andygrove commented on issue #2452:
URL: 
https://github.com/apache/datafusion-comet/issues/2452#issuecomment-3367039203

   The last chart was incorrect.
   
   <img width="1800" height="900" alt="Image" 
src="https://github.com/user-attachments/assets/fc942115-8d17-4b5f-8533-507501450d46";
 />
   
   Here is where we run into issues:
   
   ```
   25/10/03 13:52:23 INFO core/src/execution/memory_pools/logging_pool.rs: 
[Task 1713] MemoryPool[ExternalSorter[137]].try_grow(698208) returning Ok
   25/10/03 13:52:23 INFO core/src/execution/memory_pools/logging_pool.rs: 
[Task 1713] MemoryPool[ExternalSorter[137]].try_grow(786432) returning Ok
   25/10/03 13:52:23 INFO core/src/execution/memory_pools/logging_pool.rs: 
[Task 1713] MemoryPool[ExternalSorter[137]].try_grow(717888) returning Ok
   25/10/03 13:52:23 INFO core/src/execution/memory_pools/logging_pool.rs: 
[Task 1713] MemoryPool[ExternalSorter[137]].try_grow(786432) returning Ok
   25/10/03 13:52:23 INFO core/src/execution/memory_pools/logging_pool.rs: 
[Task 1713] MemoryPool[ExternalSorter[137]].try_grow(738432) returning Ok
   25/10/03 13:52:23 INFO core/src/execution/memory_pools/logging_pool.rs: 
[Task 1713] MemoryPool[ExternalSorter[137]].try_grow(786432) returning Ok
   25/10/03 13:52:23 INFO core/src/execution/memory_pools/logging_pool.rs: 
[Task 1713] MemoryPool[ExternalSorter[137]].try_grow(786432) returning Ok
   25/10/03 13:52:23 INFO core/src/execution/memory_pools/logging_pool.rs: 
[Task 1713] MemoryPool[ExternalSorter[137]].try_grow(465216) returning Ok
   25/10/03 13:52:23 WARN CometTaskMemoryManager: Task 1713 requested 786432 
bytes but only received 0 bytes. Current allocation is 279744952 and the total 
memory consumption is 279744952 bytes.
   25/10/03 13:52:23 INFO core/src/execution/memory_pools/logging_pool.rs: 
[Task 1713] MemoryPool[ExternalSorter[137]].try_grow(786432) returning Err
   25/10/03 13:52:23 INFO core/src/execution/memory_pools/logging_pool.rs: 
[Task 1713] MemoryPool[ExternalSorterMerge[137]].shrink(10485760)
   25/10/03 13:52:23 INFO core/src/execution/memory_pools/logging_pool.rs: 
[Task 1713] MemoryPool[ExternalSorter[137]].shrink(786432)
   25/10/03 13:52:23 WARN CometTaskMemoryManager: Task 1713 requested 65536 
bytes but only received 0 bytes. Current allocation is 268472760 and the total 
memory consumption is 268472760 bytes.
   25/10/03 13:52:23 INFO core/src/execution/memory_pools/logging_pool.rs: 
[Task 1713] MemoryPool[ExternalSorterMerge[137]].try_grow(65536) returning Err
   25/10/03 13:52:23 INFO core/src/execution/memory_pools/logging_pool.rs: 
[Task 1713] MemoryPool[ExternalSorter[137]].shrink(685248)
   25/10/03 13:52:23 INFO core/src/execution/memory_pools/logging_pool.rs: 
[Task 1713] MemoryPool[ExternalSorter[137]].shrink(481344)
   25/10/03 13:52:23 INFO core/src/execution/memory_pools/logging_pool.rs: 
[Task 1713] MemoryPool[ExternalSorter[137]].shrink(420480)
   25/10/03 13:52:23 INFO core/src/execution/memory_pools/logging_pool.rs: 
[Task 1713] MemoryPool[ExternalSorter[137]].shrink(786432)
   25/10/03 13:52:23 INFO core/src/execution/memory_pools/logging_pool.rs: 
[Task 1713] MemoryPool[ExternalSorter[137]].shrink(786432)
   ```


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