mirror of
https://github.com/ClusterCockpit/cc-metric-collector.git
synced 2024-12-27 07:39:05 +01:00
70 lines
1.7 KiB
Go
70 lines
1.7 KiB
Go
package collectors
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import (
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"errors"
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"io/ioutil"
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"log"
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"strconv"
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"strings"
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"time"
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)
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const MEMSTATFILE = `/proc/meminfo`
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type MemstatCollector struct {
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MetricCollector
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}
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func (m *MemstatCollector) Init() error {
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m.name = "MemstatCollector"
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m.setup()
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return nil
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}
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func (m *MemstatCollector) Read(interval time.Duration) {
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buffer, err := ioutil.ReadFile(string(MEMSTATFILE))
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if err != nil {
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log.Print(err)
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return
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}
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ll := strings.Split(string(buffer), "\n")
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memstats := make(map[string]int64)
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for _, line := range ll {
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ls := strings.Split(line, `:`)
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if len(ls) > 1 {
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lv := strings.Fields(ls[1])
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memstats[ls[0]], err = strconv.ParseInt(lv[0], 0, 64)
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}
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}
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if _, exists := memstats[`MemTotal`]; !exists {
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err = errors.New("Parse error")
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log.Print(err)
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return
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}
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m.node["mem_total"] = float64(memstats[`MemTotal`]) * 1.0e-3
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m.node["swap_total"] = float64(memstats[`SwapTotal`]) * 1.0e-3
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m.node["mem_sreclaimable"] = float64(memstats[`SReclaimable`]) * 1.0e-3
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m.node["mem_slab"] = float64(memstats[`Slab`]) * 1.0e-3
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m.node["mem_free"] = float64(memstats[`MemFree`]) * 1.0e-3
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m.node["mem_buffers"] = float64(memstats[`Buffers`]) * 1.0e-3
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m.node["mem_cached"] = float64(memstats[`Cached`]) * 1.0e-3
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m.node["mem_available"] = float64(memstats[`MemAvailable`]) * 1.0e-3
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m.node["swap_free"] = float64(memstats[`SwapFree`]) * 1.0e-3
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memUsed := memstats[`MemTotal`] - (memstats[`MemFree`] + memstats[`Buffers`] + memstats[`Cached`])
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m.node["mem_used"] = float64(memUsed) * 1.0e-3
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// In linux-2.5.52 when Memshared was removed
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if _, found := memstats[`MemShared`]; found {
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m.node["mem_shared"] = float64(memstats[`MemShared`]) * 1.0e-3
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}
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}
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func (m *MemstatCollector) Close() {
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return
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}
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