怎么监测服务器的cup使用情况，有着方面的函数调用么？谢谢大家

[sun_star221]

怎么监测服务器的cup使用情况？还有内存的使用情况

[anonimousboy]

cat /proc/cpuinfo
cat /proc/meminfo

可以看到cpu和内存的现在的状况

[yuanlei1978113]

struct CPU_USAGE
{
unsigned long cpu_user;
unsigned long cpu_sys;
unsigned long cpu_nice;
unsigned long cpu_idle;
};

int Get_CpuInfor_DynamicData_From_Proc_Stat( struct CPU_USAGE *usage )
{
FILE *fp= NULL;
char tmp[10];
//char buffer[128+1];

fp = fopen(CPU_FILE_PROC_STAT, "r");
if ( fp == NULL )
{
perror("fopen");
return (-1);
};
//printf("%s %d\n", __FILE__, __LINE__);
fscanf( fp, "%s %lu %lu %lu %lu", tmp, &(usage->cpu_user), &(usage->cpu_sys), &(usage->cpu_nice), &(usage->cpu_idle) );
//printf("%s %d\n", __FILE__, __LINE__);
fclose( fp );
//printf("%s %d\n", __FILE__, __LINE__);

return ( 1 );

}

double Get_Cpu_Use_Rate( const struct CPU_USAGE *cur, const struct CPU_USAGE *old )
{
double user, sys, nice, idle, total;
double use_rate;

user = (double)(cur->cpu_user - old->cpu_user);
sys = (double)(cur->cpu_sys - old->cpu_sys);
nice = (double)(cur->cpu_nice - old->cpu_nice);
idle = (double)(cur->cpu_idle - old->cpu_idle);

total = user + sys + nice + idle;
use_rate = ( 1 - idle / total ) * 100;

return use_rate;
}

这是我自己写的，你试着用用，欢迎多提宝贵意见。