October 2025: Delivered ARM NEON-accelerated BlockBloomFilter for apache/doris with a dedicated benchmark suite to quantify gains. This included refactoring to isolate architecture-specific optimizations and adding tests to validate performance improvements. Commit 08a5143b8c1c61f586d6fa030b68598f5b194551 implements the optimization ([opt](arm) Improve BlockBloomFilter performance with NEON intrinsics #57183).

This month focused on expanding cross-architecture and OpenEuler CI coverage for the apache/incubator-gluten project, delivering foundational CI capabilities that improve reliability and feedback loops across ARM and OpenEuler environments.

May 2025 performance summary: Delivered targeted reliability and build-time improvements across IBM/velox and apache/incubator-gluten. Implemented robust time zone error handling with tests, reducing runtime exceptions when unknown zones are encountered. Automated re2 source selection for OpenEuler 24.03 in Gluten, removing hard-coded source and enabling the setup script to determine the appropriate re2 source automatically. These changes improve runtime stability, reduce maintenance burden, and streamline cross-distro builds, enhancing platform compatibility for downstream teams.

March 2025 monthly summary for apache/incubator-gluten focusing on ARM reliability and portability. Key features delivered include CentOS 8 ARM Docker builds (static and dynamic) and CI/CD image tagging with a CentOS 8 JDK8 tag to ensure consistent Java versions across ARM pipelines. Major bugs fixed include a JNI String Handling Buffer Overflow on ARM in jStringToCString, prevented by allocating buffer space for the null terminator. Overall impact: improved cross-architecture portability, CI stability, and production safety for ARM deployments. Technologies demonstrated: JNI/C memory management, ARM-specific optimizations, Docker image workflows, CentOS 8, CI/CD pipelines, and Git-based release tagging for reproducible builds.