腾讯大讲堂40 web类服务用户体验优化综述

1. web 2008-5 galen

3. web 2007-9 4. -

8. QQ 9. 0.10% 9 0.20% 29 0.30% 32 0.60% 69 1.00% 109 1.00% 116 1.10% 125 1.10% 126 1.70% 187 1.70% 189 1.80% 201 2.10% 229 2.20% 241 2.40% 269 2.50% 276 2.80% 314 2.80% 316 3.00% 330 3.10% 348 3.30% 372 3.60% 396 3.60% 397 3.90% 428 4.20% 463 4.20% 463 4.40% 486 5.50% 609 6.40% 707 7.10% 790 8.90% 988 13.40% 1486 3.89% 12658059 4.30% 14000904 4.39% 14303788 4.51% 14677836 4.73% 15410389 5.90% 19209091 6.15% 20025632 6.97% 22724105 19.88% 64769143 100% 325799287 qzone 10. -QZone 0.0512270.867 0.0910641.6712 0.119993.7315 0.116437.5315 0.1125362.7516 0.3010721.1042 0.348972.4848 0.3710392.4252 0.439911.2360 0.487836.4168 0.5311057.9675 0.5417783.5476 0.6713688.8294 0.8014469.96112 0.9110725.01128 1.3511275.13190 2.1711002.19304 2.196995.33307 2.275818.74319 2.3112558.40325 2.687758.87377 2.806984.71393 2.969963.27415 2.988382.20418 3.169744.14444 3.879336.31543 6.2510303.54877 6.319842.69886 7.919244.211110 8.688939.321219 10.7414237.011508 11.068758.761553 14.489075.802033 (%) 11.

12. ADSL LAN 13.

, ,DNS

14. -1

15. -2

16. -3

IDC 80

99.9% 45

99.99% 5

99.9 99.99%

99.99% 99.9%

17. -4http QQ.COM http://www.qq.com/ 50k Blocked: DNS : : web server TCP : HTTP : server : server First Byte: : HTTP 18.

19. 2007-9 20.

IDC, IDC backbone

httpwatch, yahoo YSlow

agent server

22. IDC 23. IDC

http://idcspeed.oa.com/cgi-bin/index

http://idcspeed.oa.com/cgi-bin/qqpack/index

24. IDC 25. IDC 26.

http://itil.isd.com/itil/index.php

27. CGI 28.

29. - Qzone

30. -qzone 10 31. peer

http://www.gomez.com/login.html

32. QQ

20kbaidu

80kbaidu

51 33.

1st byte

content download

, qqvideo ( )

2. 3. = /( + ) 35. -HttpWatch(QQMusic ) Blocked 36. yahoo YSlow

FireFox

QZone :

:F :30

37. YSlow

12 , yahoo 4

Qzone :

38. 2007-9 39. server

9.3 CGI

40. IDC 1

IDC IDC

IDC 2 42. IDC

1000 6ms

25.8ms

ping 30ms

33.6ms

12 101 113 22:00-24:00 12 102 114 20:00-22:00 2 95 97 18:00-20:00 14 90 104 16:00-18:00 17 89 106 14:00-16:00 14 97 111 12:00-14:00 8 93 101 10:00-12:00 3 87 90 8:00-10:00 11 72 83 6:00- 8:00 27 59 86 4:00- 6:00 44 69 113 2:00- 4:00 38 83 121 0:00- 2:00 (ms) 43.

45. 46. -

(CERNET)

47. IDC

48. -QZone PING 222.201.68.10 (222.201.68.10) 56(84) bytes of data. 64 bytes from 222.201.68.10: icmp_seq=1 ttl=119 time=227 ms 64 bytes from 222.201.68.10: icmp_seq=2 ttl=119 time=213 ms 64 bytes from 222.201.68.10: icmp_seq=3 ttl=119 time=211 ms 64 bytes from 222.201.68.10: icmp_seq=4 ttl=119 time=221 ms 64 bytes from 222.201.68.10: icmp_seq=5 ttl=119 time=238 ms 64 bytes from 222.201.68.10: icmp_seq=6 ttl=119 time=244 ms traceroute to 222.201.68.10 (222.201.68.10), 30 hops max, 40 byte packets 1222.202.96.130 (222.202.96.130)0.688 ms0.357 ms0.453 ms 2210.39.19.5 (210.39.19.5)0.240 ms0.219 ms0.187 ms 3202.112.53.129 (202.112.53.129)4.227 ms4.117 ms4.134 ms 4* * * 5202.112.19.102 (202.112.19.102)3.298 ms3.669 ms3.664 ms 6222.200.253.5 (222.200.253.5)3.865 ms3.856 ms3.865 ms 7222.200.252.14 (222.200.252.14)10.405 ms10.408 ms10.535 ms 8222.200.129.22 (222.200.129.22)236.715 ms236.832 ms 8939.3193 1219 14237.0137 1508 8758.7646 1553 9075.8047 2033 49.

