????EC2?????????
?????????????????????????????????????????Amazon???????????????????????????????Amazon EC2????????????EC2????????????????????????κ????????????????????????????Amazon?????????????У??????????????????????SaaS????????????????????HaaS????????????
????HaaS——???????Xen?????????????????????????????????????????????????????????????????????????Linux?????????????????Web????API???API???????????????????????κ???????????
???????????Χ???????豸????Amazon???????С????????????????????????????Amazon EC2??????????????????????????顣???????Amazon EC2???????????????Phoronix Test??????????EC2 m1.large??m1.xlarge??????????????????????????ж??????????????????EC2?????????
?????????????EC2??????????????????Ubuntu 10.10 64λ?????????????????m1.large??m1.xlarge????????в???????????Ubuntu 10.10?????????i.e. c1.medium?? c1.xlarge?? m2.4xlarge?? etc?????????????????????????????????С??????????t1.micro???????????????????????÷???????????????????????
????????????????m1.large??m1.xlarge??????????EC2????λ(ECU)??????? 1.0-1.2 GHz 2007 Opteron ?? 2007 Intel?????????????????m1.large??????????7.5 GB????????EC2????λ?????????????????????EC2????λ????850GB????洢??64λ??????I/O???????????m1.xlarge?????15GB??棬???EC2????λ???????????????????? EC2 ????λ????1.69TB????洢??64 λ??????I/O????????
????????????????????EC2??????????????????????????????????????Phoronix???????????????????????????????Apache?? SQLite??PostMark??Bullet Physics??OpenSSL??Gcrypt????л???????????????????Щ??????????????????????