DataYatriSpark, seen under the hood
Simulate

Simulation/Databricks

Educational simulation
Databricks

Photon

Native operators vs a UDF that falls back to the JVM.

Watch the canvas:JVM SparkPhoton nativeUDF fallbackLive simulation
FileScanParquetFilterJVMHashAggregateJVMClassic Spark operators in the JVM — the baseline.
Photon is a native engine beside Spark — eligible operators only.