102fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Projectchar netcpu_perfstat_id[]="\ 202fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project@(#)netcpu_perfstat.c Version 2.4.0"; 302fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project 402fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project#if HAVE_CONFIG_H 502fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project# include <config.h> 602fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project#endif 702fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project 802fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project#include <stdio.h> 902fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project 1002fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project#if HAVE_INTTYPES_H 1102fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project# include <inttypes.h> 1202fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project#else 1302fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project# if HAVE_STDINT_H 1402fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project# include <stdint.h> 1502fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project# endif 1602fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project#endif 1702fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project 1802fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project#if TIME_WITH_SYS_TIME 1902fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project# include <sys/time.h> 2002fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project# include <time.h> 2102fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project#else 2202fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project# if HAVE_SYS_TIME_H 2302fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project# include <sys/time.h> 2402fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project# else 2502fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project# include <time.h> 2602fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project# endif 2702fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project#endif 2802fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project 2902fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project#if HAVE_LIMITS_H 3002fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project# include <limits.h> 3102fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project# ifndef LONG_LONG_MAX 3202fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project# define LONG_LONG_MAX LLONG_MAX 3302fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project# endif /* LONG_LONG_MAX */ 3402fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project#endif 3502fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project 3602fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project#include <errno.h> 3702fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project 3802fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project#include "netsh.h" 3902fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project#include "netlib.h" 4002fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project 4102fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project/* the lib_start_count and lib_end_count arrays hold the starting 4202fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project and ending values of whatever is counting when the system is 4302fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project idle. The rate at which this increments during a test is compared 4402fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project with a previous calibration to arrive at a CPU utilization 4502fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project percentage. raj 2005-01-26 */ 4602fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Projectstatic uint64_t lib_start_count[MAXCPUS]; 4702fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Projectstatic uint64_t lib_end_count[MAXCPUS]; 4802fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project 4902fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project 5002fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Projectvoid 5102fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Projectcpu_util_init(void) 5202fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project{ 5302fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project return; 5402fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project} 5502fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project 5602fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Projectvoid 5702fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Projectcpu_util_terminate(void) 5802fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project{ 5902fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project return; 6002fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project} 6102fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project 6202fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Projectint 6302fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Projectget_cpu_method(void) 6402fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project{ 6502fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project return PERFSTAT; 6602fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project} 6702fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project 6802fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Projectvoid 6902fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Projectget_cpu_idle(uint64_t *res) 7002fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project{ 7102fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project perfstat_cpu_t *perfstat_buffer; 7202fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project perfstat_cpu_t *per_cpu_pointer; 7302fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project perfstat_id_t name; 7402fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project int i,ret; 7502fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project 7602fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project /* a name of "" will cause us to start from the beginning */ 7702fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project strcpy(name.name,""); 7802fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project perfstat_buffer = (perfstat_cpu_t *)malloc(lib_num_loc_cpus * 7902fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project sizeof(perfstat_cpu_t)); 8002fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project if (perfstat_buffer == NULL) { 8102fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project fprintf(where, 8202fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project "cpu_start: malloc failed errno %d\n", 8302fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project errno); 8402fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project fflush(where); 8502fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project exit(-1); 8602fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project } 8702fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project 8802fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project /* happiness and joy, keep going */ 8902fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project ret = perfstat_cpu(&name, 9002fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project perfstat_buffer, 9102fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project sizeof(perfstat_cpu_t), 9202fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project lib_num_loc_cpus); 9302fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project 9402fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project if ((ret == -1) || 9502fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project (ret != lib_num_loc_cpus)) { 9602fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project fprintf(where, 9702fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project "cpu_start: perfstat_cpu failed/count off; errno %d cpus %d count %d\n", 9802fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project errno, 9902fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project lib_num_loc_cpus, 10002fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project ret); 10102fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project fflush(where); 10202fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project exit(-1); 10302fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project } 10402fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project 10502fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project per_cpu_pointer = perfstat_buffer; 10602fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project for (i = 0; i < lib_num_loc_cpus; i++){ 10702fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project res[i] = per_cpu_pointer->idle; 10802fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project per_cpu_pointer++; 10902fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project } 11002fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project free(perfstat_buffer); 11102fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project 11202fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project return; 11302fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project} 11402fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project 11502fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Projectfloat 11602fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Projectcalibrate_idle_rate(int iterations, int interval) 11702fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project{ 11802fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project unsigned long long 11902fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project firstcnt[MAXCPUS], 12002fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project secondcnt[MAXCPUS]; 12102fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project 12202fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project float 