HTTP レイテンシー測定ツール httping , http_ping

[root@alaska ~]# cat /etc/redhat-release

Fedora release 11 (Leonidas)

[root@alaska ~]# uname -r

2.6.29.5-191.fc11.i686.PAE

httping , http_ping

両方とも、http の latency を計測するツール。

どっちがいいんだろー。

http_ping のほうが、コネクションの開設、最初に受け取ったレスポンス、

最後のデータを受け取ったまでの時間が出力されるので、こっちのほうが

いいのかなー。

・http_ping

[root@alaska ~]# yum list | grep http_ping

http_ping.i586 20050629-9.fc11 @fedora

connect: コネクション開設

response: GETから最初のレスをうけるまで

data: その後のすべてのデータを受信するまで( 200 OK まで ? )

なのかな。。

total = connect + response + data　になる。

[root@alaska ~]# http_ping -c 1 http://www.google.co.jp.

5454 bytes from http://www.google.co.jp.: 118.501 ms (49.529c/62.962r/6.01d)

--- http://www.google.co.jp. http_ping statistics ---

1 fetches started, 1 completed (100%), 0 failures (0%), 0 timeouts (0%)

total min/avg/max = 118.501/118.501/118.501 ms

connect min/avg/max = 49.529/49.529/49.529 ms

response min/avg/max = 62.962/62.962/62.962 ms

data min/avg/max = 6.01/6.01/6.01 ms

[root@alaska ~]# tshark -i eth0 port 80

Running as user "root" and group "root". This could be dangerous.

Capturing on eth0

0.000000 192.168.1.200 -> 74.125.153.104 TCP 33066 > http [SYN] Seq=0 Win=5840 Len=0 MSS=1460 TSV=7633558 TSER=0 WS=6

0.049293 74.125.153.104 -> 192.168.1.200 TCP http > 33066 [SYN, ACK] Seq=0 Ack=1 Win=5672 Len=0 MSS=1430 TSV=448182951 TSER=7633558 WS=6

0.049364 192.168.1.200 -> 74.125.153.104 TCP 33066 > http [ACK] Seq=1 Ack=1 Win=5888 Len=0 TSV=7633608 TSER=448182951

0.049498 192.168.1.200 -> 74.125.153.104 HTTP GET / HTTP/1.0

0.103264 74.125.153.104 -> 192.168.1.200 TCP http > 33066 [ACK] Seq=1 Ack=67 Win=5696 Len=0 TSV=448183004 TSER=7633608

0.112272 74.125.153.104 -> 192.168.1.200 TCP [TCP segment of a reassembled PDU]

0.112355 192.168.1.200 -> 74.125.153.104 TCP 33066 > http [ACK] Seq=67 Ack=1419 Win=8768 Len=0 TSV=7633671 TSER=448183012

0.115288 74.125.153.104 -> 192.168.1.200 TCP [TCP segment of a reassembled PDU]

0.115368 192.168.1.200 -> 74.125.153.104 TCP 33066 > http [ACK] Seq=67 Ack=2837 Win=11648 Len=0 TSV=7633674 TSER=448183012

0.115407 74.125.153.104 -> 192.168.1.200 TCP [TCP segment of a reassembled PDU]

0.115430 192.168.1.200 -> 74.125.153.104 TCP 33066 > http [ACK] Seq=67 Ack=4255 Win=14528 Len=0 TSV=7633674 TSER=448183012

0.115445 74.125.153.104 -> 192.168.1.200 TCP [TCP segment of a reassembled PDU]

0.115472 192.168.1.200 -> 74.125.153.104 TCP 33066 > http [ACK] Seq=67 Ack=4412 Win=17408 Len=0 TSV=7633674 TSER=448183012

0.118222 74.125.153.104 -> 192.168.1.200 HTTP HTTP/1.0 200 OK (text/html)

0.118354 192.168.1.200 -> 74.125.153.104 TCP 33066 > http [FIN, ACK] Seq=67 Ack=5771 Win=20288 Len=0 TSV=7633677 TSER=448183013

0.171527 74.125.153.104 -> 192.168.1.200 TCP http > 33066 [ACK] Seq=5771 Ack=68 Win=5696 Len=0 TSV=448183073 TSER=7633677

^C16 packets captured

[root@alaska ~]#

・httping

[root@alaska ~]# httping -V

HTTPing v1.2.9, (C) 2003-2008 folkert@vanheusden.com

SSL support included

[root@alaska ~]# httping -G -c 1 -h www.google.co.jp.

