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))
}
// 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
}