12302fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project elapsed, 12402fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project temp_rate, 12502fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project rate[MAXTIMES], 12602fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project local_maxrate; 12702fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project 12802fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project long 12902fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project sec, 13002fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project usec; 13102fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project 13202fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project int 13302fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project i, 13402fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project j; 13502fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project 13602fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project struct timeval time1, time2 ; 13702fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project struct timezone tz; 13802fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project 13902fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project perfstat_cpu_t *perfstat_buffer; 14002fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project perfstat_cpu_t *per_cpu_pointer; 14102fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project perfstat_id_t name; 14202fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project int ret; 14302fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project 14402fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project if (debug) { 14502fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project fprintf(where,"enter calibrate_perfstat\n"); 14602fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project fflush(where); 14702fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project } 14802fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project 14902fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project if (iterations > MAXTIMES) { 15002fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project iterations = MAXTIMES; 15102fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project } 15202fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project 15302fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project local_maxrate = (float)-1.0; 15402fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project 15502fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project perfstat_buffer = (perfstat_cpu_t *)malloc(lib_num_loc_cpus * 15602fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project sizeof(perfstat_cpu_t)); 15702fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project if (perfstat_buffer == NULL) { 15802fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project fprintf(where, 15902fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project "calibrate_perfstat: malloc failed errno %d\n", 16002fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project errno); 16102fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project fflush(where); 16202fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project exit(-1); 16302fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project } 16402fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project 16502fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project for(i = 0; i < iterations; i++) { 16602fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project rate[i] = (float)0.0; 16702fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project /* a name of "" will cause us to start from the beginning */ 16802fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project strcpy(name.name,""); 16902fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project 17002fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project /* happiness and joy, keep going */ 17102fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project ret = perfstat_cpu(&name, 17202fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project perfstat_buffer, 17302fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project sizeof(perfstat_cpu_t), 17402fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project lib_num_loc_cpus); 17502fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project 17602fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project if ((ret == -1) || 17702fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project (ret != lib_num_loc_cpus)) { 17802fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project fprintf(where, 17902fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project "calibrate_perfstat: perfstat_cpu failed/count off; errno %d cpus %d count %d\n", 18002fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project errno, 18102fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project lib_num_loc_cpus, 18202fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project ret); 18302fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project fflush(where); 18402fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project exit(-1); 18502fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project } 18602fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project 18702fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project per_cpu_pointer = perfstat_buffer; 18802fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project for (j = 0; j < lib_num_loc_cpus; j++) { 18902fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project firstcnt[j] = per_cpu_pointer->idle; 19002fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project per_cpu_pointer++; 19102fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project } 19202fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project gettimeofday (&time1, &tz); 19302fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project sleep(interval); 19402fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project gettimeofday (&time2, &tz); 19502fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project 19602fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project if (time2.tv_usec < time1.tv_usec) 19702fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project { 19802fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project time2.tv_usec += 1000000; 19902fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project time2.tv_sec -=1; 20002fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project } 20102fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project sec = time2.tv_sec - time1.tv_sec; 20202fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project usec = time2.tv_usec - time1.tv_usec; 20302fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project elapsed = (float)sec + ((float)usec/(float)1000000.0); 20402fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project 20502fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project /* happiness and joy, keep going */ 20602fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project ret = perfstat_cpu(&name, 20702fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project perfstat_buffer, 20802fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project sizeof(perfstat_cpu_t), 20902fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project lib_num_loc_cpus); 21002fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project 21102fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project if ((ret == -1) || 21202fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project (ret != lib_num_loc_cpus)) { 21302fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project fprintf(where, 21402fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project "calibrate_perfstat: perfstat_cpu failed/count off; errno %d cpus %d count %d\n", 21502fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project errno, 21602fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project lib_num_loc_cpus, 21702fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project ret); 21802fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project fflush(where); 21902fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project exit(-1); 22002fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project } 22102fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project 22202fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project per_cpu_pointer = perfstat_buffer; 22302fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project 22402fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project if(debug) { 22502fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project fprintf(where, "Calibration for perfstat counter run: %d\n",i); 22602fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project fprintf(where,"\tsec = %ld usec = %ld\n",sec,usec); 22702fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project fprintf(where,"\telapsed time = %g\n",elapsed); 22802fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project } 22902fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project 23002fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project for (j = 0; j < lib_num_loc_cpus; j++) { 23102fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project secondcnt[j] = per_cpu_pointer->idle; 23202fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project per_cpu_pointer++; 23302fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project if(debug) { 23402fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project /* I know that there are situations where compilers know about */ 23502fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project /* long long, but the library functions do not... raj 4/95 */ 23602fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project fprintf(where, 23702fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project "\tfirstcnt[%d] = 0x%8.8lx%8.8lx secondcnt[%d] = 0x%8.8lx%8.8lx\n", 23802fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project j, 23902fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project firstcnt[j], 24002fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project firstcnt[j], 24102fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project j, 24202fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project secondcnt[j], 24302fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project secondcnt[j]); 24402fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project } 24502fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project /* we assume that it would wrap no more than once. we also */ 24602fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project /* assume that the result of subtracting will "fit" raj 4/95 */ 24702fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project temp_rate = (secondcnt[j] >= firstcnt[j]) ? 