Under the hood: an introduction to the Native Execution Engine for Microsoft Fabric
Article Written: February 23, 2026
Added: March 4, 2026
Type: tech1
Summary
The article introduces the Native Execution Engine for Microsoft Fabric, designed to enhance Apache Spark's performance without requiring code changes. It explains the challenges faced by traditional Spark execution due to increasing data volumes and real-time processing demands. The Native Execution Engine leverages C++ and vectorized execution to optimize Spark workloads, particularly for columnar data formats like Parquet and Delta Lake. The integration of open-source technologies Velox and Apache Gluten is highlighted, showcasing significant performance improvements and cost savings for users.
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Replace the Executor JVM should be a huge boost...