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Get the number of logcal CPUs dynamically #6214

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Aug 6, 2019
Merged

Get the number of logcal CPUs dynamically #6214

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2 changes: 2 additions & 0 deletions plugins/inputs/system/README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -3,6 +3,8 @@
The system plugin gathers general stats on system load, uptime,
and number of users logged in. It is similar to the unix `uptime` command.

Number of CPUs is obtained from the /proc/cpuinfo file.

### Configuration:

```toml
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9 changes: 7 additions & 2 deletions plugins/inputs/system/system.go
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Original file line number Diff line number Diff line change
Expand Up @@ -6,12 +6,12 @@ import (
"fmt"
"log"
"os"
"runtime"
"strings"
"time"

"github.com/influxdata/telegraf"
"github.com/influxdata/telegraf/plugins/inputs"
"github.com/shirou/gopsutil/cpu"
"github.com/shirou/gopsutil/host"
"github.com/shirou/gopsutil/load"
)
Expand All @@ -35,11 +35,16 @@ func (_ *SystemStats) Gather(acc telegraf.Accumulator) error {
return err
}

numCPUs, err := cpu.Counts(true)
if err != nil {
return err
}

fields := map[string]interface{}{
"load1": loadavg.Load1,
"load5": loadavg.Load5,
"load15": loadavg.Load15,
"n_cpus": runtime.NumCPU(),
"n_cpus": numCPUs,
}

users, err := host.Users()
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