???????Java????????????
???????????? ???????[ 2013/3/14 9:58:52 ] ????????
??????????????????д??????????????????????????????′??????????????????????????????????????????????????????????????????д??????????????????????????????д-????????????
????????????????????????????????????б??
|
Load-Load |
Load-Store |
Store-Store |
Store-Load |
???????? |
sparc-TSO |
N |
N |
N |
Y |
N |
x86 |
N |
N |
N |
Y |
N |
ia64 |
Y |
Y |
Y |
Y |
N |
PowerPC |
Y |
Y |
Y |
Y |
N |
????????????е?“N”?????????????????????????????“Y”?????????????
??????????????????????????????????????Store-Load??????????????????????????????????????????????????sparc-TSO??x86????????????????????????????????д-???????????????????????????д??????????
?????? ?1??sparc-TSO?????TSO(Total Store Order)?????????????sparc?????????????
?????? ?2??????е?x86????x64??AMD64??
?????? ?3??????ARM????????????????PowerPC??????????????????????????????????
?????? ?4????????????????????????
?????????????????java??????????????????е????λ????????????????????????????????????????JMM??????????????????????
???????? |
?????? |
??? |
LoadLoad Barriers |
Load1; LoadLoad; Load2 |
???Load1?????????????Load2?????к?????????????? |
StoreStore Barriers |
Store1; StoreStore; Store2 |
???Store1??????????????????????μ???棩??????Store2?????к????洢????洢?? |
LoadStore Barriers |
Load1; LoadStore; Store2 |
???Load1????????????Store2?????к?????洢?????μ???檔 |
StoreLoad Barriers |
Store1; StoreLoad; Load2 |
???Store1?????????????????????????μ???棩??????Load2?????к??????????????StoreLoad Barriers???????????????????????????洢??????????????????и????????????????? |
????StoreLoad Barriers?????“?????”????????????????????????????Ч???????????????????????????????????????????????д?????????????и????????????????????????????????д???????е??????????μ?????У?buffer fully flush????
??????
???·???
??????????????????
2023/3/23 14:23:39???д?ò??????????
2023/3/22 16:17:39????????????????????Щ??
2022/6/14 16:14:27??????????????????????????
2021/10/18 15:37:44???????????????
2021/9/17 15:19:29???·???????·
2021/9/14 15:42:25?????????????
2021/5/28 17:25:47??????APP??????????
2021/5/8 17:01:11