diff --git a/core/src/main/scala/org/apache/spark/rapids/tool/benchmarks/Benchmark.scala b/core/src/main/scala/org/apache/spark/rapids/tool/benchmarks/Benchmark.scala
index a09f121ad..45ad3bdd4 100644
--- a/core/src/main/scala/org/apache/spark/rapids/tool/benchmarks/Benchmark.scala
+++ b/core/src/main/scala/org/apache/spark/rapids/tool/benchmarks/Benchmark.scala
@@ -104,6 +104,7 @@ class Benchmark(
     val gcTimes = ArrayBuffer[Long]()
     //For tracking maximum GC over iterations
     for (i <- 0 until minIters) {
+      System.gc()  // ensures GC for a consistent state across different iterations
       val timer = new ToolsTimer(i)
       val memoryTracker = new MemoryMetricsTracker
       f(timer)