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FreeBSD: scale CPU% usage on swap time #606

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FreeBSD: scale CPU% usage on swap time #606

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9 changes: 8 additions & 1 deletion freebsd/FreeBSDProcessTable.c
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Original file line number Diff line number Diff line change
Expand Up @@ -165,6 +165,13 @@ void ProcessTable_goThroughEntries(ProcessTable* super) {
int count = 0;
const struct kinfo_proc* kprocs = kvm_getprocs(fhost->kd, KERN_PROC_PROC, 0, &count);

int ccpu;
size_t size = sizeof(ccpu);
if (sysctlbyname("kern.ccpu", &ccpu, &size, NULL, 0) == -1) {
ccpu = 0;
}
const double decayfactor = log(ccpu / fhost->kernelFScale);

for (int i = 0; i < count; i++) {
const struct kinfo_proc* kproc = &kprocs[i];
bool preExisting = false;
Expand Down Expand Up @@ -234,7 +241,7 @@ void ProcessTable_goThroughEntries(ProcessTable* super) {
proc->nlwp = kproc->ki_numthreads;
proc->time = (kproc->ki_runtime + 5000) / 10000;

proc->percent_cpu = 100.0 * ((double)kproc->ki_pctcpu / (double)fhost->kernelFScale);
proc->percent_cpu = 100.0 * ((double)kproc->ki_pctcpu / (double)fhost->kernelFScale) / (1.0 - exp(kproc->ki_swtime * decayfactor));
proc->percent_mem = 100.0 * proc->m_resident / (double)(host->totalMem);
Process_updateCPUFieldWidths(proc->percent_cpu);

Expand Down