diff --git a/.bash_aliases b/.bash_aliases
index a137ebf..d6db176 100644
--- a/.bash_aliases
+++ b/.bash_aliases
@@ -78,3 +78,13 @@ colors() {
   done
 }
 
+drop_cache() {
+  free -hw
+  sync
+  sudo bash -c "echo 1 > /proc/sys/vm/drop_caches"
+  if [[ $1 ]]; then
+    sudo swapoff -a
+    sudo swapon -a
+  fi
+  free -hw
+}