diff --git a/runme.sh b/runme.sh
index 47ca251..84ceb93 100755
--- a/runme.sh
+++ b/runme.sh
@@ -3,10 +3,11 @@ appdir=$(cd `dirname $0` && pwd)
 apptmp='/tmp'
 vmsize='8G'
 vmmem='2G'
-k8sdsk="${apptmp}/k8s.raw"
+vcpu=`cat /proc/cpuinfo|grep proc|tail -1|awk '{print $NF}'`
+k8sdsk="${apptmp}/k8s-demo.raw"
 httpboot='http://ftp.debian.org/debian/dists/stretch/main/installer-amd64/current/images/netboot/debian-installer/amd64'
 seed='https://git.ix.gs/public/coins-demo/raw/branch/master/contrib/k8s-seed.txt'
-qemu="${appdir}/contrib/qemu-system-x86_64 -L ${appdir}/contrib/share/qemu -net nic -net user -m ${vmmem} -localtime -enable-kvm -cpu host,+nx -M pc -smp 2 -vga std -usbdevice tablet -k en-us -hda ${k8sdsk} -boot once=d -nographic"
+qemu="${appdir}/contrib/qemu-system-x86_64 -L ${appdir}/contrib/share/qemu -net nic -net user -m ${vmmem} -smp ${vcpu} -localtime -enable-kvm -cpu host,+nx -M pc  -vga std -usbdevice tablet -k en-us -hda ${k8sdsk} -boot once=d -nographic"
 ###
 installvm() {
     fallocate -l ${vmsize} ${k8sdsk}