Exemplo n.º 1
0
func logLinuxStats() {
	if !log.V(1) {
		return
	}

	// We don't know which fields in struct mallinfo are most relevant to us yet,
	// so log it all for now.
	//
	// A major caveat is that mallinfo() returns stats only for the main arena.
	// glibc uses multiple allocation arenas to increase malloc performance for
	// multithreaded processes, so mallinfo may not report on significant parts
	// of the heap.
	mi := C.mallinfo()
	log.Infof("mallinfo stats: ordblks=%s, smblks=%s, hblks=%s, hblkhd=%s, usmblks=%s, fsmblks=%s, "+
		"uordblks=%s, fordblks=%s, keepcost=%s",
		humanize.IBytes(uint64(mi.ordblks)),
		humanize.IBytes(uint64(mi.smblks)),
		humanize.IBytes(uint64(mi.hblks)),
		humanize.IBytes(uint64(mi.hblkhd)),
		humanize.IBytes(uint64(mi.usmblks)),
		humanize.IBytes(uint64(mi.fsmblks)),
		humanize.IBytes(uint64(mi.uordblks)),
		humanize.IBytes(uint64(mi.fordblks)),
		humanize.IBytes(uint64(mi.fsmblks)))

	// malloc_info() emits a *lot* of XML, partly because it generates stats for
	// all arenas, unlike mallinfo().
	//
	// TODO(cdo): extract the useful bits and record to time-series DB.
	if !log.V(2) {
		return
	}

	// Create a memstream and make malloc_info() output to it.
	var buf *C.char
	var bufSize C.size_t
	memstream := C.open_memstream(&buf, &bufSize)
	if memstream == nil {
		log.Warning("couldn't open memstream")
		return
	}
	defer func() {
		C.fclose(memstream)
		C.free(unsafe.Pointer(buf))
	}()
	if rc := C.malloc_info(0, memstream); rc != 0 {
		log.Warningf("malloc_info returned %d", rc)
		return
	}
	if rc := C.fflush(memstream); rc != 0 {
		log.Warningf("fflush returned %d", rc)
		return
	}
	log.Infof("malloc_info: %s", C.GoString(buf))
}
Exemplo n.º 2
0
// Handles the message "sistats".
// Returns:
//  unencrypted reply
func sistats() *xml.Hash {
	stats := xml.NewHash("xml", "header", "answer")
	stats.Add("source", config.ServerSourceAddress)
	stats.Add("target", "GOSA")
	answer := stats.Add("answer1")

	answer.Add("Version", config.Version)
	answer.Add("Revision", config.Revision)
	answer.Add("Uptime", time.Since(startTime))
	answer.Add("Compiler", runtime.Compiler)
	answer.Add("Go-Version", runtime.Version())
	answer.Add("Architecture", runtime.GOARCH)
	answer.Add("OS", runtime.GOOS)
	answer.Add("NumCPU", runtime.NumCPU())
	answer.Add("NumGoroutine", runtime.NumGoroutine())
	answer.Add("AvgRequestTime", time.Duration((atomic.LoadInt64(&RequestProcessingTime)+50)/100))
	susipeers := 0
	susipeersdown := 0
	nonsusipeers := 0
	nonsusipeersdown := 0
	for _, addr := range db.ServerAddresses() {
		if Peer(addr).Downtime() == 0 {
			if Peer(addr).IsGoSusi() {
				susipeers++
			} else {
				nonsusipeers++
			}
		} else {
			if Peer(addr).IsGoSusi() {
				susipeersdown++
			} else {
				nonsusipeersdown++
			}
		}
	}
	answer.Add("SusiPeersUp", susipeers)
	answer.Add("SusiPeersDown", susipeersdown)
	answer.Add("NonSusiPeersUp", nonsusipeers)
	answer.Add("NonSusiPeersDown", nonsusipeersdown)
	var clistats ClientStats
	db.ClientsQuery(&clistats)
	time.Sleep(2 * time.Second) // give Up checks time to succeed
	answer.Add("KnownClients", clistats.KnownClients)
	answer.Add("KnownTLSClients", clistats.KnownTLSClients)
	up := atomic.LoadInt32(&clistats.MyClientsUp)
	answer.Add("MyClientsUp", up)
	answer.Add("MyClientsDown", clistats.MyClients-int(up))

	answer.Add("TotalRegistrations", atomic.LoadInt32(&TotalRegistrations))
	answer.Add("MissedRegistrations", atomic.LoadInt32(&MissedRegistrations))

	var m runtime.MemStats
	runtime.ReadMemStats(&m)
	answer.Add("Alloc", m.Alloc)
	answer.Add("TotalAlloc", m.TotalAlloc)
	answer.Add("Sys", m.Sys)
	answer.Add("Lookups", m.Lookups)
	answer.Add("Mallocs", m.Mallocs)
	answer.Add("Frees", m.Frees)
	answer.Add("HeapAlloc", m.HeapAlloc)
	answer.Add("HeapSys", m.HeapSys)
	answer.Add("HeapIdle", m.HeapIdle)
	answer.Add("HeapInuse", m.HeapInuse)
	answer.Add("HeapReleased", m.HeapReleased)
	answer.Add("HeapObjects", m.HeapObjects)
	answer.Add("StackInuse", m.StackInuse)
	answer.Add("StackSys", m.StackSys)
	answer.Add("MSpanInuse", m.MSpanInuse)
	answer.Add("MSpanSys", m.MSpanSys)
	answer.Add("MCacheInuse", m.MCacheInuse)
	answer.Add("MCacheSys", m.MCacheSys)
	answer.Add("BuckHashSys", m.BuckHashSys)
	answer.Add("NextGC", m.NextGC)
	answer.Add("LastGC", m.LastGC)
	answer.Add("PauseTotalNs", m.PauseTotalNs)
	answer.Add("NumGC", m.NumGC)
	answer.Add("EnableGC", m.EnableGC)
	answer.Add("DebugGC", m.DebugGC)

	mallinfo := C.mallinfo()
	answer.Add("mallinfo_arena", mallinfo.arena)
	answer.Add("mallinfo_ordblks", mallinfo.ordblks)
	answer.Add("mallinfo_hblks", mallinfo.hblks)
	answer.Add("mallinfo_hblkhd", mallinfo.hblkhd)
	answer.Add("mallinfo_uordblks", mallinfo.uordblks)
	answer.Add("mallinfo_fordblks", mallinfo.fordblks)
	answer.Add("mallinfo_keepcost", mallinfo.keepcost)

	return stats
}