diff --git a/docker/test/performance-comparison/config/users.d/perf-comparison-tweaks-users.xml b/docker/test/performance-comparison/config/users.d/perf-comparison-tweaks-users.xml
index 1f5218c2d10..5fcdfda0961 100644
--- a/docker/test/performance-comparison/config/users.d/perf-comparison-tweaks-users.xml
+++ b/docker/test/performance-comparison/config/users.d/perf-comparison-tweaks-users.xml
@@ -18,9 +18,6 @@
             <!-- One NUMA node w/o hyperthreading -->
             <max_threads>12</max_threads>
 
-            <!-- mmap shows some improvements in perf tests -->
-            <min_bytes_to_use_mmap_io>64Mi</min_bytes_to_use_mmap_io>
-
             <!-- disable jit for perf tests -->
             <compile_expressions>0</compile_expressions>
             <compile_aggregate_expressions>0</compile_aggregate_expressions>