go-ethereum/dashboard/cpu.go
Kurkó Mihály 05ade19302 dashboard: CPU, memory, diskIO and traffic on the footer (#15950)
* dashboard: footer, deep state update

* dashboard: resolve asset path

* dashboard: prevent state update on every reconnection

* dashboard: fix linter issue

* dashboard, cmd: minor UI fix, include commit hash

* dashboard: gitCommit renamed to commit

* dashboard: move the geth version to the right, make commit optional

* dashboard: memory, traffic and CPU on footer

* dashboard: fix merge

* dashboard: CPU, diskIO on footer

* dashboard: rename variables, use group declaration

* dashboard: docs
2018-01-23 22:51:04 +02:00

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Go

// Copyright 2018 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
// +build !windows
package dashboard
import (
"syscall"
"github.com/ethereum/go-ethereum/log"
)
// getProcessCPUTime retrieves the process' CPU time since program startup.
func getProcessCPUTime() float64 {
var usage syscall.Rusage
if err := syscall.Getrusage(syscall.RUSAGE_SELF, &usage); err != nil {
log.Warn("Failed to retrieve CPU time", "err", err)
return 0
}
return float64(usage.Utime.Sec+usage.Stime.Sec) + float64(usage.Utime.Usec+usage.Stime.Usec)/1000000
}