Solaris下如何获取系统负载状态？

本示例代码展示了如何在Solaris操作系统下获取系统负载状态，实现方式为使用kstat结构体并读取相应的指标。

#include <kstat.h>

int main(void) {
    kstat_ctl_t *kc;
    kstat_t *ks;
    double load_avg[3];
    kc = kstat_open();
    ks = kstat_lookup(kc, "unix", 0, "system_misc");
    kstat_read(kc, ks, NULL);
    load_avg[0] = ks->ks_data->cpu_stat.cpu_sysinfo.loadavg[0] / FSCALE;
    load_avg[1] = ks->ks_data->cpu_stat.cpu_sysinfo.loadavg[1] / FSCALE;
    load_avg[2] = ks->ks_data->cpu_stat.cpu_sysinfo.loadavg[2] / FSCALE;
    printf("Load averages: %.2f %.2f %.2f\n", load_avg[0], load_avg[1], load_avg[2]);
    kstat_close(kc);
    return 0;
}

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