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64 lines
1.3 KiB
C
64 lines
1.3 KiB
C
/* See LICENSE file for copyright and license details. */
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#include <stdio.h>
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#include <string.h>
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#include "../util.h"
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const char *
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cpu_freq(void)
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{
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int freq;
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return (pscanf("/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq",
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"%i", &freq) == 1) ?
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bprintf("%d", (freq + 500) / 1000) : NULL;
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}
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const char *
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cpu_perc(void)
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{
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int perc;
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static long double a[7];
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static int valid;
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long double b[7];
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memcpy(b, a, sizeof(b));
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if (pscanf("/proc/stat", "%*s %Lf %Lf %Lf %Lf %Lf %Lf %Lf", &a[0], &a[1], &a[2],
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&a[3], &a[4], &a[5], &a[6]) != 7) {
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return NULL;
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}
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if (!valid) {
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valid = 1;
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return NULL;
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}
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perc = 100 * ((b[0]+b[1]+b[2]+b[5]+b[6]) - (a[0]+a[1]+a[2]+a[5]+a[6])) /
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((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]));
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return bprintf("%d", perc);
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}
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const char *
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cpu_iowait(void)
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{
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int perc;
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static int valid;
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static long double a[7];
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long double b[7];
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memcpy(b, a, sizeof(b));
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if (pscanf("/proc/stat", "%*s %Lf %Lf %Lf %Lf %Lf %Lf %Lf", &a[0], &a[1], &a[2],
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&a[3], &a[4], &a[5], &a[6]) != 7) {
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return NULL;
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}
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if (!valid) {
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valid = 1;
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return NULL;
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}
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perc = 100 * ((b[4]) - (a[4])) /
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((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]));
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return bprintf("%d", perc);
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}
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