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let f = fs.open("/proc/stat");
if (!f)
return false;
const desc = [
null,
"user",
"nice",
"system",
"idle",
"iowait",
"irq",
"softirq",
"steal",
"guest",
"guest_nice",
];
const m_cpu = counter("node_cpu_seconds_total");
let line;
while (line = nextline(f)) {
const x = wsplit(line);
if (length(x) < 2)
continue;
if (match(x[0], /^cpu\d+/)) {
const count = min(length(x), length(desc));
for (let i = 1; i < count; i++)
m_cpu({ cpu: x[0], mode: desc[i] }, x[i] / 100.0);
} else if (x[0] == "intr")
counter("node_intr_total")(null, x[1]);
else if (x[0] == "ctxt")
counter("node_context_switches_total")(null, x[1]);
else if (x[0] == "btime")
gauge("node_boot_time_seconds")(null, x[1]);
else if (x[0] == "processes")
counter("node_forks_total")(null, x[1]);
else if (x[0] == "procs_running")
gauge("node_procs_running_total")(null, x[1]);
else if (x[0] == "procs_blocked")
gauge("node_procs_blocked_total")(null, x[1]);
}
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