bound

Author: oech3

src/uu/sort/src/chunks.rs

@@ -181,7 +181,9 @@ pub fn read<T: Read>(
     } = recycled_chunk;
     if buffer.len() < carry_over.len() {
         buffer.resize(carry_over.len(), 0);
-        let new_len = (carry_over.len() * 2).max(1024 * 1024);
+        let new_len = (carry_over.len() * 2)
+            .max(1024 * 1024)
+            .min(carry_over.len() + 16 * 1024 * 1024);
         buffer.reserve(new_len - buffer.len());
     }
     buffer[..carry_over.len()].copy_from_slice(carry_over);
@@ -369,7 +371,7 @@ fn read_to_buffer<T: Read>(
 
                     // We need to read more lines
                     let len = buffer.len();
-                    let grow_by = len.max(1024 * 1024);
+                    let grow_by = len.min(16 * 1024 * 1024).max(1024 * 1024);
                     buffer.reserve(grow_by);
                     buffer.resize(len + 64 * 1024, 0);
                     read_target = &mut buffer[len..];