clownxc commented on PR #8472:
URL: https://github.com/apache/hudi/pull/8472#issuecomment-1518672224
> It is great if we can have numbers to illustrate the gains after the
patch, like the cost reduction for memory or something.
I did a test based on your suggestion:
The number of HoodieRecords is `1000 * 100`
```java
WriteStatus status = new WriteStatus(false, 1.0);
for (int i = 0; i < 1000 * 100; i++) {
status.markSuccess(mock(HoodieRecord.class), Option.empty());
status.markFailure(mock(HoodieRecord.class), t, Option.empty());
}
System.out.println("status memory: " +
ObjectSizeCalculator.getObjectSize(status));
```
The memory occupied by `WriteStatus` before optimization is: 125512336 byte
```java
private final List<HoodieRecord> writtenRecords = new ArrayList<>();
private final List<HoodieRecord> failedRecords = new ArrayList<>();
```
```
status memory: 125512336
```
The memory occupied by `WriteStatus` after optimization is: 427408
```java
private final List<IndexItem> writtenRecordIndexes = new ArrayList<>();
private final List<IndexItem> failedRecordIndexes = new ArrayList<>();
```
```
status memory: 427408
```
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