103 lines
2.2 KiB
C
103 lines
2.2 KiB
C
/* See LICENSE file for copyright and license details. */
|
|
#include <errno.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
|
|
#include "../util.h"
|
|
|
|
#if defined(__linux__)
|
|
#include <inttypes.h>
|
|
#include <stdint.h>
|
|
|
|
const char *
|
|
cpu_freq(void)
|
|
{
|
|
uint64_t freq;
|
|
|
|
/* in kHz */
|
|
if (pscanf("/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq",
|
|
"%"SCNu64, &freq) != 1) {
|
|
return NULL;
|
|
}
|
|
|
|
return fmt_human_10(freq * 1000, "Hz");
|
|
}
|
|
|
|
const char *
|
|
cpu_perc(void)
|
|
{
|
|
static long double a[7];
|
|
long double b[7];
|
|
|
|
memcpy(b, a, sizeof(b));
|
|
/* cpu user nice system idle iowait irq softirq */
|
|
if (pscanf("/proc/stat", "%*s %Lf %Lf %Lf %Lf %Lf %Lf %Lf",
|
|
&a[0], &a[1], &a[2], &a[3], &a[4], &a[5], &a[6]) != 7) {
|
|
return NULL;
|
|
}
|
|
if (b[0] == 0) {
|
|
return NULL;
|
|
}
|
|
|
|
return bprintf("%d%%", (int)(100 *
|
|
((b[0] + b[1] + b[2] + b[5] + b[6]) -
|
|
(a[0] + a[1] + a[2] + a[5] + a[6])) /
|
|
((b[0] + b[1] + b[2] + b[3] + b[4] + b[5] + b[6]) -
|
|
(a[0] + a[1] + a[2] + a[3] + a[4] + a[5] + a[6]))));
|
|
}
|
|
#elif defined(__OpenBSD__)
|
|
#include <sys/param.h>
|
|
#include <sys/sched.h>
|
|
#include <sys/sysctl.h>
|
|
|
|
const char *
|
|
cpu_freq(void)
|
|
{
|
|
int freq, mib[2];
|
|
size_t size;
|
|
|
|
mib[0] = CTL_HW;
|
|
mib[1] = HW_CPUSPEED;
|
|
|
|
size = sizeof(freq);
|
|
|
|
/* in MHz */
|
|
if (sysctl(mib, 2, &freq, &size, NULL, 0) < 0) {
|
|
warn("sysctl 'HW_CPUSPEED':");
|
|
return NULL;
|
|
}
|
|
|
|
return fmt_human_10((size_t)freq * 1000 * 1000, "Hz");
|
|
}
|
|
|
|
const char *
|
|
cpu_perc(void)
|
|
{
|
|
int mib[2];
|
|
static long int a[CPUSTATES];
|
|
long int b[CPUSTATES];
|
|
size_t size;
|
|
|
|
mib[0] = CTL_KERN;
|
|
mib[1] = KERN_CPTIME;
|
|
|
|
size = sizeof(a);
|
|
|
|
memcpy(b, a, sizeof(b));
|
|
if (sysctl(mib, 2, &a, &size, NULL, 0) < 0) {
|
|
warn("sysctl 'KERN_CPTIME':");
|
|
return NULL;
|
|
}
|
|
if (b[0] == 0) {
|
|
return NULL;
|
|
}
|
|
|
|
return bprintf("%d%%", 100 *
|
|
((a[CP_USER] + a[CP_NICE] + a[CP_SYS] + a[CP_INTR]) -
|
|
(b[CP_USER] + b[CP_NICE] + b[CP_SYS] + b[CP_INTR])) /
|
|
((a[CP_USER] + a[CP_NICE] + a[CP_SYS] + a[CP_INTR] +
|
|
a[CP_IDLE]) -
|
|
(b[CP_USER] + b[CP_NICE] + b[CP_SYS] + b[CP_INTR] +
|
|
b[CP_IDLE])));
|
|
}
|
|
#endif
|