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agent: use ms as unit of cputime instead of ticks
For the library `procfs`, the unit of values in `CpuTime` is ticks, and we do not know how many ticks per second from metrics because the `tps` in `CpuTime` is private. But there are some implements in `CpuTime` for getting these values, e.g., `user_ms()` for `user`, and `nice_ms()` for `nice`. With these values, accurate time can be obtained. Fixes: #3979 Acked-by: zhaojizhuang <571130360@qq.com> Signed-off-by: Yu Li <liyu.yukiteru@bytedance.com>
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@ -344,25 +344,25 @@ fn set_gauge_vec_meminfo(gv: &prometheus::GaugeVec, meminfo: &procfs::Meminfo) {
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#[instrument]
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fn set_gauge_vec_cpu_time(gv: &prometheus::GaugeVec, cpu: &str, cpu_time: &procfs::CpuTime) {
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gv.with_label_values(&[cpu, "user"])
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.set(cpu_time.user as f64);
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.set(cpu_time.user_ms() as f64);
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gv.with_label_values(&[cpu, "nice"])
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.set(cpu_time.nice as f64);
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.set(cpu_time.nice_ms() as f64);
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gv.with_label_values(&[cpu, "system"])
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.set(cpu_time.system as f64);
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.set(cpu_time.system_ms() as f64);
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gv.with_label_values(&[cpu, "idle"])
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.set(cpu_time.idle as f64);
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.set(cpu_time.idle_ms() as f64);
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gv.with_label_values(&[cpu, "iowait"])
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.set(cpu_time.iowait.unwrap_or(0) as f64);
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.set(cpu_time.iowait_ms().unwrap_or(0) as f64);
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gv.with_label_values(&[cpu, "irq"])
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.set(cpu_time.irq.unwrap_or(0) as f64);
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.set(cpu_time.irq_ms().unwrap_or(0) as f64);
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gv.with_label_values(&[cpu, "softirq"])
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.set(cpu_time.softirq.unwrap_or(0) as f64);
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.set(cpu_time.softirq_ms().unwrap_or(0) as f64);
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gv.with_label_values(&[cpu, "steal"])
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.set(cpu_time.steal.unwrap_or(0) as f64);
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.set(cpu_time.steal_ms().unwrap_or(0) as f64);
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gv.with_label_values(&[cpu, "guest"])
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.set(cpu_time.guest.unwrap_or(0) as f64);
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.set(cpu_time.guest_ms().unwrap_or(0) as f64);
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gv.with_label_values(&[cpu, "guest_nice"])
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.set(cpu_time.guest_nice.unwrap_or(0) as f64);
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.set(cpu_time.guest_nice_ms().unwrap_or(0) as f64);
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}
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#[instrument]
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