PING www.google.co.jp.:80 (http://www.google.co.jp.:80/):

connected to www.google.co.jp.:80, seq=0 time=144.73 ms

--- http://www.google.co.jp.:80/ ping statistics ---

1 connects, 1 ok, 0.00% failed

round-trip min/avg/max = 144.7/144.7/144.7 ms

[root@alaska ~]# tshark -i eth0 port 80

Running as user "root" and group "root". This could be dangerous.

Capturing on eth0

0.000000 192.168.1.200 -> 74.125.153.99 TCP 51489 > http [SYN] Seq=0 Win=5840 Len=0 MSS=1460 TSV=7890379 TSER=0 WS=6

0.049348 74.125.153.99 -> 192.168.1.200 TCP http > 51489 [SYN, ACK] Seq=0 Ack=1 Win=5672 Len=0 MSS=1430 TSV=65665032 TSER=7890379 WS=6

0.049412 192.168.1.200 -> 74.125.153.99 TCP 51489 > http [ACK] Seq=1 Ack=1 Win=5888 Len=0 TSV=7890428 TSER=65665032

0.049548 192.168.1.200 -> 74.125.153.99 HTTP GET http://www.google.co.jp.:80/ HTTP/1.0

0.102977 74.125.153.99 -> 192.168.1.200 TCP http > 51489 [ACK] Seq=1 Ack=99 Win=5696 Len=0 TSV=65665086 TSER=7890428

0.115296 74.125.153.99 -> 192.168.1.200 TCP [TCP segment of a reassembled PDU]

0.115328 192.168.1.200 -> 74.125.153.99 TCP 51489 > http [ACK] Seq=99 Ack=1419 Win=8768 Len=0 TSV=7890494 TSER=65665097

0.118277 74.125.153.99 -> 192.168.1.200 TCP [TCP segment of a reassembled PDU]

0.118312 192.168.1.200 -> 74.125.153.99 TCP 51489 > http [ACK] Seq=99 Ack=2837 Win=11648 Len=0 TSV=7890497 TSER=65665097

0.118399 74.125.153.99 -> 192.168.1.200 TCP [TCP segment of a reassembled PDU]

0.118433 192.168.1.200 -> 74.125.153.99 TCP 51489 > http [ACK] Seq=99 Ack=4255 Win=14528 Len=0 TSV=7890497 TSER=65665097

0.118450 74.125.153.99 -> 192.168.1.200 TCP [TCP segment of a reassembled PDU]

0.118482 192.168.1.200 -> 74.125.153.99 TCP 51489 > http [ACK] Seq=99 Ack=4412 Win=17408 Len=0 TSV=7890497 TSER=65665097

0.121405 74.125.153.99 -> 192.168.1.200 HTTP HTTP/1.0 200 OK (text/html)

0.121533 192.168.1.200 -> 74.125.153.99 TCP 51489 > http [FIN, ACK] Seq=99 Ack=5771 Win=20288 Len=0 TSV=7890500 TSER=65665097

0.174533 74.125.153.99 -> 192.168.1.200 TCP http > 51489 [ACK] Seq=5771 Ack=100 Win=5696 Len=0 TSV=65665157 TSER=7890500

^C16 packets captured

[root@alaska ~]#

stevie salas のニューアルバム set it on blast いいなー。

グルーブ感がたまらん。

3曲目の Block Rockin がお気に入り。

リフ、バッキングがかっこいい。繰り返し聞きまくってる。