_vm_stat.hits);
/*
* Fill in extra info added in later revisions of the
* vm_statistics data structure. Fill in only what can fit
* in the data structure the caller gave us !
*/
original_count = *count;
*count = HOST_VM_INFO_REV0_COUNT; /* rev0 already filled in */
if (original_count >= HOST_VM_INFO_REV1_COUNT) {
/* rev1 added "purgeable" info */
stat32->purgeable_count = VM_STATISTICS_TRUNCATE_TO_32_BIT(vm_page_purgeable_count);
stat32->purges = VM_STATISTICS_TRUNCATE_TO_32_BIT(vm_page_purged_count);
*count = HOST_VM_INFO_REV1_COUNT;
}
if (original_count >= HOST_VM_INFO_REV2_COUNT) {
/* rev2 added "speculative" info */
stat32->speculative_count = VM_STATISTICS_TRUNCATE_TO_32_BIT(vm_page_speculative_count);
*count = HOST_VM_INFO_REV2_COUNT;
}
/* rev3 changed some of the fields to be 64-bit*/
return (KERN_SUCCESS);
}
case HOST_CPU_LOAD_INFO:
{
register processor_t processor;
host_cpu_load_info_t cpu_load_info;
if (*count < HOST_CPU_LOAD_INFO_COUNT)
return (KERN_FAILURE);
#define GET_TICKS_VALUE(processor, state, timer) \
MACRO_BEGIN \
cpu_load_info->cpu_ticks[(state)] += \
(uint32_t)(timer_grab(&PROCESSOR_DATA(processor, timer)) \
/ hz_tick_interval); \
MACRO_END
cpu_load_info = (host_cpu_load_info_t)info;
cpu_load_info->cpu_ticks[CPU_STATE_USER] = 0;
cpu_load_info->cpu_ticks[CPU_STATE_SYSTEM] = 0;
cpu_load_info->cpu_ticks[CPU_STATE_IDLE] = 0;
cpu_load_info->cpu_ticks[CPU_STATE_NICE] = 0;
simple_lock(&processor_list_lock);
for (processor = processor_list; processor != NULL; processor = processor->processor_list) {
timer_data_t idle_temp;
timer_t idle_state;
GET_TICKS_VALUE(processor, CPU_STATE_USER, user_state);
if (precise_user_kernel_time) {
GET_TICKS_VALUE(processor, CPU_STATE_SYSTEM, system_state);
} else {
/* system_state may represent either sys or user */
GET_TICKS_VALUE(processor, CPU_STATE_USER, system_state);
}
idle_state = &PROCESSOR_DATA(processor, idle_state);
idle_temp = *idle_state;
if (PROCESSOR_DATA(processor, current_state) != idle_state ||
timer_grab(&idle_temp) != timer_grab(idle_state))
GET_TICKS_VALUE(processor, CPU_STATE_IDLE, idle_state);
else {
timer_advance(&idle_temp, mach_absolute_time() - idle_temp.tstamp);
cpu_load_info->cpu_ticks[CPU_STATE_IDLE] +=
(uint32_t)(timer_grab(&idle_temp) / hz_tick_interval);
}
}
simple_unlock(&processor_list_lock);
*count = HOST_CPU_LOAD_INFO_COUNT;
return (KERN_SUCCESS);
}
case HOST_EXPIRED_TASK_INFO:
{
if (*count < TASK_POWER_INFO_COUNT) {
return (KERN_FAILURE);
}
task_power_info_t tinfo = (task_power_info_t)info;
tinfo->task_interrupt_wakeups = dead_task_statistics.task_interrupt_wakeups;
tinfo->task_platform_idle_wakeups = dead_task_statistics.task_platform_idle_wakeups;
tinfo->task_timer_wakeups_bin_1 = dead_task_statistics.task_timer_wakeups_bin_1;
tinfo->task_timer_wakeups_bin_2 = dead_task_statistics.task_timer_wakeups_bin_2;
tinfo->total_user = dead_task_statistics.total_user_time;
tinfo->total_system = dead_task_statistics.total_system_time;
return (KERN_SUCCESS);
}
default:
return (KERN_INVALID_ARGUMENT);
}
}
