Script to test ls speed on a single host using two mount points.

Not a great test but can give basic information on ls speed issues.

diff --git a/lustre/tests/lstiming.sh b/lustre/tests/lstiming.sh
new file mode 100644 (file)
index 0000000..0b494e4
--- /dev/null
+++ b/lustre/tests/lstiming.sh
@@ -0,0 +1,51 @@
+#!/bin/bash
+
+set -e
+
+PATH=$PATH:.
+
+CHECKSTAT=${CHECKSTAT:-"checkstat -v"}
+MOUNT1=${MOUNT1:-/mnt/lustre1}
+MOUNT2=${MOUNT2:-/mnt/lustre2}
+DIRNAME=${DIRNAME:-"ls-timing"}
+DIRSIZE=${DIRSIZE:-200}
+export NAME=${NAME:-mount2}
+
+error () { 
+    echo FAIL
+    exit 1
+}
+
+pass() { 
+    echo PASS
+}
+echo "Mounting..."
+mount | grep $MOUNT1 || sh llmount.sh
+
+echo -n "Preparing test directory with $DIRSIZE files..."
+rm -rf "$MOUNT1/$DIRNAME"
+rm -rf "$MOUNT2/$DIRNAME"
+mkdir -p "$MOUNT1/$DIRNAME"
+[ -d "$MOUNT2/$DIRNAME" ] || error
+createmany -o $MOUNT1/$DIRNAME/file 0 $DIRSIZE &> /dev/null
+echo "done"
+
+echo -n "Cached ls: "
+time ls -lr $MOUNT1/$DIRNAME 1> /dev/null
+
+echo -n "Uncached ls: "
+time ls -lr $MOUNT2/$DIRNAME 1> /dev/null
+
+
+fsx $MOUNT1/$DIRNAME/fsx.file &>/dev/null &
+fsxpid=$!
+
+echo -n "Cached busy ls:"
+time ls -lr $MOUNT1/$DIRNAME 1> /dev/null
+
+echo -n "Uncached busy ls: "
+time ls -lr $MOUNT2/$DIRNAME 1> /dev/null
+
+kill $fsxpid
+
+exit