populate pages

adamant-pwn · adamant-pwn · commit 9d865a9dcbf4 · 2025-04-22T23:35:58.000+02:00
diff --git a/cp-algo/util/new_big.hpp b/cp-algo/util/new_big.hpp
@@ -9,6 +9,7 @@ namespace cp_algo {
             MAP_PRIVATE | MAP_ANONYMOUS,
             -1, 0);
         madvise(raw, len * sizeof(T), MADV_HUGEPAGE);
+        madvise(raw, len * sizeof(T), MADV_POPULATE_WRITE);
         return static_cast<T*>(raw);
     }
     template<typename T>

Original file line number	Diff line number	Diff line change
`@@ -9,6 +9,7 @@ namespace cp_algo {`
`9`	`9`	`MAP_PRIVATE \| MAP_ANONYMOUS,`
`10`	`10`	`-1, 0);`
`11`	`11`	`madvise(raw, len * sizeof(T), MADV_HUGEPAGE);`
	`12`	`+ madvise(raw, len * sizeof(T), MADV_POPULATE_WRITE);`
`12`	`13`	`return static_cast<T*>(raw);`
`13`	`14`	`}`
`14`	`15`	`template<typename T>`