From a41c659662519014a6147e24ab94e3ae286065c0 Mon Sep 17 00:00:00 2001
From: kneutron <50146127+kneutron@users.noreply.github.com>
Date: Mon, 12 Apr 2021 14:45:41 -0500
Subject: [PATCH] Add files via upload

---
 ZFS/clearcache.sh | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)
 create mode 100644 ZFS/clearcache.sh

diff --git a/ZFS/clearcache.sh b/ZFS/clearcache.sh
new file mode 100644
index 0000000..f5ac9cb
--- /dev/null
+++ b/ZFS/clearcache.sh
@@ -0,0 +1,17 @@
+#!/bin/bash
+
+# free up cache RAM
+# http://linux-mm.org/Drop_Caches
+
+free
+time sync
+
+echo 1 > /proc/sys/vm/drop_caches # free pagecache
+free
+
+#To free dentries and inodes:
+[ "$*" = "2" ] && echo 2 > /proc/sys/vm/drop_caches
+
+#To free pagecache, dentries and inodes:
+[ "$*" = "3" ] && echo 3 > /proc/sys/vm/drop_caches
+#echo 3 > /proc/sys/vm/drop_caches