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Code Issues Releases Activity

fix gcstats output

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This commit is contained in:
Jaana Burcu Dogan 2016-11-03 21:30:12 -07:00
parent 852c757979
commit 3a0975c5cf
1 changed files with 13 additions and 0 deletions
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13
agent/agent.go
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@ -12,6 +12,8 @@ import (
"net" "net"
"os" "os"
"runtime" "runtime"
"runtime/debug"
"time"
) )
const ( const (
@ -20,6 +22,9 @@ const (
// GC runs the garbage collector. // GC runs the garbage collector.
GC = byte(0x2) GC = byte(0x2)
// GCStats prints GC stats.
GCStats = byte(0x3)
) )
func init() { func init() {
@ -61,6 +66,14 @@ func handle(conn net.Conn, msg []byte) error {
runtime.GC() runtime.GC()
_, err := conn.Write([]byte("ok")) _, err := conn.Write([]byte("ok"))
return err return err
case GCStats:
var stats debug.GCStats
debug.ReadGCStats(&stats)
fmt.Fprintf(conn, "Num GC: %v\n", stats.NumGC)
if stats.NumGC > 0 {
fmt.Fprintf(conn, "Last GC: %v ago\n", time.Now().Sub(stats.LastGC))
fmt.Fprintf(conn, "Total pause: %v\n", stats.PauseTotal)
}
} }
return nil return nil
} }