Reducing page size to 512KB

Author: fulmicoton

src/mem/arena.rs

@@ -6,7 +6,7 @@ use std::time::Instant;
 use mock_instant::Instant;
 
 #[cfg(not(test))]
-pub const PAGE_SIZE: usize = 1 << 20;
+pub const PAGE_SIZE: usize = 1 << 19;
 
 #[cfg(test)]
 pub const PAGE_SIZE: usize = 7;