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package main
import (
"runtime"
"time"
"github.com/Xe/ln"
)
func init() {
ln.Log(ln.F{
"action": "started_up",
"every": "20_seconds",
"what": "gc_metrics",
})
go func() {
for {
time.Sleep(20 * time.Second)
gatherMetrics()
}
}()
}
func gatherMetrics() {
stats := &runtime.MemStats{}
runtime.ReadMemStats(stats)
ln.Log(ln.F{
"gc-collections": stats.NumGC,
"gc-stw-pause-total": stats.PauseTotalNs,
"live-object-count": stats.Mallocs - stats.Frees,
"heap-bytes": stats.Alloc,
"stack-bytes": stats.StackInuse,
})
}
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