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76 lines
1.6 KiB
76 lines
1.6 KiB
package profiler
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import (
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"bytes"
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"encoding/json"
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"net/http"
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"os"
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"sync"
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"time"
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"github.com/harmony-one/harmony/log"
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"github.com/shirou/gopsutil/process"
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)
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type Profiler struct {
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// parameters
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logger log.Logger
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pid int32
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shardID string
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MetricsReportURL string
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// Internal
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proc *process.Process
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}
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var singleton *Profiler
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var once sync.Once
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func GetProfiler() *Profiler {
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once.Do(func() {
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singleton = &Profiler{}
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})
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return singleton
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}
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func (profiler *Profiler) Config(logger log.Logger, shardID string, metricsReportURL string) {
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profiler.logger = logger
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profiler.pid = int32(os.Getpid())
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profiler.shardID = shardID
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profiler.MetricsReportURL = metricsReportURL
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}
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func (profiler *Profiler) LogMemory() {
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for {
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// log mem usage
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info, _ := profiler.proc.MemoryInfo()
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memMap, _ := profiler.proc.MemoryMaps(false)
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profiler.logger.Info("Mem Report", "info", info, "map", memMap, "shardID", profiler.shardID)
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time.Sleep(3 * time.Second)
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}
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}
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func (profiler *Profiler) LogCPU() {
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for {
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// log cpu usage
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percent, _ := profiler.proc.CPUPercent()
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times, _ := profiler.proc.Times()
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profiler.logger.Info("CPU Report", "percent", percent, "times", times, "shardID", profiler.shardID)
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time.Sleep(3 * time.Second)
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}
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}
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func (profiler *Profiler) LogMetrics(metrics map[string]interface{}) {
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jsonValue, _ := json.Marshal(metrics)
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rsp, err := http.Post(profiler.MetricsReportURL, "application/json", bytes.NewBuffer(jsonValue))
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if err == nil {
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defer rsp.Body.Close()
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}
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}
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func (profiler *Profiler) Start() {
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profiler.proc, _ = process.NewProcess(profiler.pid)
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go profiler.LogCPU()
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go profiler.LogMemory()
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}
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