Zihao Ye created IMPALA-13590:
---------------------------------
Summary: The CACHELINE_ALIGNED of PerFilterState may not work on
dynamic allocations
Key: IMPALA-13590
URL: https://issues.apache.org/jira/browse/IMPALA-13590
Project: IMPALA
Issue Type: Bug
Components: Backend
Affects Versions: Impala 4.4.1
Reporter: Zihao Ye
The PerFilterState class is marked with CACHELINE_ALIGNED:
[https://github.com/apache/impala/blob/8416432cc3e656b6c5fa230d4075ba64e0f3d091/be/src/runtime/runtime-filter-bank.h#L300]
And its creation is dynamic:
[https://github.com/apache/impala/blob/8416432cc3e656b6c5fa230d4075ba64e0f3d091/be/src/runtime/runtime-filter-bank.cc#L116]
According to this response, such a combination may be ineffective:
[https://stackoverflow.com/questions/19251360/attribute-alignedx-doesnt-work-on-dynamic-allocations].
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
