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some go performance stuff added

This commit is contained in:
Miek Gieben 2011-08-08 16:40:57 +02:00
parent 54bf67a5f0
commit 12a419e0f1
2 changed files with 5 additions and 13 deletions
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_examples/qperf/_go_.6
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18
_examples/qperf/qperf.go
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@ -15,24 +15,18 @@ func main() {
queries := flag.Int("queries", 20, "number of concurrent queries to perform")
maxproc := flag.Int("maxproc", 4, "set GOMAXPROCS to this value")
looptime := flag.Int("time", 2, "number of seconds to query")
reflect := flag.Bool("reflect", false, "enable reflection")
nameserver := flag.String("ns", "127.0.0.1:53", "the nameserver to query")
cpuprofile := flag.String("cpuprofile", "", "write cpu profile to file")
flag.Usage = func() {
fmt.Fprintf(os.Stderr, "Usage: %s [qtype] [qclass] [name]", os.Args[0])
flag.PrintDefaults()
}
queries_send := int64(0)
qid := uint16(1)
qtype := uint16(dns.TypeMX)
qclass := uint16(dns.ClassINET) // Default qclass
qname := "miek.nl"
// nameserver := "127.0.0.1:53"
// nameserver = "193.0.14.129:53" // k.root-server.net
// nameserver = "213.154.224.1:53" // open.nlnetlabs.nl
// nameserver = "193.110.157.135:53" // xelerance.com
// nameserver = "195.169.221.157:53" // Jelte, bind10-devel
flag.Parse()
if *cpuprofile != "" {
f, err := os.Create(*cpuprofile)
@ -44,7 +38,7 @@ func main() {
}
runtime.GOMAXPROCS(*maxproc)
start := time.Nanoseconds()
fmt.Printf("Starting %d query functions. GOMAXPROCS set to %d\n", *queries, *maxproc)
fmt.Printf("Starting %d query functions. GOMAXPROCS set to %d. *reflection set to %v*\n", *queries, *maxproc, *reflect)
fmt.Printf("Querying %s\n", *nameserver)
for i := 0; i < *queries; i++ {
go func() {
@ -67,13 +61,11 @@ func main() {
log.Print(err)
continue
}
r.Unpack(pktbuf[:n])
//println(r.MsgHdr.String())
n=n
r=r
if *reflect {
r.Unpack(pktbuf[:n])
}
queries_send++
qid++
//break // stop after 1 query
}
}()
}