IT討論區(80) 做連卡佛真係好幸福,有得減薪50%,IT狗就已被炒,減薪100%

ミクミク９９ · 2020-04-16T19:30:49+08:00

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永續月巴 2020-04-19 01:57:29

香港都好多aws 大客嫁

Code4Food 2020-04-19 02:43:45

Copy 只係一個簡單例子。Non temporal load/store 主要作用係做streaming operation。例如一個array嘅每一個element + 42後放落另一個array。DMA engine可以做copy但再複雜D嘅野應該做唔到。

另外新x86有string op optimization。memcpy可以用rep movsb。表面上係一個byte一個byte copy但實際係俾CPU去決定用邊種方法去copy。CPU唔一定要一次讀一個byte。

Code4Food 2020-04-19 02:48:20

ARM（32bit同64bit，mobile同server）其實我都有掂過，寫過low level code不無留意有DMA engine。如果你唔係用iPhone可能你電話上面有還有少少code係我以前寫落。

小花花＊ 2020-04-19 03:13:41

Code4Food 2020-04-19 03:40:46

少少bug fix。年代久遠哋code可能已經replace晒。

H07252 2020-04-19 09:40:26

事實係好多公司用cloud
無論自已 pet project, startup, 同人夾既project, 宜家大公司都用cloud
s3, serverless已經好有用啦

但non cloud 搬去cloud 未必容易所以有d公司搬幾年都未搬到.

development 角度
cert 就真係唔夠代表你熟 devops

但cloud architect 考cert 有用既
大把人剩係聽過terraform 未落手玩過

Tryfail 2020-04-19 10:01:25