diff --git a/performance_analysis/plot_from_tapper_logs.py b/performance_analysis/plot_from_tapper_logs.py
index 2f4d01259..8440d2e5c 100644
--- a/performance_analysis/plot_from_tapper_logs.py
+++ b/performance_analysis/plot_from_tapper_logs.py
@@ -66,7 +66,7 @@ if __name__ == '__main__':
     plt.ylabel('cpu (%)')
 
     ax = plt.subplot(3, 1, 2)
-    rss_samples_df.plot(cmap=COLORMAP, ax=ax)
+    (rss_samples_df / 1024 / 1024).plot(cmap=COLORMAP, ax=ax)
     plt.title('rss')
     plt.legend()
     plt.xlabel('# sample')