[問題] 讓system不cache某個特定變數
想請問一下版上各位
最近在Linux上開發一些測試程式的時候
因為想純粹測量Main memory到processor的local memory的latency
所以想關掉cache來測試整體平均的數值
比如:
int mem[1024];
想一直測試這個陣列在兩層memory間的搬運
但是又不想在下一個run的時候
讓某些值被cache住
請問有哪些directive或者關鍵字可以讓compiler去標記他
或者讓system不去cache住這整個array嗎?
（在不動到system code(Linux)的方法?）
謝謝
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