alamb commented on a change in pull request #505:
URL: https://github.com/apache/arrow-rs/pull/505#discussion_r660145714
##########
File path: arrow/src/array/data.rs
##########
@@ -354,12 +354,7 @@ impl ArrayData {
/// Returns the total number of bytes of memory occupied physically by
this [ArrayData].
pub fn get_array_memory_size(&self) -> usize {
- let mut size = 0;
- // Calculate size of the fields that don't have
[get_array_memory_size] method internally.
- size += mem::size_of_val(self)
- - mem::size_of_val(&self.buffers)
Review comment:
since `child_data` and `null_bitmap` include the size of `self` in the
results of `bitmap.get_array_memory_size()` and `child.get_array_memory_size()`
I think we still need to subtract them off.
Perhaps a pattern such as
```rust
if let Some(bitmap) = &self.null_bitmap {
size += bitmap.get_array_memory_size()
}
for child in &self.child_data {
size += child.get_array_memory_size();
}
```
would make the intent clearer
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: [email protected]
For queries about this service, please contact Infrastructure at:
[email protected]
