diff --git a/src/hotspot/share/gc/shenandoah/shenandoah_globals.hpp b/src/hotspot/share/gc/shenandoah/shenandoah_globals.hpp
index 00bd8609fc6..484837cf756 100644
--- a/src/hotspot/share/gc/shenandoah/shenandoah_globals.hpp
+++ b/src/hotspot/share/gc/shenandoah/shenandoah_globals.hpp
@@ -44,7 +44,7 @@
           "monitoring effort.")                                             \
           range(0.001, 1.00)                                                \
                                                                             \
-  product(uint, ShenandoahRateAccelerationSampleSize, 16, EXPERIMENTAL,     \
+  product(uint, ShenandoahRateAccelerationSampleSize, 8, EXPERIMENTAL,      \
           "In selected ShenandoahControlIntervals "                         \
           "(if ShenandoahAccelerationSamplePeriod seconds have passed "     \
           "since previous allocation rate sample), "                        \