24802fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project (float)(secondcnt[j] - firstcnt[j])/elapsed : 24902fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project (float)(secondcnt[j]-firstcnt[j]+MAXLONG)/elapsed; 25002fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project if (temp_rate > rate[i]) rate[i] = temp_rate; 25102fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project if(debug) { 25202fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project fprintf(where,"\trate[%d] = %g\n",i,rate[i]); 25302fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project fflush(where); 25402fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project } 25502fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project if (local_maxrate < rate[i]) local_maxrate = rate[i]; 25602fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project } 25702fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project } 25802fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project if(debug) { 25902fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project fprintf(where,"\tlocal maxrate = %g per sec. \n",local_maxrate); 26002fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project fflush(where); 26102fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project } 26202fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project free(perfstat_buffer); 26302fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project return local_maxrate; 26402fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project} 26502fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project 26602fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Projectfloat 26702fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Projectcalc_cpu_util_internal(float elapsed_time) 26802fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project{ 26902fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project int i; 27002fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project 27102fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project float actual_rate; 27202fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project float correction_factor; 27302fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project 27402fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project lib_local_cpu_util = (float)0.0; 27502fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project /* It is possible that the library measured a time other than */ 27602fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project /* the one that the user want for the cpu utilization */ 27702fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project /* calculations - for example, tests that were ended by */ 27802fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project /* watchdog timers such as the udp stream test. We let these */ 27902fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project /* tests tell up what the elapsed time should be. */ 28002fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project 28102fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project if (elapsed_time != 0.0) { 28202fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project correction_factor = (float) 1.0 + 28302fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project ((lib_elapsed - elapsed_time) / elapsed_time); 28402fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project } 28502fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project else { 28602fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project correction_factor = (float) 1.0; 28702fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project } 28802fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project 28902fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project /* this looks just like the looper case. at least I think it */ 29002fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project /* should :) raj 4/95 */ 29102fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project for (i = 0; i < lib_num_loc_cpus; i++) { 29202fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project 29302fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project /* we assume that the two are not more than a long apart. I */ 29402fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project /* know that this is bad, but trying to go from long longs to */ 29502fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project /* a float (perhaps a double) is boggling my mind right now. */ 29602fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project /* raj 4/95 */ 29702fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project 29802fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project long long 29902fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project diff; 30002fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project 30102fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project if (lib_end_count[i] >= lib_start_count[i]) { 30202fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project diff = lib_end_count[i] - lib_start_count[i]; 30302fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project } 30402fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project else { 30502fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project diff = lib_end_count[i] - lib_start_count[i] + LONG_LONG_MAX; 30602fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project } 30702fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project actual_rate = (float) diff / lib_elapsed; 30802fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project lib_local_per_cpu_util[i] = (lib_local_maxrate - actual_rate) / 30902fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project lib_local_maxrate * 100; 31002fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project lib_local_cpu_util += lib_local_per_cpu_util[i]; 31102fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project if (debug) { 31202fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project fprintf(where, 31302fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project "calc_cpu_util: actual_rate on cpu %d is %g max_rate %g cpu %6.2f\n", 31402fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project i, 31502fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project actual_rate, 31602fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project lib_local_maxrate, 31702fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project lib_local_per_cpu_util[i]); 31802fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project } 31902fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project } 32002fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project 32102fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project /* we want the average across all n processors */ 32202fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project lib_local_cpu_util /= (float)lib_num_loc_cpus; 32302fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project 32402fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project if (debug) { 32502fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project fprintf(where, 32602fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project "calc_cpu_util: average across CPUs is %g\n",lib_local_cpu_util); 32702fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project } 32802fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project 32902fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project lib_local_cpu_util *= correction_factor; 33002fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project 33102fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project if (debug) { 33202fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project fprintf(where, 33302fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project "calc_cpu_util: returning %g\n",lib_local_cpu_util); 33402fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project } 33502fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project 33602fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project return lib_local_cpu_util; 33702fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project 33802fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project} 33902fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Projectvoid 34002fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Projectcpu_start_internal(void) 34102fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project{ 34202fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project get_cpu_idle(lib_start_count); 34302fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project return; 34402fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project} 34502fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project 34602fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Projectvoid 34702fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Projectcpu_stop_internal(void) 34802fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project{ 34902fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project get_cpu_idle(lib_end_count); 35002fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project} 35102fb0aca1189a2c1fd20806c588e9ee80d9755f8The Android Open Source Project 352