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HTTP??????

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发表于 2019-7-23 02:58:03 | 显示全部楼层 |阅读模式
?????????
1. ????
???????? tcp?????????????????????????TCP???????????????RTT???????????????
2. ???
HTTP/1.1???? Keep-Alive ?????? pipeline????????? TCP ??????????????????pipeline??????GET?HEAD???
3. ??
3.1 Cache-control ??????????????????? max-age ???????????????????????????????????????????????? max-age = 0????????????????????????????????????????????
3.2 If-Modified-Since ??????????????????????????????????????????????????????????? 304 Not Modified ?????????????
HTTP/2.0 ????
1. ????
???????????? key value ???????????????????????????
2. ???????
???TCP???????????????????ID??????????????????????????????????????????
?????????????????????Header??Data????????????????
????????????????????????????????????????????????????????????????????????????????????????????????
3. ?????
??????????????????????
QUIC?google?????
1. ???????
HTTP/2.0???TCP?????TCP??????????????IP????????IP???????????????????????????????????????????????????????????????HTTP/2.0???????TCP???????????
QUIC??????????????????64???????ID?????UDP???????????IP???????????????ID????????????
2. ????????
? HTTP/2.0?????? QUIC ????????? stream?????? HTTP????? QUIC ??? UDP???????????? stream ???????????? stream2 ????? UDP??????? stream3 ??? UDP ???? stream2 ??????????? stream3 ?????????????????

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