diff --git a/README.md b/README.md
index b2eaf5c..72fe122 100644
--- a/README.md
+++ b/README.md
@@ -54,14 +54,13 @@ sys     0m0.000s
 Test command:
 
 ```bash
-dd if=/dev/urandom of=$DISK/output bs=1M count=1024; dd if=$DISK/output of=/dev/null; rm -f $DISK/output
-dd if=/dev/zero of=$DISK/output bs=1M count=1024; dd if=$DISK/output of=/dev/null; rm -f $DISK/output
+dd if=/dev/urandom of=/tmp/data bs=10M count=1024; dd if=/tmp/data of=$DISK/output; dd if=$DISK/output of=/dev/null; rm -f $DISK/output; rm -f /tmp/data
+dd if=/dev/zero of=/tmp/data bs=10M count=1024; dd if=/tmp/data of=$DISK/output; dd if=$DISK/output of=/dev/null; rm -f $DISK/output; rm -f /tmp/data
 ```
 
 ```bash
 kubectl exec -it $(kubectl get pod --selector=app=monitor --output=jsonpath={.items..metadata.name}) -c disk -- bash
 export DISK=/tmp/hdd/
-export DISK=/tmp/usbssd/
 export DISK=/tmp/nvme/
 ```