Attachment 2213 Details for Bug 12730 – mbmon_test.cpp

mbmon_test.cpp

mbmon_test.cpp (text/plain), 1.62 KB, created by Roman Savochenko on 2007-09-29 00:32:45 MSD

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Creator: Roman Savochenko

Created: 2007-09-29 00:32:45 MSD

Size: 1.62 KB

patch

obsolete

>#include <stdlib.h>
>#include <stdio.h>
>#include <unistd.h>
>#include <signal.h>
>#include <time.h>
>#include <pthread.h>
>
>void *Task( void * )
>{
>    float prec, prec_max=0.;
>    long long work_tm, cur_tm;
>    int per = 100000000;	//s
>    struct timespec get_tm;
>    
>    //Calc next work time and sleep
>    clock_gettime(CLOCK_REALTIME,&get_tm);
>    work_tm = (long long)get_tm.tv_sec*1000000000+get_tm.tv_nsec;    
>    
>    for(int i=0; true/*i < 1000*/; i++)
>    {
>	char buf[100], name[31];
>        float val;
>	FILE *fp = popen("mbmon -r -c 1","r");
>        if( fp == NULL ) return NULL;
>		       
>        while(fgets(buf,sizeof(buf),fp))
>        {
>	    if( sscanf(buf, "%31s : %f", name, &val) != 2 ) continue;
>	    printf("%s : %f\n",name,val);
>	}
>	pclose(fp);    
>    
>	work_tm=work_tm+per;
>	get_tm.tv_sec = work_tm/1000000000; get_tm.tv_nsec = work_tm%1000000000;
>	clock_nanosleep(CLOCK_REALTIME,TIMER_ABSTIME,&get_tm,NULL);
>	clock_gettime(CLOCK_REALTIME,&get_tm);
>	cur_tm = (long long)get_tm.tv_sec*1000000000+get_tm.tv_nsec;	
>	prec = (float)(cur_tm-work_tm)/1000000.;
>	if(prec>prec_max) prec_max=prec;
>	printf("Precission %f ms; max %f\n",prec,prec_max);
>    }    
>}
>
>int main( int argc, char **argv )
>{    
>    pthread_t pthrid;
>    pthread_attr_t pthr_attr;
>    pthread_attr_init(&pthr_attr);
>    struct sched_param prior;
>    pthread_attr_setschedpolicy(&pthr_attr,SCHED_RR);
>    //pthread_attr_setschedpolicy(&pthr_attr,SCHED_OTHER);
>    prior.__sched_priority=10;
>    pthread_attr_setschedparam(&pthr_attr,&prior);
>    pthread_create(&pthrid,&pthr_attr,Task,NULL);
>    pthread_attr_destroy(&pthr_attr);
>    
>    while(true) sleep(100);
>
>    return 0;
>}

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Attachments on bug 12730: 2213