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cpu_perc: Documentation and readbility improvements

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This commit is contained in:
Aaron Marcher 2018-05-06 21:10:02 +02:00
parent 2b82bf0248
commit 235fa3c306
1 changed files with 9 additions and 9 deletions
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18
components/cpu.c
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@ -25,6 +25,7 @@
long double b[7]; long double b[7];
memcpy(b, a, sizeof(b)); 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", 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) { &a[0], &a[1], &a[2], &a[3], &a[4], &a[5], &a[6]) != 7) {
return NULL; return NULL;
@ -34,11 +35,10 @@
return NULL; return NULL;
} }
perc = 100 * perc = 100 * ((b[0] + b[1] + b[2] + b[5] + b[6]) -
((b[0]+b[1]+b[2]+b[5]+b[6]) - (a[0] + a[1] + a[2] + a[5] + a[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]) -
((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]));
(a[0]+a[1]+a[2]+a[3]+a[4]+a[5]+a[6]));
return bprintf("%d", perc); return bprintf("%d", perc);
} }
@ -117,10 +117,10 @@
} }
perc = 100 * perc = 100 *
((a[CP_USER]+a[CP_NICE]+a[CP_SYS]+a[CP_INTR]) - ((a[CP_USER] + a[CP_NICE] + a[CP_SYS] + a[CP_INTR]) -
(b[CP_USER]+b[CP_NICE]+b[CP_SYS]+b[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]) - ((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])); (b[CP_USER] + b[CP_NICE] + b[CP_SYS] + b[CP_INTR] + b[CP_IDLE]));
return bprintf("%d", perc); return bprintf("%d", perc);
} }