cpu_perc: Documentation and readbility improvements
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@ -25,6 +25,7 @@
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long double b[7];
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long double b[7];
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memcpy(b, a, sizeof(b));
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memcpy(b, a, sizeof(b));
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/* cpu user nice system idle iowait irq softirq */
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if (pscanf("/proc/stat", "%*s %Lf %Lf %Lf %Lf %Lf %Lf %Lf",
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if (pscanf("/proc/stat", "%*s %Lf %Lf %Lf %Lf %Lf %Lf %Lf",
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&a[0], &a[1], &a[2], &a[3], &a[4], &a[5], &a[6]) != 7) {
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&a[0], &a[1], &a[2], &a[3], &a[4], &a[5], &a[6]) != 7) {
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return NULL;
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return NULL;
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@ -34,8 +35,7 @@
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return NULL;
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return NULL;
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}
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}
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perc = 100 *
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perc = 100 * ((b[0] + b[1] + b[2] + b[5] + b[6]) -
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((b[0]+b[1]+b[2]+b[5]+b[6]) -
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(a[0] + a[1] + a[2] + a[5] + a[6])) /
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(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]) -
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((b[0] + b[1] + b[2] + b[3] + b[4] + b[5] + b[6]) -
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(a[0] + a[1] + a[2] + a[3] + a[4] + a[5] + a[6]));
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(a[0] + a[1] + a[2] + a[3] + a[4] + a[5] + a[6]));
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