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TIMER: Provide API to determine host OS Process CPU times

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This commit is contained in:
Mark Pizzolato
2024-01-02 18:24:00 -10:00
parent e8cf41bd0e
commit c8cb7a875e
2 changed files with 27 additions and 0 deletions
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26
sim_timer.c
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@@ -553,6 +553,16 @@ return 0;
} }
#endif #endif
t_stat sim_os_process_cpu_times (double *system, double *user)
{
t_uint64 ftCreation, ftExit, ftKernel, ftUser;
GetProcessTimes (GetCurrentProcess(), (FILETIME *)&ftCreation, (FILETIME *)&ftExit, (FILETIME *)&ftKernel, (FILETIME *)&ftUser);
*system = (double)(ftKernel / 10000000) + (((double)(ftKernel % 10000000)) / 10000000.0);
*user = (double)(ftUser / 10000000) + (((double)(ftUser % 10000000)) / 10000000.0);
return SCPE_OK;
}
#else #else
/* UNIX routines */ /* UNIX routines */
@@ -586,6 +596,22 @@ uint32 sim_os_ms_sleep_init (void)
return _compute_minimum_sleep (); return _compute_minimum_sleep ();
} }
#include <sys/time.h>
#include <sys/resource.h>
t_stat sim_os_process_cpu_times (double *system, double *user)
{
struct rusage usage;
*system = 0.0;
*user = 0.0;
if (0 == getrusage (RUSAGE_SELF, &usage)) {
*system = ((double)usage.ru_stime.tv_sec) + ((double)usage.ru_stime.tv_usec / 1000000.0);
*user = ((double)usage.ru_utime.tv_sec) + ((double)usage.ru_utime.tv_usec / 1000000.0);
}
return SCPE_OK;
}
#if !defined(_POSIX_SOURCE) #if !defined(_POSIX_SOURCE)
#ifdef NEED_CLOCK_GETTIME #ifdef NEED_CLOCK_GETTIME
typedef int clockid_t; typedef int clockid_t;

1
sim_timer.h
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@@ -159,6 +159,7 @@ uint32 sim_get_rom_delay_factor (void);
void sim_set_rom_delay_factor (uint32 delay); void sim_set_rom_delay_factor (uint32 delay);
int32 sim_rom_read_with_delay (int32 val); int32 sim_rom_read_with_delay (int32 val);
double sim_host_speed_factor (void); double sim_host_speed_factor (void);
t_stat sim_os_process_cpu_times (double *system, double *user);
extern t_bool sim_idle_enab; /* idle enabled flag */ extern t_bool sim_idle_enab; /* idle enabled flag */
extern volatile t_bool sim_idle_wait; /* idle waiting flag */ extern volatile t_bool sim_idle_wait; /* idle waiting flag */