prometheusmetricshost-metricsmachine-metricsnode-metricsprocfsprometheus-exportersystem-informationsystem-metrics
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40 lines
1.0 KiB
40 lines
1.0 KiB
// Copyright 2016 The Prometheus Authors |
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// Licensed under the Apache License, Version 2.0 (the "License"); |
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// you may not use this file except in compliance with the License. |
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// You may obtain a copy of the License at |
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// |
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// http://www.apache.org/licenses/LICENSE-2.0 |
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// |
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// Unless required by applicable law or agreed to in writing, software |
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// distributed under the License is distributed on an "AS IS" BASIS, |
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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// See the License for the specific language governing permissions and |
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// limitations under the License. |
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// +build !noloadavg |
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package collector |
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import ( |
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"unsafe" |
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"golang.org/x/sys/unix" |
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) |
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func getLoad() ([]float64, error) { |
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type loadavg struct { |
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load [3]uint32 |
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scale int |
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} |
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b, err := unix.SysctlRaw("vm.loadavg") |
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if err != nil { |
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return nil, err |
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} |
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load := *(*loadavg)(unsafe.Pointer((&b[0]))) |
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scale := float64(load.scale) |
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return []float64{ |
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float64(load.load[0]) / scale, |
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float64(load.load[1]) / scale, |
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float64(load.load[2]) / scale, |
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}, nil |
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}
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