Web cache

cache 1 www.yahoo.com 50. cache Expires header 3 user re-requests www.yahoo.com with a full cache 1 user requests www.yahoo.com 2 user requests other web pages 51.

Qzone 51

qzone item

52. 2007-9 53.

160.00 TCO 0.137 TCO 15.000 G 425.000 Qzone 95.000 T 270.000 T 43.200 TCO 14.860 TCO 146.48 TCO 0.290 TCO 8.200 G 290.000 Qzone 190.000 T 472.000 T 69.140 TCO 14.860 TCO 54. IDC 1

IDC IDC

QQGame QQ

IDC 2 56.

0 IDC 1 IDC

1 IDC 1-3 IDC

2 IDC 1-3 IDC

3 IDC 3 6 IDC

4 CDN 15 IDC

4 CDN 3 IDC 2 IDC 1 IDC 57. IDC

QQ.com

qq.Com

5.47 QQ.COM14 4.65 13 4.65 Live.com12 4.6 265 11 4.47 10 4.24 9 4.15 8 4.03 7 3.31 6 2.48 5 1.89 4 1.08 SOSO 3 1.05 126 2 0.7 1 ( ) 58. Imgcache

59. CDN CDN

CDN Content Delivery Networks

60. Internet 61. CDN 62. CDN

63. GSLB

IDC GSLB

64. GSLB Root DNS Server LocalDns Server QQ DNS Server 1 2 3 4 5 6 7 8 9 SLB Server &Cache IDC1 SLB Server &Cache IDC2 SLB Server &Cache IDC3 GSLB IP 65. SLB Server &Cache SLB Server &Cache IDC1 IDC2 SLB Server &Cache IDC3 GSLB GSLB GSLB GSLB Internet DNS 1 2 3 4 5 6 7 66. IDC

: , qzone

SLB QZone Server SLB SLB 10G 10G 10G 1 2 3 4 67.

80-90%

QZone 85%

69. http

http keep-alive

Qzone image

70. http

Sina :

4 (i0.sinaimg.cn-i3.sinaimg.cn)

, http

71. gzip

Apache gzip

Apache 2.x: mod_deflate

AddOutputFilterByType DEFLATE text/html text/css application/x-javascript

HTTP request

Accept-Encoding: gzip, deflate

HTTP response

Content-Encoding: gzip

Vary: Accept-Encoding

imgcache

XML gzip

72. cache

yahoo.com.cn

Expires 8 cache:

HTTP/1.1 200 OK

Last-Modified: Wed, 21 May 2008 06:11:32GMTExpires: Fri, 15 Apr 2016 20:00:00GMTContent-Type: image/gifContent-Length: 7424Date: Wed, 21 May 2008 06:13:14 GMT

Age: 339592

cache , :

Cache-Control: max-age=8640000

Cache 3

73. etag

server etag

Apache:inode -size-timestamp

IIS:Filetimestamp: ChangeNumber

>1 server304

(n-1)/n

Apache:FileETag none

IIS:http://support.microsoft.com/kb/922703/

74. http cookie

Cookie pvid=360028384; flv=9.0; 1531785_CODE=000596_51|399001_51|000001_1|600028_1|600048_1|600068_1|600816_1|601398_1|601628_1|601857_1|; 1531785_HKCODE=; 1531785_JJCODE=; stk_uin=1531785; pt2gguin=o0001531785; airkey=788e8a9fc4015d1e8b8ba0c46ad2d9775afb77236084753d64969b9d48d8916c; icache=EAGECLA; aduid=ST6F27XY; adid=1531785; adSP=jzlO56pAUEvKZE9W34jAq/mH2AOLhhoQ4xLa1dyWEEQ=_7811_326830_1214527781_; RECENT_CODE=000002_51%7C601628_1%7C600011_1%7C600048_1%7C000596_51%7C600816_1%7C601857_1%7C600050_1%7C600030_1%7C580989_1%7C; ispai2_1531785=2; uin_cookie=1531785; euin_cookie=AQAYGxjgIbJvQFgGjIbzPOZVqsRv9vhKHEWGGAAAAADEby+pcvO+YAsKo2Mdqn2DSj75qA==; pgv=ssid=s182297792

qq.com cookie 660

cookie

qq.com , :

www.tcimage.cn

75. DNS lookup

DNS lookup

Lookup ISP

DNS server

css js flash

76. - www.sina.com.cnmusic.qq.com 77. httpwatch

http ,

78. 10 item 79.

80. Q&A

腾讯大讲堂40 web类服务用户体验优化综述

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