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core, ethdb, metrics, p2p: expose various counter metrics for grafana

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This commit is contained in:
Péter Szilágyi
2019-06-10 14:21:02 +03:00
parent f9c0e093ed
commit b02958b9c5
15 changed files with 341 additions and 117 deletions
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36
metrics/cpu.go Normal file
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@ -0,0 +1,36 @@
// 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/>.
package metrics
import "github.com/elastic/gosigar"
// CPUStats is the system and process CPU stats.
type CPUStats struct {
GlobalTime int64 // Time spent by the CPU working on all processes
GlobalWait int64 // Time spent by waiting on disk for all processes
LocalTime int64 // Time spent by the CPU working on this process
}
// ReadCPUStats retrieves the current CPU stats.
func ReadCPUStats(stats *CPUStats) {
global := gosigar.Cpu{}
global.Get()
stats.GlobalTime = int64(global.User + global.Nice + global.Sys)
stats.GlobalWait = int64(global.Wait)
stats.LocalTime = getProcessCPUTime()
}

35
metrics/cpu_syscall.go Normal file
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@ -0,0 +1,35 @@
// 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 metrics
import (
"syscall"
"github.com/ethereum/go-ethereum/log"
)
// getProcessCPUTime retrieves the process' CPU time since program startup.
func getProcessCPUTime() int64 {
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 int64(usage.Utime.Sec+usage.Stime.Sec)*100 + int64(usage.Utime.Usec+usage.Stime.Usec)/10000 //nolint:unconvert
}

23
metrics/cpu_windows.go Normal file
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@ -0,0 +1,23 @@
// 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/>.
package metrics
// getProcessCPUTime returns 0 on Windows as there is no system call to resolve
// the actual process' CPU time.
func getProcessCPUTime() int64 {
return 0
}

23
metrics/metrics.go
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@ -61,18 +61,27 @@ func CollectProcessMetrics(refresh time.Duration) {
if !Enabled {
return
}
refreshFreq := int64(refresh / time.Second)
// Create the various data collectors
cpuStats := make([]*CPUStats, 2)
memstats := make([]*runtime.MemStats, 2)
diskstats := make([]*DiskStats, 2)
for i := 0; i < len(memstats); i++ {
cpuStats[i] = new(CPUStats)
memstats[i] = new(runtime.MemStats)
diskstats[i] = new(DiskStats)
}
// Define the various metrics to collect
cpuSysLoad := GetOrRegisterGauge("system/cpu/sysload", DefaultRegistry)
cpuSysWait := GetOrRegisterGauge("system/cpu/syswait", DefaultRegistry)
cpuProcLoad := GetOrRegisterGauge("system/cpu/procload", DefaultRegistry)
memPauses := GetOrRegisterMeter("system/memory/pauses", DefaultRegistry)
memAllocs := GetOrRegisterMeter("system/memory/allocs", DefaultRegistry)
memFrees := GetOrRegisterMeter("system/memory/frees", DefaultRegistry)
memInuse := GetOrRegisterMeter("system/memory/inuse", DefaultRegistry)
memPauses := GetOrRegisterMeter("system/memory/pauses", DefaultRegistry)
memHeld := GetOrRegisterGauge("system/memory/held", DefaultRegistry)
memUsed := GetOrRegisterGauge("system/memory/used", DefaultRegistry)
var diskReads, diskReadBytes, diskWrites, diskWriteBytes Meter
var diskReadBytesCounter, diskWriteBytesCounter Counter
@ -91,11 +100,17 @@ func CollectProcessMetrics(refresh time.Duration) {
location1 := i % 2
location2 := (i - 1) % 2
ReadCPUStats(cpuStats[location1])
cpuSysLoad.Update((cpuStats[location1].GlobalTime - cpuStats[location2].GlobalTime) / refreshFreq)
cpuSysWait.Update((cpuStats[location1].GlobalWait - cpuStats[location2].GlobalWait) / refreshFreq)
cpuProcLoad.Update((cpuStats[location1].LocalTime - cpuStats[location2].LocalTime) / refreshFreq)
runtime.ReadMemStats(memstats[location1])
memPauses.Mark(int64(memstats[location1].PauseTotalNs - memstats[location2].PauseTotalNs))
memAllocs.Mark(int64(memstats[location1].Mallocs - memstats[location2].Mallocs))
memFrees.Mark(int64(memstats[location1].Frees - memstats[location2].Frees))
memInuse.Mark(int64(memstats[location1].Alloc - memstats[location2].Alloc))
memPauses.Mark(int64(memstats[location1].PauseTotalNs - memstats[location2].PauseTotalNs))
memHeld.Update(int64(memstats[location1].HeapSys - memstats[location1].HeapReleased))
memUsed.Update(int64(memstats[location1].Alloc))
if ReadDiskStats(diskstats[location1]) == nil {
diskReads.Mark(diskstats[location1].ReadCount - diskstats[location2].ReadCount)